1
|
Lee SM, Kim TY, Kang HG, Lee J, Kim M. Outcomes of retropupillary iris claw lens implantation in patients with intraocular lens dislocation and low (less than 1000 cells/mm 2) corneal endothelial cell density. BMC Ophthalmol 2024; 24:375. [PMID: 39187792 PMCID: PMC11348683 DOI: 10.1186/s12886-024-03621-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 08/07/2024] [Indexed: 08/28/2024] Open
Abstract
BACKGROUND Posterior chamber intraocular lens (IOL) dislocation is a common complication of cataract surgery. Dislocated IOLs often require surgical intervention due to the potentially severe risks of leaving this condition untreated. If a patient with extremely low corneal endothelial cell density (ECD) presents with IOL dislocation, the surgeon faces a crucial dilemma of choosing the most optimal surgical treatment option. We sought to investigate the efficacy and safety of retropupillary iris claw intraocular lens (R-IOL) implantation in patients with IOL dislocation and extremely low (< 1000 cells/mm2) ECD. METHODS We retrospectively reviewed the medical records of nine patients (all men) whose pre-operative ECD was < 1000 cells/mm2 and who underwent R-IOL implantation due to intraocular subluxation or total dislocation into the vitreous cavity between 2014 and 2020. We evaluated corneal endothelial function and visual outcomes after surgery. RESULTS Nine patients were included in this study. The mean age at diagnosis was 64.89 ± 7.15 years (range 57-76 years), and the follow-up duration was 37.93 ± 23.72 months (range 18.07-89.07 months). No patients developed bullous keratopathy during follow-up. Compared to the initial ECD, corneal thickness (CT), coefficient variation of cell area (CV) and percentage of hexagonal cells (HEX), there was no statistically significant decrease in the ECD, CV, and HEX at last follow-up (P = 0.944, 0.778, 0.445, 0.443). There was significant improvement in the mean uncorrected distance visual acuity (UDVA) at the last follow-up (average 0.13 logMAR, 20/27 Snellen) compared to the pre-operative mean UDVA (average 1.09 logMAR, 20/250 Snellen) (P < 0.01). CONCLUSIONS R-IOL implantation did not result in a statistically significant decline in corneal endothelial function in patients with preoperatively low ECD, and it significantly improved the mean UDVA postoperatively. R-IOL implantation appears to be a safe and effective treatment modality for intraocular lens dislocation in patients with low ECD (< 1000 cells/mm²); however, long-term follow-up studies are warranted to corroborate these findings.
Collapse
Affiliation(s)
- Seung Min Lee
- Department of Ophthalmology, Institute of Vision Research, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonjuro, Gangnam-gu, Seoul, 06273, Republic of Korea
| | - Tae Young Kim
- Department of Ophthalmology, Institute of Vision Research, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonjuro, Gangnam-gu, Seoul, 06273, Republic of Korea
| | - Hyun Goo Kang
- Department of Ophthalmology, Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul, Republic of Korea
| | - Junwon Lee
- Department of Ophthalmology, Institute of Vision Research, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonjuro, Gangnam-gu, Seoul, 06273, Republic of Korea
| | - Min Kim
- Department of Ophthalmology, Institute of Vision Research, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonjuro, Gangnam-gu, Seoul, 06273, Republic of Korea.
| |
Collapse
|
2
|
Baur ID, Winkelmann I, Albrecht M, Botros Y, Auffarth GU, Khoramnia R. [Correction of aphakia in cases of insufficient capsular bag stability]. DIE OPHTHALMOLOGIE 2024:10.1007/s00347-024-02097-3. [PMID: 39172164 DOI: 10.1007/s00347-024-02097-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 07/18/2024] [Accepted: 07/23/2024] [Indexed: 08/23/2024]
Abstract
A variety of situations can lead to the need for an alternative method of intraocular lens (IOL) fixation if implantation in the capsular bag is not possible. Depending on the situation, sulcus-fixated IOLs, iris-fixated IOLs (IFIOLs) and scleral-fixated IOLs (SFIOLs) are available. With SFIOLs, a distinction is made between suture-fixated and sutureless-fixated techniques. This paper summarizes the advantages and disadvantages of the different approaches, including the newer methods of sutureless SFIOLs. The decision on a specific approach in the individual case depends on both the individual circumstances of the patient and the experience of the surgeon.
Collapse
Affiliation(s)
- Isabella D Baur
- Augenklinik des Universitätsklinikums Augsburg, Stenglinstr. 2, 86156, Augsburg, Deutschland
- Augenklinik, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland
| | - Isabel Winkelmann
- Augenklinik des Universitätsklinikums Augsburg, Stenglinstr. 2, 86156, Augsburg, Deutschland
| | - Michael Albrecht
- Augenklinik, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland
| | - Youssef Botros
- Augenklinik des Universitätsklinikums Augsburg, Stenglinstr. 2, 86156, Augsburg, Deutschland
| | - Gerd U Auffarth
- Augenklinik, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland
| | - Ramin Khoramnia
- Augenklinik, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland.
| |
Collapse
|
3
|
Kurniawan C, Kartasasmita AS, Harley O. Short-term outcomes of implanting a retropupillary iris-claw intraocular lens in patients with lens and intraocular lens drops. NARRA J 2024; 4:e892. [PMID: 39280313 PMCID: PMC11392002 DOI: 10.52225/narra.v4i2.892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Accepted: 08/06/2024] [Indexed: 09/18/2024]
Abstract
Lens drop and intraocular lens (IOL) drop can occur after cataract or phacoemulsification surgery, where the IOL is dislocated from the capsular bag into the vitreous cavity. The aim of this study was to investigate the short-term outcomes of implanting a retropupillary iris-claw in patients with IOL drop and lens drop after phacoemulsification. A cross-sectional study was conducted at Santosa Hospital, Bandung, West Java, Indonesia, from January 2020 to December 2023. Patients were divided into two groups: IOL drop and lens drop groups. Total sampling was used, involving 51 patients in the present study, with 27 patients in the IOL drop group and 24 patients in the lens drop group. Data collected included age, sex, eye laterality, the onset of IOL drop or lens drop, intraocular pressure (IOP), uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), record of astigmatism change preoperative and postoperative, and postoperative pars plana vitrectomy (PPV) complications. Our data indicated that the UDVA significantly improved in both IOL drop and lens drop groups after PPV surgery (p<0.001). However, there were no significant changes in IOP or astigmatism following the surgery in either group. Over one month, both groups showed improved UDVA, decreased IOP, and changes in astigmatism, with no significant differences between groups. Similarly, there was no significant difference in CDVA between IOL drop and lens drop groups. Only four complications were recorded in the present study. Comparing IOL drop and lens drop groups, only an increase in IOP showed a significant difference (p=0.018). Corneal edema, IOL decentration, and pupil ovalization were not significantly different. In conclusion, retropupillary iris-claw IOL implantation is safe and effective for aphakic patients with complications from phacoemulsification, regardless of whether it is lens drop or IOL drop.
Collapse
Affiliation(s)
- Chalid Kurniawan
- Department of Ophthalmology, Faculty of Medicine, Universitas Pasundan, Bandung, Indonesia
- Santosa Eye Center, Santosa Hospital, Bandung, Indonesia
| | - Arief S Kartasasmita
- Department of Ophthalmology, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Ohisa Harley
- Santosa Eye Center, Santosa Hospital, Bandung, Indonesia
| |
Collapse
|
4
|
Marolo P, Caselgrandi P, Gaidano M, Conte F, Parisi G, Borrelli E, Fallico M, Toro MD, Ventre L, Vaiano AS, Reibaldi M. Long-Term Surgical Outcomes of Scleral Flap versus Scleral Pocket Technique for Sutureless Intrascleral One-Piece Lens Fixation. J Clin Med 2024; 13:4452. [PMID: 39124719 PMCID: PMC11313651 DOI: 10.3390/jcm13154452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/22/2024] [Accepted: 07/27/2024] [Indexed: 08/12/2024] Open
Abstract
Objectives: This study compared long-term surgical outcomes of the scleral flap versus scleral pocket technique for sutureless intrascleral one-piece intraocular lens (IOL) fixation. Methods: A retrospective comparative study was conducted at a single center, involving consecutive patients undergoing sutureless intrascleral one-piece IOL implantation, between January 2020 and May 2022. Eyes were divided into two groups based on the surgical technique: group 1 underwent scleral flap (n = 64), and group 2 received scleral pocket technique (n = 59). Visual acuity, refractive outcomes, and complications were assessed over a minimum 24-month follow-up period. Results: Both groups showed improvements in best-corrected visual acuity (BCVA), increasing from 0.84 ± 0.56 logMAR at baseline to 0.39 ± 0.23 logMAR (p = 0.042) at 24 months in group 1 and from 0.91 ± 0.63 logMAR at baseline to 0.45 ± 0.38 logMAR (p = 0.039) at 24 months in group 2. No significant differences in BCVA were observed between the groups at baseline (p = 0.991), 12 (p = 0.496) and 24 months (p = 0.557). Mean spherical equivalent (-0.73 ± 1.32 D in group 1 and -0.92 ± 0.99 D in group 2, p = 0.447), refractive prediction error (-0.21 ± 1.1 D in group 1 and -0.35 ± 1.8 D in group 2, p = 0.377), and surgically induced astigmatism (0.74 ± 0.89 D in group 1 and 0.85 ± 0.76 in group 2, p = 0.651) were comparable between the two groups. An IOL tilt of 5.5 ± 1.8 and 5.8 ± 2.0 degrees (p = 0.867) and an IOL decentration of 0.41 ± 0.21 mm and 0.29 ± 0.11 mm (p = 0.955) were obtained, respectively, in group 1 and group 2 at 24 months. Mean endothelial cell density remained stable at 24 months in both groups (p = 0.832 in group 1 and p = 0.443 in group 2), and it was 1747.20 ± 588.03 cells/mm2 in group 1 and 1883.71 ± 621.29 cells/mm2 in group 2 (p = 0.327) at baseline, 1545.36 ± 442.3 cells/mm2 in group 1 and 1417.44 ± 623.40 cells/mm2 in group 2 (p = 0.483) at 24 months. No cases of endophthalmitis were observed. Conclusions: The scleral pocket technique for sutureless intrascleral one-piece IOL fixation is comparable to the traditional scleral flap technique in terms of long-term visual outcomes and safety. The scleral pocket technique offers a simplified approach and a viable option even for less experienced surgeons.
Collapse
Affiliation(s)
- Paola Marolo
- Department of Ophthalmology, University of Turin, 10126 Turin, Italy
| | - Paolo Caselgrandi
- Department of Ophthalmology, University of Turin, 10126 Turin, Italy
| | - Michele Gaidano
- Department of Ophthalmology, University of Turin, 10126 Turin, Italy
| | - Fabio Conte
- Department of Ophthalmology, University of Turin, 10126 Turin, Italy
| | - Guglielmo Parisi
- Department of Ophthalmology, University of Turin, 10126 Turin, Italy
| | - Enrico Borrelli
- Department of Ophthalmology, University of Turin, 10126 Turin, Italy
| | - Matteo Fallico
- Department of Ophthalmology, University of Catania, 95123 Catania, Italy
| | - Mario Damiano Toro
- Department of General Ophthalmology, Medical University of Lublin, 20079 Lublin, Poland
- Eye Clinic, Public Health Department, Federico II University, 80131 Naples, Italy
| | - Luca Ventre
- Department of Ophthalmology, Beauregard Hospital, 11100 Aosta, Italy
| | - Agostino S. Vaiano
- Institute of Ophthalmology, Santa Croce e Carle Hospital, 12100 Cuneo, Italy
| | - Michele Reibaldi
- Department of Ophthalmology, University of Turin, 10126 Turin, Italy
| |
Collapse
|
5
|
Guerin PL, Guerin GM, Pastore MR, Gouigoux S, Tognetto D. Long-term functional outcome between Yamane technique and retropupillary iris-claw technique in a large study cohort. J Cataract Refract Surg 2024; 50:605-610. [PMID: 38350232 PMCID: PMC11146187 DOI: 10.1097/j.jcrs.0000000000001421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/15/2024]
Abstract
PURPOSE To evaluate which secondary intraocular lens (IOL) implantation technique was more successful in achieving the best postoperative results and refractive outcomes between retropupillary iris-claw IOL (ICIOL) and flanged intrascleral IOL (FIIOL) fixation with the Yamane technique. SETTING Eye Clinic of the University of Trieste, Trieste, Italy. DESIGN Retrospective observational study. METHODS 116 eyes of 110 patients who underwent ICIOL or FIIOL were analyzed. Patients with follow-up shorter than 6 months or with incomplete clinical data were excluded. Collected data included demographics, ocular comorbidity, indication of surgery, intraocular pressure, early (≤1 month) and late (>1 month) postoperative complications, corrected distance visual acuity (CDVA), and manifest refraction at the last follow-up visit. RESULTS 50% (n = 58) of eyes underwent FIIOL and 50% (n = 58) ICIOL implantation for aphakia (n = 44, 38%) and IOL dislocation (n = 72, 62%). No statistically significant differences in demographics, comorbidity, follow-up duration, postoperative complications, and surgical indications were found. The refractive prediction error (RPE) was 0.69 ± 0.94 diopter (D) in the FIIOL group and 0.21 ± 0.75 D in the ICIOL group ( P = .03), indicating residual hyperopia after both techniques. RPE, mean absolute error, and median absolute error were higher in the FIIOL group ( P = .003). ICIOL implantation was more successful in obtaining a RPE between -0.50 D and +0.50 D (52% of ICIOL, n = 30, and 31% of FIIOL, n = 18). CONCLUSIONS Both techniques were effective in increasing preoperative CDVA with no statistical difference between them. Although complication rates did not significantly differ, the FIIOL group exhibited less predictable refractive outcomes. Adjusting the dioptric power of the 3-piece IOL, as performed in ciliary sulcus implantation, to prevent myopic shift, is not recommended.
Collapse
Affiliation(s)
- Pier Luigi Guerin
- From the Eye Clinic, Department of Medical, Surgical Sciences and Health, University of Trieste, Trieste, Italy
| | - Gian Marco Guerin
- From the Eye Clinic, Department of Medical, Surgical Sciences and Health, University of Trieste, Trieste, Italy
| | - Marco Rocco Pastore
- From the Eye Clinic, Department of Medical, Surgical Sciences and Health, University of Trieste, Trieste, Italy
| | - Stefano Gouigoux
- From the Eye Clinic, Department of Medical, Surgical Sciences and Health, University of Trieste, Trieste, Italy
| | - Daniele Tognetto
- From the Eye Clinic, Department of Medical, Surgical Sciences and Health, University of Trieste, Trieste, Italy
| |
Collapse
|
6
|
Toro MD, Nowomiejska K, Concilio M, Motta L, Rekas KM, Costagliola C, Avitabile T, Castellino N, Caputo G, Choragiewicz T, Rejdak R. T-shaped pars plana scleral incision to remove large intraocular foreign body. Front Med (Lausanne) 2024; 11:1399321. [PMID: 38808133 PMCID: PMC11130438 DOI: 10.3389/fmed.2024.1399321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/26/2024] [Indexed: 05/30/2024] Open
Abstract
Aim To investigate the efficacy and safety profile of T-shaped pars plana scleral incision technique in removing large intraocular foreign bodies, during 23-gauge pars plana vitrectomy. Methods Retrospective interventional case series that included patients diagnosed with a large intraocular foreign body (IOFB). Possible postoperative complications were recorded 24 h, 1 month, 3 and 6 months postoperatively. Results Thirty eyes of 30 patients (48 ± 5 years old) were enrolled. All IOFBs were successfully removed: mean diameters of 7.8 ± 2.0 mm and 2.6 ± 0.3 mm. Silicone oil and sulfur hexafluoride were used in 27 and 3 eyes, respectively. Lensectomy was performed in 27 eyes. Intraocular lens was implanted at first attempt in 12 eyes; during a second operation in 12 eyes and 6 eyes remained aphakic. At any follow-up, no signs of postoperative complications were observed. Secondary retinal detachment occurred in 12 eyes. Mean preoperative corrected distance visual acuity was 0.04, on the Snellen scale; it increased to 0.07, at last follow-up. Mean intraocular pressure was 17.97 mmHg. All eyes were preserved. Conclusion T-shaped scleral incision could be an effective, safe and easy-to-perform standard procedure to remove large IOFBs during pars plana vitrectomy, without increasing the risk of surgical complications and additional damage to the ocular tissues.
Collapse
Affiliation(s)
- Mario Damiano Toro
- Eye Clinic, Public Health Department, University of Naples Federico II, Naples, Italy
- Department of General and Pediatric Ophthalmology, Medical University of Lublin, Lublin, Poland
| | - Katarzyna Nowomiejska
- Department of General and Pediatric Ophthalmology, Medical University of Lublin, Lublin, Poland
| | - Marina Concilio
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Campobasso, Italy
| | - Lorenzo Motta
- Department of Ophthalmology, William Harvey Hospital, East Kent Hospitals University NHS Foundation Trust, Ashford, United Kingdom
| | - Krzysztof Marek Rekas
- Students’ Scientific Association at the Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, Lublin, Poland
| | - Ciro Costagliola
- Eye Clinic, Department of Neuroscience, Reproductive Sciences and Dentistry, University of Naples Federico II, Naples, Italy
| | | | | | - Georges Caputo
- Department of Pediatric Ophthalmology, Rothschild Foundation Hospital, Paris-Cedex, France
| | - Tomasz Choragiewicz
- Department of General and Pediatric Ophthalmology, Medical University of Lublin, Lublin, Poland
| | - Robert Rejdak
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, Lublin, Poland
| |
Collapse
|
7
|
Barbosa RC, Carvalho R. Z-suture scleral fixation intraocular lenses: A refractive and safety report. Eur J Ophthalmol 2024:11206721241230566. [PMID: 38304925 DOI: 10.1177/11206721241230566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
PURPOSE Scleral fixation of intraocular lenses constitutes a surgical option in cases where there is inadequate capsular support or zonular insufficiency. Knotless techniques, such as the z-suture technique, avoid suture-related complications, such as conjunctival erosion or exposure. The purpose of this study was to evaluate the visual outcomes and postoperative complications of patients who underwent scleral z-suture fixation of the Akreos AO® intraocular lenses. METHODS A retrospective, observational study was conducted, including 22 eyes of 20 patients who underwent Akreos AO® intraocular lenses using the z- suture scleral fixation technique. RESULTS The mean age of the patients was 55,64 ± 28,47 years old, and the mean follow-up time was 25,64 months. The most common indication for surgery was previous complicated cataract surgey. The mean postoperative spherical equivalent was +0,058D ± 0,79D, with values ranging from - 1,50D to +1,00D. Mean best-corrected visual acuity was 0,178 ± 0,15 logMAR. Intraocular pressure was 15,07 ± 2,56 mmHg on the day after surgery, and 16 ± 2,15 mmHg 1 month after. No suture-related complications were observed in any patient postoperatively. One patient had a slight inferonasal lens dislocation and another patient had a severe case of herpetic keratitis posoperatively. DISCUSSION The knotless z-suture technique appears to be a reliable and safe way to fix an intraocular lens in the sclera, regardless of the patient's age. Our results show good visual results and predictable refractive outcomes. Decades of follow-up may be necessary to assess the long-term risk of lens dislocation.
Collapse
Affiliation(s)
- Renato Correia Barbosa
- Ophthalmology Department, Hospital Pedro Hispano - Unidade Local de Saúde de Matosinhos, ULSM, Matosinhos, Portugal
| | - Rui Carvalho
- Ophthalmology Department, Hospital Pedro Hispano - Unidade Local de Saúde de Matosinhos, ULSM, Matosinhos, Portugal
| |
Collapse
|
8
|
Khoramnia R, Baur ID, Auffarth GU. Aetiology and Management of IOL Dislocations. Klin Monbl Augenheilkd 2023; 240:971-980. [PMID: 37494272 DOI: 10.1055/a-2074-9028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Early (< 3 months) intraocular lens (IOL) dislocation occurs due to insufficient fixation in the capsular bag, while late dislocation (≥ 3 months) is due to increasing insufficiency of the zonular apparatus. Iris-fixated IOL (IFIOL) and suture- or sutureless-fixated scleral IOL (SFIOL) are currently the most commonly used methods when IOL exchange is indicated. Different methods of scleral fixation with or without sutures have been described. The most important techniques are summarised in this paper. IFIOL and SFIOL allow comparable visual outcomes but differ in their risk profile. The decision of which method to use should be made case by case and in accordance with the surgeon's preference.
Collapse
Affiliation(s)
- Ramin Khoramnia
- International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg, Deutschland
| | - Isabella Diana Baur
- International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg, Deutschland
| | - Gerd U Auffarth
- International Vision Correction Research Centre (IVCRC) und David J Apple International Laboratory for Ocular Pathology, Universitäts-Augenklinik Heidelberg, Deutschland
| |
Collapse
|
9
|
[Secondary implantation of retropupillary fixated iris-claw intraocular lenses]. DIE OPHTHALMOLOGIE 2023; 120:184-190. [PMID: 36028580 DOI: 10.1007/s00347-022-01714-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/29/2022] [Accepted: 07/31/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND There is no standard for the treatment of functional aphakia in cases with a compromised capsular system. Retropupillary fixation of an Artisan iris-claw IOL ("Intraokularlinse") is one of the established procedures. OBJECTIVE Aim of this study was the evaluation of indications, visual and refractive long-term results and complication rates after retropupillary implantation of an iris-claw lens. MATERIAL AND METHODS This retrospective study comprised 366 eyes that received a retropupillary Artisan intraocular lens (IOL) in a single center between January 2009 and December 2019. The mean follow-up period was 249 days (8 months) ±516 days. RESULTS IOL dislocation (68%) was the most common reason for a retropupillary iris-claw implantation. Previous vitrectomy was a significant preoperative risk factor for IOL dislocation (p = 0.0001). Best corrected visual acuity improved from 0.65 ± 0.64 (logMAR) preoperatively to 0.57 ± 0.51 (logMAR) 4-6 weeks after the surgery. The mean deviation from the planned refraction was +0.40 ± 1.37 dpt and 73% of the patients had a deviation within ±1 dpt of the planned refraction. Relevant postoperative complications during the first 4 weeks were pupillary distortion (42%), ocular hypotony (15%) and transient hyphema (14%). Late complications (≥4 weeks after the surgery) included persistent pupillary distortion (20%), cystoid macular edema (13%) and iris-claw disenclavation (6%). CONCLUSION The retropupillary Artisan implantation is an efficient method for treating aphakia without capsular support and provides good visual and refractive results with an acceptable surgical risk profile.
Collapse
|
10
|
Karjou Z, Karimi S, Yaghoobi M, Nikkhah H, Safi S. Pars plana lensectomy and iris-claw Artisan intraocular lens implantation in patients with Marfan syndrome. Oman J Ophthalmol 2023; 16:64-68. [PMID: 37007247 PMCID: PMC10062075 DOI: 10.4103/ojo.ojo_25_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 08/13/2022] [Accepted: 12/02/2022] [Indexed: 02/23/2023] Open
Abstract
RATIONAL The rationale of this study was to evaluate the visual and anatomical outcomes of pars plana lensectomy and iris-claw Artisan intraocular lens (IOL) implantation in patients with subluxated crystalline lenses secondary to Marfan syndrome. MATERIALS AND METHODS In this retrospective case series, we evaluate the records of 21 eyes of 15 patients with Marfan syndrome and moderate-to-severe crystalline lens subluxation who underwent pars plana lensectomy/anterior vitrectomy and implantation of iris-claw Artisan IOL at referral hospital from September 2015 to October 2019. RESULTS Twenty-one eyes of 15 patients (10 males and five females) with a mean age of 24.47 ± 19.14 years were included. Mean best-corrected visual acuity was improved from 1.17 ± 0.55 logMAR to 0.64 ± 0.71 logMAR at the final follow-up visit (P < 0.001). The mean intraocular pressure did not change significantly (P = 0.971). The final refraction showed a mean sphere of 0.54 ± 2.46 D and a mean cylinder of 0.81 ± 1.03 at the mean axis of 57.92 ± 58.33 degrees. One eye developed rhegmatogenous retinal detachment 2 months after surgery. CONCLUSIONS Pars plana lensectomy and iris-claw Artisan IOL implantation seem to be a useful, impressive, and safe procedure with a low rate of complications in Marfan patients with moderate-to-severe crystalline lens subluxation. Visual acuity was significantly improved with acceptable anatomical and refractive outcomes.
Collapse
|
11
|
Cheng KKW, Tint NL, Sharp J, Alexander P. Surgical management of aphakia. J Cataract Refract Surg 2022; 48:1453-1461. [PMID: 36449676 DOI: 10.1097/j.jcrs.0000000000000954] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 04/13/2022] [Indexed: 12/05/2022]
Abstract
Despite the safety and efficacy of cataract surgery, intraoperative complications can hamper the ability to place an intraocular lens in the capsular bag. With vast numbers of cataract surgeries performed daily, complications occur often enough that every ophthalmologist should be equipped with techniques to manage aphakia. Medical management of aphakia used to be commonplace but these techniques have their disadvantages including thick bulky lenses, poor cosmesis, and aniseikonia. Surgical management of aphakia overcomes these disadvantages and offers patients the possibility of a spectacle and contact lens-free lifestyle. This article reviews the various options of surgical management of aphakia and their advantages and disadvantages. Comparison of outcomes between techniques and a protocol for deciding between techniques is presented.
Collapse
Affiliation(s)
- Kelvin K W Cheng
- From the Princess Alexandra Eye Pavilion, Edinburgh, United Kingdom (Cheng, Tint); Cambridge University Hospitals, Cambridge, United Kingdom (Sharp, Alexander)
| | | | | | | |
Collapse
|
12
|
Kelkar AS, Kelkar J, Bhende P, Narayanan R, Maiti A, Bolisetty M, Singhvi P. Preferred practice patterns in aphakia management in adults in India: A survey. Indian J Ophthalmol 2022; 70:2855-2860. [PMID: 35918929 PMCID: PMC9672759 DOI: 10.4103/ijo.ijo_319_22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Purpose: To assess different approaches in the management of aphakia in adults in Indian ophthalmologists via an online survey. Methods: A survey-monkey based online questionnaire was fielded to Indian ophthalmologists in accordance with the CHERRIES guidelines. We recorded participants’ demographics, practice settings, and preferred surgical options including the type of intraocular lens (IOL) preferred when encountering a case of aphakia in adults with and without adequate capsular support. Differences between anterior segment (AS) surgeons and vitreoretinal (VR) surgeons as well as differences between surgeons with more or less than 10 years of surgical experience were evaluated using analytic statistics. Results: Of the 481 surgeons who responded to the survey, 369 (77%) were AS surgeons and the remaining 112 (23%) were VR surgeons and represented all regions of India. When encountering posterior capsular rent during cataract surgery, a three-piece IOL in the ciliary sulcus was the most preferred (n = 275, 57%) when there was adequate capsular support, while a retrofixated iris-claw IOL (n = 91, 19%) was the commonest choice in eyes without adequate capsular support. With associated nucleus drop, 85% of surgeons preferred to refer the patient to a VR surgeon and left the eye aphakic. Multivariable logistic regression showed that VR surgeons were more than six times likely to prefer a scleral fixated intraocular lens (SFIOLs) [odds ratio (OR) = 6.5, 95% confidence interval (CI) = 3.4–12.5, P < 0.001] and surgeons with >10 years of experience were also twice more likely to prefer an SFIOL (OR = 2.4, 95% CI = 1.2–4.9, P = 0.02). Conclusion: The choice of IOL in absence of capsular support in adult eyes differs between AS and VR surgeons and is also influenced by the surgeon’s experience.
Collapse
Affiliation(s)
- Aditya S Kelkar
- Department of Ophthalmology, National Institute of Ophthalmology, Pune, Maharashtra, India
| | - Jai Kelkar
- Department of Ophthalmology, National Institute of Ophthalmology, Pune, Maharashtra, India
| | - Pramod Bhende
- Department of Ophthalmology, Sankara Nethralaya, Chennai, Tamil Nadu, India
| | - Raja Narayanan
- Department of Ophthalmology, LV Prasad Eye Institute, Hyderabad, Telangana, India
| | - Aniruddha Maiti
- Department of Ophthalmology, Netralayam-The Super specialty Eye Care Centre, Kolkata, West Bengal, India
| | - Mounika Bolisetty
- Department of Ophthalmology, National Institute of Ophthalmology, Pune, Maharashtra, India
| | - Priyanka Singhvi
- Department of Ophthalmology, National Institute of Ophthalmology, Pune, Maharashtra, India
| |
Collapse
|
13
|
Fernández Berdasco K, Castro Navarro J, González Castaño CN, Rodríguez Villa S, García Fernández M. Retrospective study of secondary implantation of retroiridial fixation lenses in patients without capsular support: functional results and complications. ARCHIVOS DE LA SOCIEDAD ESPANOLA DE OFTALMOLOGIA 2022; 97:317-322. [PMID: 35676024 DOI: 10.1016/j.oftale.2021.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 06/13/2021] [Indexed: 06/15/2023]
Abstract
INTRODUCTION The correction of aphakia when there is no adequate capsular support remains a therapeutic challenge. The use of retroiridial fixation lenses has been extended given their lower complication rate compared to other available options. MATERIAL AND METHODS Retrospective study including all cases operated with an Artisan® retropupillary aphakia implant. RESULTS 33 eyes were included out of a total of 28 patients. The follow-up period has been 38.55 months (1-96). 32.3% had a lens dislocation and 67.7% had an intraocular lens dislocation. The previous mean best corrected visual acuity (BCVA) was 1.18 ± 0.79 logMAR and post-intervention 0.36 ± 0.62 (p < 0.01). 93.8% of the patients presented a final BCVA equal to or better and 62.5% an improvement of 3 or more lines. The most frequent complication was corectopia (31.3%) and hypotony in the immediate postoperative period (21.9%). An epiretinal membrane (ERM) developed in 18.8% and cystic macular oedema (CME) in 9.4%. The presence of complications in the postoperative period did not statistically influence the final BCVA. CONCLUSIONS The retropupillary Artisan® lens allows the correction of aphakia with satisfactory visual results and a low rate of complications.
Collapse
Affiliation(s)
- K Fernández Berdasco
- Servicio de Oftalmología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain.
| | - J Castro Navarro
- Servicio de Oftalmología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - C N González Castaño
- Servicio de Oftalmología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - S Rodríguez Villa
- Servicio de Oftalmología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - M García Fernández
- Servicio de Oftalmología, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| |
Collapse
|
14
|
Chen ZX, Zhao ZN, Sun Y, Jia WN, Zheng JL, Chen JH, Chen TH, Lan LN, Jiang YX. Phacoemulsification Combined With Supra-Capsular and Scleral-Fixated Intraocular Lens Implantation in Microspherophakia: A Retrospective Comparative Study. Front Med (Lausanne) 2022; 9:869539. [PMID: 35492301 PMCID: PMC9047048 DOI: 10.3389/fmed.2022.869539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/23/2022] [Indexed: 01/19/2023] Open
Abstract
BackgroundMicrospherophakia (MSP) is a rare ocular condition, the lens surgery of which is complicated by both insufficient zonules and undersized capsule.MethodsThis study included MSP eyes managed with phacoemulsification combined with supra-capsular and scleral-fixated intraocular lens implantation (SCSF-IOL) and made the comparison with those treated by transscleral-fixated modified capsular tension ring and in-the-bag intraocular lens implantation (MCTR-IOL).ResultsA total of 20 MSP patients underwent SCSF-IOL, and 17 patients received MCTR-IOL. The postoperative best corrected visual acuity was significantly improved in both groups (P < 0.001), but no difference was found between the groups (P = 0.326). The IOL tilt was also comparable (P = 0.216). Prophylactic Nd:YAG laser posterior capsulotomy was performed 1 week to 1 month after the SCSF-IOL procedure. In the SCSF-IOL group, two eyes (10.00%) needed repeated laser treatment and one eye (5.00%) had a decentered capsule opening. Posterior capsule opacification was the most common complication (6, 35.29%) in the MCTR group. No IOL dislocation, secondary glaucoma, or retinal detachment was observed during follow-up.ConclusionsSCSF-IOL is a viable option for managing MSP and is comparable with the MCTR-IOL. Nd:YAG laser posterior capsulotomy was necessary to prevent residual capsule complications after the SCSF-IOL procedure.
Collapse
Affiliation(s)
- Ze-Xu Chen
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Zhen-Nan Zhao
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Yang Sun
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Wan-Nan Jia
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Jia-Lei Zheng
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Jia-Hui Chen
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Tian-Hui Chen
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Li-Na Lan
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Yong-Xiang Jiang
- Eye Institute and Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
- *Correspondence: Yong-Xiang Jiang
| |
Collapse
|
15
|
João MD, Costa JV, Sousa K, Monteiro T, Lopes N, Calvão-Santos G, Cruz C, Vaz F. Visual and refractive outcomes following secondary intraocular lens implantation. Semin Ophthalmol 2022; 37:619-625. [PMID: 35245158 DOI: 10.1080/08820538.2022.2046805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE To analyze the visual and refractive results after secondary IOL implantation using different surgical techniques - iris-claw aphakic IOL through a corneal incision or scleral tunnel, and 3-piece IOL into the ciliary sulcus. PATIENTS AND METHODS Retrospective study including patients that were submitted to secondary IOL implantation from January 2017 to December 2019 at the Department of Ophthalmology of Hospital de Braga, Portugal. We collected demographic data (age, surgical indication, comorbidities, surgical technique, IOL implanted, and intra and postoperative complications) and visual and refractive data [preoperative and 3-month, 6-month, and 12-month postoperative corrected-distance visual acuity (CDVA), spherical equivalent (SE), manifest cylinder, and intraocular pressure]. RESULTS 128 eyes from 123 patients were included. The most frequent surgical indications were IOL subluxation/luxation (62.5%) and intraoperative posterior capsular rupture (23.4%). CDVA improved from 1.26 ± 0.51 to 0.47 ± 0.49 logMar (p < .001). CDVA was significantly better in the 3-piece into the ciliary sulcus IOL group than both other groups. The final SE was -0.68 ± 0.94 diopters. The mean manifest refractive cylinder remained stable until the 6th month after the surgery (p = .454) and improved in the last 6 months of follow-up (p = .015). In the postoperative period, the cylinder was higher in the corneal incision iris-claw aphakic IOL group and lower in the 3-piece IOL into the ciliary sulcus group (p < 0,05). The corneal incision iris-claw aphakic IOL group presented the most postoperative complications. CONCLUSION All techniques showed satisfying results. The 3-piece IOL into the ciliary sulcus group showed the best visual and refractive performance, followed by the scleral tunnel iris-claw IOL group and the corneal incision iris-claw IOL group.
Collapse
Affiliation(s)
| | | | - Keissy Sousa
- Ophthalmology Department, Hospital de Braga, Braga, Portugal
| | - Tiago Monteiro
- Ophthalmology Department, Hospital de Braga, Braga, Portugal
| | - Nuno Lopes
- Ophthalmology Department, Hospital de Braga, Braga, Portugal
| | | | - Carlos Cruz
- Ophthalmology Department, Hospital de Braga, Braga, Portugal
| | - Fernando Vaz
- Ophthalmology Department, Hospital de Braga, Braga, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
| |
Collapse
|
16
|
Anterior Versus Retropupillary Iris-Claw Intraocular Lens: Indications, Visual Outcome and Postoperative Complications. Ophthalmol Ther 2022; 11:771-784. [PMID: 35149965 PMCID: PMC8927565 DOI: 10.1007/s40123-022-00474-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/26/2022] [Indexed: 11/03/2022] Open
Abstract
Introduction In cases of inadequate capsular support for intraocular lens (IOL) implantation, iris-claw IOL is a practical option. Iris-claw IOL can be implanted anteriorly or retropupillary. In this study, we compare the outcome of implantation of iris-claw IOL between anterior and retropupillary locations.
Methods We retrospectively examined the characteristics and outcomes of patients who underwent iris-claw “Artisan®” intraocular lens implantation (IOL) during the period of January 2014 to July 2020. The study population included all patients who underwent iris-claw IOL implantation, whether as a primary or secondary implantation, regardless of the causative indication. The study population was categorized by location of implantation and indication. The outcome was compared by visual acuity and postoperative complications. Results In this study, 171 eyes of 151 patients were included. Iris-claw IOL was implanted anteriorly in 110 (64.3%) eyes. The most common indication for iris-claw IOL was complicated cataract surgery, followed by ectopia lentis and by trauma. Patients with retropupillary position achieved better visual outcome whatever the causative indication. Anterior iris-claw IOL patients had more high intraocular pressure readings and macular edema. Conclusions This study revealed that retropupillary iris-claw IOL may achieve better visual outcome without significant postoperative complications. Further prospective studies and trials on larger sample sizes are needed.
Collapse
|
17
|
Zyablitskaya M, Hong E, Chen RWS, Chang S, Suh LH. Outcomes of four-point suture fixated and two-point sutureless posterior chamber IOLs combined with pars plana vitrectomy. BMC Ophthalmol 2022; 22:57. [PMID: 35123431 PMCID: PMC8818229 DOI: 10.1186/s12886-022-02290-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 01/13/2022] [Indexed: 11/16/2022] Open
Abstract
Background While each scleral fixation method has its own advantages, there is a lack of strong evidence to suggest a superior technique. Advances in cataract surgery expand patient eligibility for successful cataract extraction, benefitting a growing population of pseudophakic patients. However, implantation of secondary intraocular lens (IOL) with compromised anterior or posterior capsule is a more challenging task. Each method of scleral fixation has its own advantages and none of them has strong evidence to be superior. This paper describes postsurgical outcomes of two scleral intraocular(IOL) fixation techniques combined with pars plana vitrectomy(PPV) from a single tertiary referral eye center. Methods Patients underwent PPV and IOL implantation with either four-point sutured scleral fixation (Akreos AO60(AK); n = 24) or two-point sutureless flanged intrascleral fixation (CT Lucia(CTL); n = 7). Reports include IOL and sclerotomy placement, fixation techniques, and IOL model. Results Thirty-one eyes of thirty patients were analyzed. Average change in vision from baseline measurement was LogMAR − 0.68 ± 0.66 and − 0.90 ± 0.63 for AK and CTL groups, respectively. Average postoperative refractive error was − 0.3 ± 1.03 D (AK) and 0.4 ± 0.60 D (CTL). No opacification cases of Akreos lens were found in this study with the longest follow up of 53 months. Conclusions Both methods of implantation (sutured and sutureless) could provide good visual and refractive outcomes. Minimal complication rates were reported despite including patients with multiple comorbidities, making both techniques an attractive choice for secondary IOL implantation.
Collapse
|
18
|
Drolsum L, Kristianslund O. Implantation of retropupillary iris-claw lenses: A review on surgical management and outcomes. Acta Ophthalmol 2021; 99:826-836. [PMID: 33683012 DOI: 10.1111/aos.14824] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/06/2021] [Accepted: 02/08/2021] [Indexed: 12/18/2022]
Abstract
Iris-claw lenses have gained increasing popularity over the last years and are by many surgeons regarded as viable options in eyes with insufficient capsular or zonular support. The iris-claw lens has two haptics with fine fissures for folding (enclavating) the mid-peripheral part of the iris stroma and can either be placed in front of or posterior to the iris. In particular, the retropupillary implantation has been increasingly chosen probably due to having an anatomical position similar to that of the crystalline lens. The present review is based on a literature review and also on the authors' clinical experience with this lens, and it focuses on surgical techniques and outcomes especially related to the characteristics of this lens, having haptics with claws that fixate the lens to the posterior iris. Implanting retropupillary iris-claw lenses has a relatively short learning curve, and there are only few complications reported during surgery. Retropupillary iris-claw lenses have demonstrated generally favourable efficiency and safety. However, the outcomes are probably more influenced by the reason for surgery and eye comorbidity than the lens itself. Albeit seldom reported, the postoperative complications have mostly been related to atrophy of the iris at the site of the haptics, or IOL decentration or disenclavation of one of the haptics. To date, however, there are few randomized clinical trials comparing this lens to other lens alternatives in eyes exhibiting insufficient capsular or zonular support for placing the lens in the ciliary sulcus. In the future, prospective studies with large samples should be performed to gain insights into the long-term safety of retropupillary placed iris-claw lenses, and for comparisons with the various other techniques of lens fixation.
Collapse
Affiliation(s)
- Liv Drolsum
- Department of Ophthalmology Oslo University Hospital Oslo Norway
- Institute of Clinical Medicine University of Oslo Oslo Norway
| | - Olav Kristianslund
- Department of Ophthalmology Oslo University Hospital Oslo Norway
- Institute of Clinical Medicine University of Oslo Oslo Norway
| |
Collapse
|
19
|
Sun Y, Hammer M, Yildirim TM, Khoramnia R, Auffarth GU. Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation. Sci Rep 2021; 11:21436. [PMID: 34728749 PMCID: PMC8564516 DOI: 10.1038/s41598-021-01051-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/12/2021] [Indexed: 11/09/2022] Open
Abstract
An Intraocular Lens (IOL) fixated on the iris either anteriorly, as a phakic IOL, or posteriorly, as an aphakic IOL, can influence pupil motility. In this interventional case series study, we evaluated pupil size under different levels of illumination (scotopic = 0.04 lx, low-mesopic = 0.4 lx and high-mesopic = 4 lx) for anterior iris-claw IOL fixation for correcting myopia or hyperopia (IFPH), retropupillary iris-claw IOL fixation to correct aphakia or as treatment for late in-the-bag IOL dislocation/subluxation (IFRP), and capsular-fixation IOL in-the-bag implantation (IB). Pupil size was measured preoperatively for the IFPH- and IB-group as well as 6 months after surgery for all groups. We analyzed a total of 70 eyes: 22 eyes of 11 patients with phakic IOLs, 22 eyes of 20 patients in the IFRP group and 26 eyes of 13 patients in the IB group. Both IFPH and IB showed a smaller postoperative scotopic pupil size, compared with the preoperative values. When compared to postoperative values of IB and IFPH, IFRP showed a significantly smaller postoperative scotopic pupil size (IFPH: 5.89 ± 0.83 mm, IFRP: 4.37 ± 0.83 mm, IB: 5.34 ± 0.98 mm, p < 0.001) while no differences were seen at high-mesopic lighting. Neither of the surgical techniques seems to impair the constriction of the pupil.
Collapse
Affiliation(s)
- Yanxiu Sun
- Department of Ophthalmology, Peking University Third Hospital, Northgarden Road 49, Haidian District, Beijing, 100191, China.,International Vision Correction Research Centre (IVCRC), Department of Ophthalmology, Ruprecht-Karls University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Maximilian Hammer
- International Vision Correction Research Centre (IVCRC), Department of Ophthalmology, Ruprecht-Karls University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Timur M Yildirim
- International Vision Correction Research Centre (IVCRC), Department of Ophthalmology, Ruprecht-Karls University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Ramin Khoramnia
- International Vision Correction Research Centre (IVCRC), Department of Ophthalmology, Ruprecht-Karls University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Gerd U Auffarth
- International Vision Correction Research Centre (IVCRC), Department of Ophthalmology, Ruprecht-Karls University of Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
| |
Collapse
|
20
|
Shahid SM, Flores-Sánchez BC, Chan EW, Anguita R, Ahmed SN, Wickham L, Charteris DG. Scleral-fixated intraocular lens implants-evolution of surgical techniques and future developments. Eye (Lond) 2021; 35:2930-2961. [PMID: 34117388 PMCID: PMC8526814 DOI: 10.1038/s41433-021-01571-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 04/07/2021] [Accepted: 04/21/2021] [Indexed: 11/08/2022] Open
Abstract
Varied options are available for the implantation of secondary intraocular lens implants in the absence of zonular or capsular support. Loss of the capsule can occur in the context of complicated cataract surgery, trauma or inherited conditions such as Marfan syndrome or pseudoexfoliation. Approaches to overcome this include optical measures such as the use of spectacles or contact lenses, and surgical therapy incorporating the use of anterior chamber, iris-fixated or scleral-fixated lenses. Surgical techniques to implant scleral-fixated lenses have undergone various modifications, since the first publication of sutured intrascleral fixation described in the 1980s. However, despite the advances in surgical techniques, studies are limited either by their retrospective nature, small sample size and most importantly small duration of follow-up. This comprehensive review aims to amalgamate the evolution of various surgical techniques with regards to intrascleral lens fixation and suggests areas for future development.
Collapse
Affiliation(s)
- S M Shahid
- Vitreoretinal Service, Moorfields Eye Hospital, London, UK.
| | | | - E W Chan
- Vitreoretinal Service, Moorfields Eye Hospital, London, UK
| | - R Anguita
- Vitreoretinal Service, Moorfields Eye Hospital, London, UK
| | - S N Ahmed
- Ophthalmology Department, Northampton General Hospital, Cliftonville, Northampton, UK
| | - L Wickham
- Vitreoretinal Service, Moorfields Eye Hospital, London, UK
| | - D G Charteris
- Vitreoretinal Service, Moorfields Eye Hospital, London, UK
- UCL Institute of Ophthalmology, London, UK
| |
Collapse
|
21
|
RETROPUPILLARY IRIS-CLAW INTRAOCULAR LENS AND PARS PLANA VITRECTOMY IN APHAKIA MANAGEMENT: A National Multicenter Audit. Retina 2021; 41:2048-2058. [PMID: 33675333 DOI: 10.1097/iae.0000000000003161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To evaluate the outcomes and safety of retropupillary iris-claw intraocular lens implantation and associated pars plana vitrectomy. METHODS Multicenter, national audit of 325 eyes (325 patients). Demographics, surgical details, and complications are described. Visual acuity, intraocular pressure, and central retinal thickness assessed by optical coherence tomography were collected at 1, 3, 6, and 12 months after surgery. Kaplan-Meier curves were created to assess the cumulative probability of postoperative visual acuity and intraocular pressure levels, macular edema development, and corneal decompensation. RESULTS The cumulative probability of the final visual acuity ≤0.3 logarithm of the minimum angle of resolution (≥20/40 Snellen) was 75.6% at 12-month follow-up. The probability of intraocular pressure >21, ≥25, and ≥30 mmHg was 48.1%, 33.1%, and 19.0%, and the probability of intraocular pressure-lowering drops was 50.9% at 12 months. Glaucoma surgery was required in 4.3% of the eyes (14/325). The cumulative probability of macular edema was 20.5% at 12 months and was greater in complicated cataract surgery than in intraocular lens-luxation eyes (26% vs. 16.7%, P = 0.04). Corneal transplantation was required in 2.8% of the eyes (9/325). CONCLUSION This study on 325 eyes with aphakia or intraocular lens dislocation managed with the retropupillary iris-claw intraocular lens technique provides clinical outcomes in a real-world scenario, reporting relevant data for patient counseling and preoperative discussions.
Collapse
|
22
|
Zweifel SA, Wiest MRJ, Toro MD, Hasler P, Maloca P, Hasse B, Khanna N, Rejdak R. Long-Term Clinical and Multimodal Imaging Findings in Patients with Disseminated Mycobacterium Chimaera Infection. J Clin Med 2021; 10:jcm10184178. [PMID: 34575289 PMCID: PMC8464780 DOI: 10.3390/jcm10184178] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 11/16/2022] Open
Abstract
Background: To analyze long-term ophthalmic clinical and multimodal imaging findings of disseminated Mycobacterium (M.) chimaera infection after cardiothoracic surgery among the Swiss Cohort. Methods: Systemic and multimodal ophthalmic imaging and clinical findings including rate of recurrence were reviewed and correlated to a previously proposed classification system of choroidal lesions and classification of ocular disease. Main Outcomes Measures: long-term clinical and multimodal ocular imaging findings of M. chimaera. Results: Twelve patients suffering from systemic infection from M. chimaera were included. Mean age at the first ophthalmic examination was 59 years (range from 48 to 66 years). Mean duration of the follow-up was 22.63 ± 17.8 months. All patients presented with bilateral chorioretinal lesions at baseline; 5 patients had additional signs, including optic disc swelling (2), choroidal neovascularization (1), retinal neovascularization (1) and cilioretinal vascular occlusion (1). Four recurrence events after discontinuation or adjustment of the antibiotic treatment were observed. Progressive choroiditis was seen in 5 patients under treatment, 4 of them deceased. Conclusions: Expertise from ophthalmologists is not only relevant but also critical for the assessment of the adverse drug effect of antimycobacterial treatment along with monitoring therapeutic response and identifying recurrences.
Collapse
Affiliation(s)
- Sandrine Anne Zweifel
- Department of Ophthalmology, University Hospital Zurich, 8091 Zurich, Switzerland; (M.R.J.W.); (M.D.T.)
- Department of Ophthalmology, University of Zurich, 8091 Zurich, Switzerland
- Correspondence:
| | - Maximilian Robert Justus Wiest
- Department of Ophthalmology, University Hospital Zurich, 8091 Zurich, Switzerland; (M.R.J.W.); (M.D.T.)
- Department of Ophthalmology, University of Zurich, 8091 Zurich, Switzerland
| | - Mario Damiano Toro
- Department of Ophthalmology, University Hospital Zurich, 8091 Zurich, Switzerland; (M.R.J.W.); (M.D.T.)
- Department of Ophthalmology, University of Zurich, 8091 Zurich, Switzerland
- Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20079 Lublin, Poland;
| | - Pascal Hasler
- Institute of Molecular and Clinical Ophthalmology Basel, 4023 Basel, Switzerland; (P.H.); (P.M.)
- Department of Ophthalmology, University Hospital Basel, 4023 Basel, Switzerland
| | - Peter Maloca
- Institute of Molecular and Clinical Ophthalmology Basel, 4023 Basel, Switzerland; (P.H.); (P.M.)
- Department of Ophthalmology, University Hospital Basel, 4023 Basel, Switzerland
| | - Barbara Hasse
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, 8091 Zurich, Switzerland;
| | - Nina Khanna
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, 4023 Basel, Switzerland;
| | - Robert Rejdak
- Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20079 Lublin, Poland;
| |
Collapse
|
23
|
One Year Outcomes and Stability of a Novel Scleral Anchored Intraocular Lens. J Ophthalmol 2021; 2021:3838456. [PMID: 34484813 PMCID: PMC8413050 DOI: 10.1155/2021/3838456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 08/05/2021] [Indexed: 11/17/2022] Open
Abstract
Purpose To assess one year results and stability of the implantation of a scleral anchored intraocular lens (IOL). Design Interventional prospective case series. Methods Sixty eyes of 60 patients affected by either aphakia or IOL dislocation were included in this study. Patients underwent vitrectomy, scleral fixation of the IOL, and, if present, dislocated IOL removal. Patients were evaluated preoperatively and at 1, 3, 6, and 12 months after surgery by best-corrected distance visual acuity (BCVA) assessment, intraocular pressure (IOP) measurement, corneal specular microscopy, and optical coherence tomography (OCT) of both the macula and anterior segment. Results At twelve months, mean BCVA significantly improved (p < 0.0001), and none of the patients experienced a decrease of visual acuity. A 10% decrease of endothelial cell count occurred after surgery. Cystoid macular edema occurred in three patients (5%). A transient increase of intraocular pressure was noted in 7 cases (12%). At one month, horizontal and vertical IOL tilt was 1.04 ± 0.87 and 0.74 ± 0.71 degrees, respectively, and did not significantly change in the follow-up (p > 0.05). None of the patients had decentration or dislocation of scleral-fixated IOL during the follow-up. Conclusion Implantations of scleral plug fixated IOL provide good visual results, low complication rate, and excellent stability of the lens until one-year follow-up.
Collapse
|
24
|
Hsieh TH, Yu HJ, Yang IH, Ho RW, Hsiao YT, Fang PC, Kuo MT. Simultaneously Monitoring Whole Corneal Injury with Corneal Optical Density and Thickness in Patients Undergoing Cataract Surgery. Diagnostics (Basel) 2021; 11:diagnostics11091639. [PMID: 34573979 PMCID: PMC8471687 DOI: 10.3390/diagnostics11091639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 02/05/2023] Open
Abstract
To pursue the least corneal implication during cataract surgery, this study aimed to monitor corneal wound injury after cataract surgery with a novel method. The prospective cohort study involved thirty-two patients, who were assessed by a Scheimpflug tomography AxL® (Oculus GmbH, Wetzlar, Germany) via the following two kinds of indices: whole corneal optical density (COD) and corneal thickness (CT), two weeks before and one month after cataract surgery. The results of the COD revealed that corneal annuli 0.0–2.0 mm and 2.0–6.0 mm, and the average and maximal values at the incisional site significantly increased postoperatively. Also, the anterior and central stroma of 0.0–2.0 mm, and all three depths of 2.0–6.0 mm, increased remarkably after the operation. For the CT, all ranges of diameters plus incisional sites showed significant increases postoperatively. Furthermore, we analyzed the differences (delta) of COD and CT between pre- and post-operation, and found significant correlations between the delta of COD and the delta of CT, regarding annuli 0.0–2.0 mm, 2.0–6.0 mm, and 6.0–10.0 mm, but no correlation at the incisional site, with either average density or maximal density, was detected. We concluded that whole COD and CT, especially at the central zones of the cornea (annulus < 6 mm), are both valuable parameters in the assessment of corneal damage post-cataract surgery, and are independent indices at the incisional site.
Collapse
Affiliation(s)
- Tzu-Han Hsieh
- Department of Medical Education, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung City 83301, Taiwan;
| | - Hun-Ju Yu
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (H.-J.Y.); (I.-H.Y.); (R.-W.H.); (Y.-T.H.)
| | - I-Hui Yang
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (H.-J.Y.); (I.-H.Y.); (R.-W.H.); (Y.-T.H.)
| | - Ren-Wen Ho
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (H.-J.Y.); (I.-H.Y.); (R.-W.H.); (Y.-T.H.)
| | - Yu-Ting Hsiao
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (H.-J.Y.); (I.-H.Y.); (R.-W.H.); (Y.-T.H.)
| | - Po-Chiung Fang
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (H.-J.Y.); (I.-H.Y.); (R.-W.H.); (Y.-T.H.)
- Correspondence: (P.-C.F.); (M.-T.K.)
| | - Ming-Tse Kuo
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung City 83301, Taiwan; (H.-J.Y.); (I.-H.Y.); (R.-W.H.); (Y.-T.H.)
- Correspondence: (P.-C.F.); (M.-T.K.)
| |
Collapse
|
25
|
Kim H, Jeon S. Refractive Outcomes of Retropupillary Fixated Iris-Claw Lens for Exchange of the Dislocated Intraocular Lens Using Modified Scleral Incisions. Clin Ophthalmol 2021; 15:3379-3389. [PMID: 34413626 PMCID: PMC8370492 DOI: 10.2147/opth.s324983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/26/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose To evaluate refractive outcomes after retropupillary iris-claw intraocular lens (IOL) implantation and to compare postoperative astigmatism from (1) a conventional 5.5-mm sclerocorneal incision, (2) an L-shaped scleral tunnel incision, and (3) a frown scleral tunnel incision. Methods This was a retrospective study of eyes undergoing dislocated IOL exchange for a retropupillary iris-claw IOL. Uncorrected and corrected distance visual acuity (UDVA and CDVA) and postoperative complications were evaluated until postoperative months 24. The refractive outcomes and the surgically induced astigmatism (SIA) vector were compared between groups. Results The medical records of 107 eyes from 107 patients with mean age of 65.31 ± 12.15 years were reviewed. Eyes with a frown incision showed the best UDVA, followed by those with L-shaped and conventional incisions (P = 0.003). Eyes with an L-shaped incision or frown incision had a lower SIA than that of the conventional incision group at postoperative 6 months (mean ± standard deviation [SD] SIA, 0.86 ± 0.85 D, 0.63 ± 0.37 D, and 1.70 ± 1.27 D for frown incision, L-shaped incision, and conventional incisions, respectively; P = 0.004). Conclusion The frown incision and L-shaped incision induced a significantly smaller SIA than the conventional incisions, which was associated with better UDVA postoperatively.
Collapse
Affiliation(s)
- Hyungil Kim
- Gyeongju St. Mary's Eye Clinic, Gyeongju-si, Gyeongsangbuk-do, Republic of Korea
| | - Sohee Jeon
- Keye Eye Center, Seoul, Republic of Korea
| |
Collapse
|
26
|
Asif MI, Bafna RK, Kapoor A, Sharma N. Intrascleral haptic fixation for haptic exposure after Yamane technique. BMJ Case Rep 2021; 14:e243627. [PMID: 34404655 PMCID: PMC8375743 DOI: 10.1136/bcr-2021-243627] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2021] [Indexed: 11/03/2022] Open
Abstract
A 55-year-old patient presented with exposure of both the haptics beyond the conjunctiva of the scleral fixated multipiece intraocular lens (IOL). Two diagonally opposite scleral pockets were created, and the exposed haptics was redirected and repositioned aseptically into these pockets to facilitate intrascleral fixation. Herein, we report a simple rescue method for management of exposed haptic after Yamane technique of scleral fixated IOL.
Collapse
Affiliation(s)
| | - Rahul Kumar Bafna
- Ophthalmology, R P Centre for Ophthalmic Sciences, AIIMS, New Delhi, Delhi, India
| | - Anirudh Kapoor
- Ophthalmology, R P Centre for Ophthalmic Sciences, AIIMS, New Delhi, Delhi, India
| | - Namrata Sharma
- Ophthalmology, R P Centre for Ophthalmic Sciences, AIIMS, New Delhi, Delhi, India
| |
Collapse
|
27
|
Liang IC, Chang YH, Hernández Martínez A, Hung CF. Iris-Claw Intraocular Lens: Anterior Chamber or Retropupillary Implantation? A Systematic Review and Meta-Analysis. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:785. [PMID: 34440990 PMCID: PMC8398260 DOI: 10.3390/medicina57080785] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 11/17/2022]
Abstract
Background and Objectives: Iris-claw intraocular lens (ICIOL) could be implanted in the anterior chamber (AC) or retropupillary (RP) in eyes lacking capsular and/or zonular support. Several studies have focused on comparing the efficacy and complications of these two techniques and we designed this research to review the published literatures. Materials and Methods: Peer-reviewed studies were collected through network databases (PubMed, Scopus, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov) and analyzed. The primary outcome was the standardized mean differences (SMDs) of pre- and post-operative corrected distant visual acuity (CDVA). The secondary outcome was the SMDs of pre- and post-operative intraocular pressure (IOP), endothelial cell counts (ECC), and the odds ratios (ORs) of post-operative IOP elevation and cystoid macular edema (CME). Comprehensive Meta-Analysis software was utilized to conduct statistical analysis. Results: Six studies (one randomized controlled trial and five retrospective case series) were relevant and included a total of 516 eyes (255 and 261 eyes in the AC ICIOL and RP ICIOL groups, respectively). The quantitative analysis showed no significant differences in CDVA (SMD: 0.164, 95% confidence interval (CI): -0.171 to 0.500), ECC (SMD: -0.011, 95% CI: -0.195 to 0.173), and IOP elevation events (OR: 0.797, 95% CI: 0.459 to 1.383). Lesser IOP reduction (SMD: 0.257, 95%CI: 0.023 to 0.490) and a relative increase in the incidence of CME (OR:2.315, 95% CI: 0.950 to 5.637) were observed in the AC ICIOL group compared with RP ICIOL group. Conclusions: Our meta-analysis indicated that AC and RP ICIOL seem to have equivalent visual outcomes. RP ICIOL may perform slightly better with more IOP reduction and lesser CME. More randomized controlled trials, which have higher patient participation and more outcomes are needed to confirm our conclusions.
Collapse
Affiliation(s)
- I-Chia Liang
- National Defense Medical Center, Department of Ophthalmology, Tri-Service General Hospital, Taipei 11490, Taiwan; (I.-C.L.); (Y.-H.C.)
- Program in Nutrition and Food Science, Fu Jen University, New Taipei City 24205, Taiwan
| | - Yun-Hsiang Chang
- National Defense Medical Center, Department of Ophthalmology, Tri-Service General Hospital, Taipei 11490, Taiwan; (I.-C.L.); (Y.-H.C.)
| | | | - Chi-Feng Hung
- School of Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
- Program in Pharmaceutical Biotechnology, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| |
Collapse
|
28
|
Clinical outcome and endothelial loss following prepupillary and retropupillary implantation of iris claw intraocular lenses. Int Ophthalmol 2021; 41:3961-3969. [PMID: 34324103 DOI: 10.1007/s10792-021-01965-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 07/16/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Iris claw intraocular lenses (IOLs) were successfully used for the management of aphakia in patients that lack capsular support. The aim of this study was to compare the clinical outcome of prepupillary and retropupillary implantation of these IOLs. METHODS The files of the 26 patients that had an iris claw IOL implantation between 2010 and 2020 were retrospectively reviewed. Detailed ophthalmological examination findings including corrected distance visual acuity (CDVA), intraocular pressure, endothelial cell counts, slit lamp and dilated fundus examination findings were specifically tabulated. Intraoperative and postoperative complications were also specifically recorded. RESULTS There were 18 patients in the prepupillary implantation group and eight patients in the retropupillary implantation group. Age and gender distribution were similar between the groups. CDVA significantly increased in prepupillary and retropupillary implantation groups (p = 0.001 and p = 0.012, respectively). Median endothelial cell loss was 6.7% in prepupillary group and 7.2% in retropupillary group. The only intraoperative complication was iridodialysis (n = 1). Postoperative complications included retinal detachment (n = 1), cystoid macular edema (n = 2) and IOL tilt (n = 1). All of these complications occurred in the prepupillary implantation group. CONCLUSION Prepupillary and retropupillary implantation of iris claw IOLs resulted with similar visual gain and endothelial loss rates in a follow-up time of 6 months. There was an insignificant trend toward a reduced complication rate following retropupillary implantation.
Collapse
|
29
|
Kristianslund O, Dalby M, Drolsum L. Late in-the-bag intraocular lens dislocation. J Cataract Refract Surg 2021; 47:942-954. [PMID: 33750091 DOI: 10.1097/j.jcrs.0000000000000605] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 01/05/2021] [Indexed: 12/21/2022]
Abstract
This review aimed to evaluate the cumulative incidence, patient characteristics, predisposing conditions, and treatment outcomes for late in-the-bag intraocular lens (IOL) dislocation. Literature searches in PubMed (MEDLINE), Embase, and Cochrane Library Central database identified 1 randomized clinical trial, 1 prospective case series, 2 prospective cohort studies, and 36 retrospective studies of this condition, which showed that the cumulative incidence was 0.5% to 3%, it occurred on average 6 to 12 years after cataract surgery, and mean patient age was 65 to 85 years. Pseudoexfoliation syndrome, myopia, and previous vitreoretinal surgery were the most common predisposing conditions. Studies indicated that IOL repositioning and IOL exchange provided similar visual outcomes and were equally safe. The long-term visual outcome seemed satisfactory. However, the quality of evidence regarding treatment was in general quite low. More studies of late in-the-bag IOL dislocation are needed, and in particular, different surgical techniques should be included in high-quality clinical trials.
Collapse
Affiliation(s)
- Olav Kristianslund
- From the Department of Ophthalmology, Oslo University Hospital, Oslo Norway (Kristianslund, Dalby, Drolsum); Institute of Clinical Medicine, University of Oslo, Oslo, Norway (Kristianslund, Dalby, Drolsum)
| | | | | |
Collapse
|
30
|
Thulasidas M. Retropupillary Iris-Claw Intraocular Lenses: A Literature Review. Clin Ophthalmol 2021; 15:2727-2739. [PMID: 34211261 PMCID: PMC8240859 DOI: 10.2147/opth.s321344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 06/11/2021] [Indexed: 01/02/2023] Open
Abstract
Retropupillary iris-claw intraocular lenses (ICIOLs) have been increasingly chosen by surgeons nowadays as a primary or secondary procedure of IOL implantation in eyes with insufficient capsular or zonular support. They have gained popularity due to their simple fast technique, favourable functional outcomes, and safety. The transition in the ICIOL fixation from prepupillary to a more biologically appropriate retropupillary position and change in the optic design from biconvex to convex-concave have provided better visual outcomes and improved safety. A peer-reviewed literature search was conducted in Medline (PubMed), Embase, and Cochrane Library using the keywords "retropupillary iris claw" and "iris claw". The search yielded 310 articles that were screened. Forty-three articles on retropupillary ICIOLs were finally found to be relevant and reviewed in full-text versions. The functional outcomes following retropupillary implantation of ICIOLs have been acceptable in eyes with no ocular co-morbidities otherwise. However, the indications for surgery may affect the outcomes. The major postoperative complications directly associated with ICIOLs include pupil ovalization and redislocation. Nevertheless, the rate of disenclavation depends on the experience and skill of the surgeon. This review is based on a literature review, and it focuses on the preoperative evaluation, surgical technique, postoperative outcomes, and associated complications. Prospective randomized trials with a larger sample size and longer follow-up are needed for comparison with other techniques of IOL fixation and confirmation of long-term safety profile.
Collapse
Affiliation(s)
- Mithun Thulasidas
- Cataract and Glaucoma services, Sankara Eye Hospital, Coimbatore, Tamil Nadu, 641035, India
| |
Collapse
|
31
|
Refractive errors after sutureless intrascleral fixation of intraocular lens. Graefes Arch Clin Exp Ophthalmol 2021; 259:3003-3009. [PMID: 34142189 DOI: 10.1007/s00417-021-05268-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 05/29/2021] [Accepted: 06/02/2021] [Indexed: 10/21/2022] Open
Abstract
PURPOSE To determine the difference between the attempted and the achieved postoperative refractive error after sutureless intrascleral fixation of the haptics of an implanted intraocular lens (IOL). PATIENTS AND METHODS This was a retrospective study of the medical charts of patients who had undergone sutureless intrascleral fixation of an IOL. The IOLs were fixed by inserting the haptics into scleral tunnels with or without flanges. The differences between the attempted and achieved postoperative refractive error (spherical equivalent) were determined. The relationships between the surgical options and the differences of the refractive error and degree of astigmatism were also determined. RESULTS Two hundred and twenty-three eyes were studied. There was a myopic shift of - 0.38 ± 1.13 diopters (D). The mean of the differences between the achieved postoperative and the attempted refractive error was 0.89 ± 0.79 D. The achieved refractive error was significantly correlated with the attempted refractive error (P < 0.001, R2 = 0.631). The surgical procedures selected were not significantly associated with the differences between the attempted and achieved refractive error. The size of sclerocorneal incision and presence of sutures were significantly associated with the final degree of astigmatism (P = 0.006 and 0.008, respectively). CONCLUSIONS The postoperative refractive error was significantly correlated with the attempted refractive error after intrascleral fixation of an IOL. The wound construction was associated with the postoperative degree of astigmatism.
Collapse
|
32
|
Nowomiejska K, Haszcz D, Onyszkiewicz M, Choragiewicz T, Czarnek-Chudzik A, Szpringer-Wabicz A, Baltaziak K, Brzozowska A, Toro MD, Rejdak R. Double-Needle Yamane Technique Using Flanged Haptics in Ocular Trauma-A Retrospective Survey of Visual Outcomes and Safety. J Clin Med 2021; 10:jcm10122562. [PMID: 34207903 PMCID: PMC8228832 DOI: 10.3390/jcm10122562] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/29/2021] [Accepted: 06/06/2021] [Indexed: 01/01/2023] Open
Abstract
To evaluate visual outcomes and safety of the double-needle technique using flanged haptics (Yamane technique) in patients with aphakia caused by ocular trauma at a trauma referral center. Retrospective: Consecutive interventional case series of 30 patients who underwent the Yamane technique due to posttraumatic aphakia. The double-needle technique using flanged haptics was combined with anterior vitrectomy (group A) in 14 patients, and with pars plana vitrectomy (PPV) (group B) due to retinal detachment, nucleus dislocation into the vitreous cavity, or intraocular lens (IOL) displacement in 16 patients. No intraoperative complications were noted. There was significant improvement in the visual acuity in both groups at the second postoperative visit. However, the visual acuity was significantly worse in the group treated with the Yamane technique combined with PPV. Silicone oil tamponade in PPV group was associated with worse visual acuity, whereas post lensectomy status was associated with poor visual function result in the anterior vitrectomy group. There was one case of slight IOL decentration and one retinal detachment during the postoperative follow-up period in the group with PPV. In this case series, the Yamane technique applied in traumatized eyes was found to be an efficacious and safe procedure. Combining the Yamane technique with PPV due to posterior segment ocular trauma was associated with worse functional results in the follow-up at three months. Further studies with longer follow-up evaluations are required to verify long-term complications.
Collapse
Affiliation(s)
- Katarzyna Nowomiejska
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
- Correspondence: ; Tel./Fax: +48-81-53-248-27
| | - Dariusz Haszcz
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
| | - Maksymilian Onyszkiewicz
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
| | - Tomasz Choragiewicz
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
| | - Aleksandra Czarnek-Chudzik
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
| | - Agata Szpringer-Wabicz
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
| | - Katarzyna Baltaziak
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
| | - Agnieszka Brzozowska
- Department of Mathematics and Medical Biostatistics, Medical University of Lublin, 20-059 Lublin, Poland;
| | - Mario Damiano Toro
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
- Faculty of Medicine, Collegium Medicum, Cardinal Stefan Wyszyński University, 01-815 Warsaw, Poland
| | - Robert Rejdak
- Chair and Department of General and Pediatric Ophthalmology, Medical University of Lublin, 20-059 Lublin, Poland; (D.H.); (M.O.); (T.C.); (A.C.-C.); (A.S.-W.); (K.B.); (M.D.T.); (R.R.)
| |
Collapse
|
33
|
Forlini M, Bedi R. Intraocular lens implantation in the absence of capsular support: scleral-fixated vs retropupillary iris-claw intraocular lenses. J Cataract Refract Surg 2021; 47:792-801. [PMID: 33278236 DOI: 10.1097/j.jcrs.0000000000000529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/30/2020] [Indexed: 12/17/2022]
Abstract
Cataract surgery via phacoemulsification with intraocular lens (IOL) placement in the capsular bag is the gold standard in the presence of adequate capsular support. However, when capsule and/or zonular fibers are weak or absent, alternate fixation strategies are required. Common alternative options include retropupillary iris-claw IOLs (RP-IC IOLs) and scleral-fixated IOLs (SF IOLs). In the present review of 87 articles with 2174 eyes implanted with RP-IC IOLs and 2980 eyes with SF IOLs, we discuss the published literature with respect to safety and efficacy. Although the studies reporting outcomes of these IOLs have been performed in patients with different concomitant conditions, visual and refractive outcomes were found to be comparable between RP-IC IOLs and SF IOLs. RP-IC IOL implantation seemed to provide equivalent or a potentially lower rate of complications than SF IOL implantation. Data from the literature also suggest that the surgical technique of RP-IC IOL implantation is relatively simpler with correspondingly shorter surgical times.
Collapse
Affiliation(s)
- Matteo Forlini
- From the Domus Nova Hospital, Ravenna, Italy (Forlini); Iris Advanced Eye Center, Chandigarh, India (Bedi)
| | | |
Collapse
|
34
|
Caporossi T, Tartaro R, Albani G, Barca F, Giansanti F, Rizzo S. Via pars plana anterior iris enclavation IOL fixation. Int J Ophthalmol 2021; 14:774-776. [PMID: 34012895 DOI: 10.18240/ijo.2021.05.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/26/2020] [Indexed: 11/23/2022] Open
Abstract
AIM To describe a via pars plana anterior iris enclavation intraocular lens (IOL) fixation technique. METHODS A total of 35 consecutive aphakic vitrectomised patients (average age 71.12±10.12y) underwent pars plana vitrectomy (PPV) and via pars plana anterior iris enclavation IOL fixation. RESULTS The mean preoperative best corrected visual acuity (BCVA) was 0.11±0.14 logMAR, the mean postoperative BCVA was 0.07±0.11 logMAR. The preoperative mean spherical equivalent was 7.22±4.21 D. The final mean spherical equivalent was -0.25±0.15 D. No eyes had hypotony, retinal or choroidal detachment or endophthalmitis. CONCLUSION This technique may be a safe and useful in the case of aphakia, and a prospective study would be useful to confirm this findings.
Collapse
Affiliation(s)
- Tomaso Caporossi
- Department of Surgical and Translational Medicine, Eye Clinic, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence 50139, Italy
| | - Ruggero Tartaro
- Department of Surgical and Translational Medicine, Eye Clinic, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence 50139, Italy
| | - Giancarlo Albani
- Department of Surgical and Translational Medicine, Eye Clinic, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence 50139, Italy
| | - Francesco Barca
- Department of Surgical and Translational Medicine, Eye Clinic, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence 50139, Italy
| | - Fabrizio Giansanti
- Department of Surgical and Translational Medicine, Eye Clinic, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence 50139, Italy
| | - Stanislao Rizzo
- Department of Surgical and Translational Medicine, Eye Clinic, University of Florence, Azienda Ospedaliera Universitaria Careggi, Florence 50139, Italy.,Department of Ophthalmology, Catholic University of Sacred-Heart Foundation "Policlinico Universitario A. Gemelli" IRCCS, Rome 00168, Italy
| |
Collapse
|
35
|
Iris-Claw Intraocular Lens Implantation in Various Clinical Indications: A 4-Year Study. J Clin Med 2021; 10:jcm10061199. [PMID: 33805747 PMCID: PMC7998776 DOI: 10.3390/jcm10061199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/06/2021] [Accepted: 03/10/2021] [Indexed: 11/30/2022] Open
Abstract
An iris-claw intraocular lens (IOL) has been widely used as a secondary implant in aphakic patients. The study presents the results of implanting the anterior chamber iris-claw Artisan IOL in cases of where an appropriate posterior capsular support is lacking. The study included 132 patients subjected to primary IOL implantation during complicated cataract surgery with damage to the posterior capsule (I), secondary implantation in aphakia (II), secondary implantation during penetrating keratoplasty (III), and secondary implantation during pars plana vitrectomy with luxated IOL extraction (IV). We analyzed the records of best-corrected visual acuity (BCVA), spherical equivalent (SE), intraocular pressure (IOP), and corneal endothelial cell count (cECC), taken before and 1, 2, 3, and 4 years after the surgery. BCVA depended on the time after IOL implantation and the primary indication. Four years post-surgery, the SE values were the lowest in group III. IOP was the same in all groups both before and after the surgery, but 4 years after the surgery IOP values in group IV were higher than in group III. The cECC decreased every year after the surgery in all groups, but four years after the IOL implantation, the lowest cECC values were observed in group IV. At the same time, all groups of patients showed improved BCVA, stable refraction, and a low percentage of postoperative complications.
Collapse
|
36
|
de Angelis L, Barca F, Rizzo S, Di Leo L, Oliverio L, Caporossi T. Trans-scleral plugs scleral fixation IOL and penetrating keratoplasty to restore vision in vitrectomized eyes. Eur J Ophthalmol 2021; 32:NP67-NP70. [PMID: 33567894 DOI: 10.1177/1120672121990634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To report the surgical outcomes of penetrating keratoplasty (PKP) and sutureless scleral fixation (SSF) using Carlevale Lens (Soleko) combined procedure to solve corneal failure and aphakia in vitrectomized eyes and discuss eventual advantages of this new approach. METHODS Two patients underwent primary wound repair and pars plana vitrectomy after a penetrating ocular trauma and were referred to the author's clinic. The PKP and SSF-Carlevale lens implantation were performed under retrobulbar anesthesia. Intraoperative and postoperative complications were recorded, intraocular lens positioning was evaluated using anterior segment optical coherence tomography (AS-OCT) and endothelial cell density was determined using an endothelial microscope. Both patients completed 12 months follow-up. RESULTS The surgery was performed without intraoperative complications. After 1 month, the lens was fixed well, and the graft showed no sign of rejection. At the last visit after 12 months, the corneal graft remained transparent with good endothelial cell density in both cases; conjunctival scarring or inflammation and plugs externalization did not occur during follow-ups. Best-corrected visual acuity was 4/10 Snellen in the first case, while in the second case, we witnessed a limited visual recovery of 1/20 Snellen due to retinal issues. CONCLUSION We report the feasibility of secondary IOL implantation using Carlevale with penetrating keratoplasty. The relative of ease of Carlevale lens implantation through the transscleral plugs reduces the open globe length resulting in a safer procedure, especially for vitrectomized eyes.
Collapse
Affiliation(s)
- Lorenzo de Angelis
- Department of Translational Surgery and Medicine, Ophthalmology, Department of NEUROFARBA, University of Florence, Careggi, Florence, Italy
| | - Francesco Barca
- Department of Translational Surgery and Medicine, Ophthalmology, Department of NEUROFARBA, University of Florence, Careggi, Florence, Italy
| | - Stanislao Rizzo
- UOC Oculistica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Università Cattolica del Sacro Cuore, Rome, Italy.,Consiglio Nazionale delle Ricerche, Istituto di Neuroscienze, Pisa, Italy
| | - Laura Di Leo
- Department of Translational Surgery and Medicine, Ophthalmology, Department of NEUROFARBA, University of Florence, Careggi, Florence, Italy
| | - Leandro Oliverio
- Department of Translational Surgery and Medicine, Ophthalmology, Department of NEUROFARBA, University of Florence, Careggi, Florence, Italy
| | - Tomaso Caporossi
- UOC Oculistica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Università Cattolica del Sacro Cuore, Rome, Italy.,Consiglio Nazionale delle Ricerche, Istituto di Neuroscienze, Pisa, Italy
| |
Collapse
|
37
|
Directed Differentiation of Human Pluripotent Stem Cells towards Corneal Endothelial-Like Cells under Defined Conditions. Cells 2021; 10:cells10020331. [PMID: 33562615 PMCID: PMC7915025 DOI: 10.3390/cells10020331] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 12/13/2022] Open
Abstract
The most crucial function of corneal endothelial cells (CEnCs) is to maintain optical transparency by transporting excess fluid out of stroma. Unfortunately, CEnCs are not able to proliferate in vivo in the case of trauma or dystrophy. Visually impaired patients with corneal endothelial deficiencies that are waiting for transplantation due to massive global shortage of cadaveric corneal transplants are in a great need of help. In this study, our goal was to develop a defined, clinically applicable protocol for direct differentiation of CEnCs from human pluripotent stem cells (hPSCs). To produce feeder-free hPSC-CEnCs, we used small molecule induction with transforming growth factor (TGF) beta receptor inhibitor SB431542, GSK-3-specific inhibitor CHIR99021 and retinoic acid to guide differentiation through the neural crest and periocular mesenchyme (POM). Cells were characterized by the morphology and expression of human (h)CEnC markers with immunocytochemistry and RT-qPCR. After one week of induction, we observed the upregulation of POM markers paired-like homeodomain transcription factor 2 (PITX2) and Forkhead box C1 (FOXC1) and polygonal-shaped cells expressing CEnC-associated markers Zona Occludens-1 (ZO-1), sodium-potassium (Na+/K+)-ATPase, CD166, sodium bicarbonate cotransporter 1 (SLC4A4), aquaporin 1 (AQP1) and N-cadherin (NCAD). Furthermore, we showed that retinoic acid induced a dome formation in the cell culture, with a possible indication of fluid transport by the differentiated cells. Thus, we successfully generated CEnC-like cells from hPSCs with a defined, simple and fast differentiation method.
Collapse
|
38
|
Choi EY, Lee CH, Kang HG, Han JY, Byeon SH, Kim SS, Koh HJ, Kim M. Long-term surgical outcomes of primary retropupillary iris claw intraocular lens implantation for the treatment of intraocular lens dislocation. Sci Rep 2021; 11:726. [PMID: 33436860 PMCID: PMC7804091 DOI: 10.1038/s41598-020-80292-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 11/09/2020] [Indexed: 11/16/2022] Open
Abstract
We aimed to investigate the efficacy and safety of primary retropupillary iris claw intraocular lens (R-IOL) implantation in patients with complete intraocular lens (IOL) dislocation. In this single-center retrospective case series, we reviewed the medical records of patients who underwent R-IOL implantation surgery with pars plana vitrectomy for the treatment of IOL dislocation between September 2014 and July 2019. The primary outcome was change in visual acuity (VA) up to 24 months postoperatively. The secondary outcomes included changes in intraocular pressure (IOP), refractive errors, and endothelial cell count (ECC) over the same period. Data of 103 eyes (98 patients) were analyzed. The mean uncorrected VA was significantly improved at one month postoperatively (− 0.69 logMAR, P < 0.001), compared to the preoperative value. IOP (− 2.3 mmHg, P = 0.008) and ECC (− 333.4 cells/mm2, P = 0.027) significantly decreased one month post-surgery and remained stable thereafter. Postoperative mean spherical equivalents were similar to the prediction error throughout the follow-up period. IOP elevation (n = 8, 7.8%), cystoid macular edema (n = 4, 3.9%), and dislocation of the R-IOL (n = 10, 9.7%) were managed successfully. Overall, primary R-IOL implantation with pars plana vitrectomy is effective and safe for correcting IOL dislocation due to various causes.
Collapse
Affiliation(s)
- Eun Young Choi
- Department of Ophthalmology, Institute of Vision Research, Severance Eye Hospital, Yonsei University College of Medicine, 50-1, Yonseiro, Seodaemun-gu, Seoul, 03722, Korea
| | - Chul Hee Lee
- Department of Ophthalmology, Institute of Vision Research, Gangnam Severance Hospital, Yonsei University College of Medicine, 211, Eonjuro, Gangnam-gu, Seoul, 06273, Korea
| | - Hyun Goo Kang
- Department of Ophthalmology, Institute of Vision Research, Gangnam Severance Hospital, Yonsei University College of Medicine, 211, Eonjuro, Gangnam-gu, Seoul, 06273, Korea
| | - Jae Yong Han
- Department of Ophthalmology, Institute of Vision Research, Gangnam Severance Hospital, Yonsei University College of Medicine, 211, Eonjuro, Gangnam-gu, Seoul, 06273, Korea
| | - Suk Ho Byeon
- Department of Ophthalmology, Institute of Vision Research, Severance Eye Hospital, Yonsei University College of Medicine, 50-1, Yonseiro, Seodaemun-gu, Seoul, 03722, Korea
| | - Sung Soo Kim
- Department of Ophthalmology, Institute of Vision Research, Severance Eye Hospital, Yonsei University College of Medicine, 50-1, Yonseiro, Seodaemun-gu, Seoul, 03722, Korea
| | - Hyoung Jun Koh
- Department of Ophthalmology, Institute of Vision Research, Severance Eye Hospital, Yonsei University College of Medicine, 50-1, Yonseiro, Seodaemun-gu, Seoul, 03722, Korea
| | - Min Kim
- Department of Ophthalmology, Institute of Vision Research, Gangnam Severance Hospital, Yonsei University College of Medicine, 211, Eonjuro, Gangnam-gu, Seoul, 06273, Korea.
| |
Collapse
|
39
|
Yang S, Jiang H, Nie K, Feng L, Fan W. Effect of capsular tension ring implantation on capsular stability after phacoemulsification in patients with weak zonules: a randomized controlled trial. CTR implantation in cataract patients with weak zonules. BMC Ophthalmol 2021; 21:19. [PMID: 33413210 PMCID: PMC7792360 DOI: 10.1186/s12886-020-01772-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 12/16/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The use of capsular tension ring (CTR) implantation to treat cataract patients with weak zonules is still controversial. The aim of this study was to examine the effects of CTR implantation on capsular stability after phacoemulsification in patients with weak zonules, especially patients who have undergone pars plana vitrectomy (PPV) or those who suffer from severe myopia. METHODS A total of 42 patients who underwent phacoemulsification and received an intraocular lens (IOL) were randomized to undergo CTR implantation or not. The control and CTR groups were compared in terms of uncorrected distant visual acuity (UDVA), best corrected distant visual acuity (BCDVA), refractive prediction error, the area of anterior capsulorhexis, and IOL inclination angle. Follow-up visits were conducted postoperatively at 1 day, 1 week, 1 month and 3 months. Subgroup analyses were performed based on PPV and severe myopia. RESULTS Surgery significantly improved UDVA and BCDVA to similar extents in CTR and control patients, and refraction prediction error was similar between the two groups at all follow-up times. At 3 months after surgery, the area of anterior capsulorhexis was significantly larger in CTR patients than in controls (p = 0.0199). These differences were also significant between the subgroups of patients with severe myopia. Vertical IOL inclination was less within CTR groups at 3 months after surgery, especially in patients with severe myopia (p = 0.0286). At 1 week postoperatively, the proportion of individuals whose posterior lens capsule that had completely adhered to the posterior IOL surface was significantly higher among CTR patients (p = 0.023). No serious surgical complications were observed. CONCLUSION CTR implantation can benefit cataract patients with weak zonules by maintaining the shape of the capsular bag, reducing capsule shrinkage and stabilizing IOL inclination. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR-INR-17011217 , date of registration April 22, 2017, prospectively registered.
Collapse
Affiliation(s)
- Shangfei Yang
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Hui Jiang
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Kailai Nie
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Liwen Feng
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Wei Fan
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China.
| |
Collapse
|
40
|
Mylona I, Tsinopoulos I. A Critical Appraisal of New Developments in Intraocular Lens Modifications and Drug Delivery Systems for the Prevention of Cataract Surgery Complications. Pharmaceuticals (Basel) 2020; 13:E448. [PMID: 33302370 PMCID: PMC7762578 DOI: 10.3390/ph13120448] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 12/13/2022] Open
Abstract
Cataract surgery is the commonest ophthalmic surgery worldwide. The replacement of the diseased lens with a synthetic one (intraocular lens-IOL) remains the treatment of choice, despite its potential complications that include infection, inflammation and posterior capsule opacification. The potential for drug delivery via the IOL has been researched extensively over a period of twenty-five years, yet there is very limited progress in transferring the findings from research to everyday practice. The objective of this review is to assess the progress made in the field of IOL lens modifications and drug delivery systems over the past five years. Thirty-six studies that were conducted during the past five years were identified and deemed suitable for inclusion. They were grouped in three broad categories, studies that described new methods for loading a drug onto the IOL, assessment of the effects of drugs that were loaded to the IOL and studies that assessed the effects of non-pharmaceutical modifications of IOLs. While considerable progress is continually being made with regard to methods and materials, there is still little capitalization upon these research studies, with no commercially available IOL-based drug delivery system being available. Close cooperation between researchers in basic sciences (chemistry, physics, materials science and pharmacy), clinical researchers, IOL manufacturers and the pharmaceutical industry is an important prerequisite for further development.
Collapse
Affiliation(s)
- Ioanna Mylona
- 2nd Department of Ophthalmology, Aristotle University of Thessaloniki, 564 29 Thessaloniki, Greece;
| | | |
Collapse
|
41
|
Yusef YN, Yusef SN, Ivanov MN, Vvedenskiy AS, Fokina ND, Alkharki L, Shashorina SA. [Evolution of IOL exchange. Part 1. Development of methods for IOL exchange]. Vestn Oftalmol 2020; 136:248-253. [PMID: 33063973 DOI: 10.17116/oftalma2020136052248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The review presents the history of development and improvement of methods for intraocular lens (IOL) exchange. Existing techniques of IOL exchange are comparatively analyzed.
Collapse
Affiliation(s)
- Yu N Yusef
- Research Institute of Eye Diseases, Moscow, Russia
| | - S N Yusef
- Research Institute of Eye Diseases, Moscow, Russia
| | - M N Ivanov
- Research Institute of Eye Diseases, Moscow, Russia
| | | | - N D Fokina
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - L Alkharki
- Research Institute of Eye Diseases, Moscow, Russia
| | | |
Collapse
|
42
|
Abela-Formanek C, Reumüller A. Sekundäre Linsenimplantation: chirurgische Techniken und Ergebnisse. SPEKTRUM DER AUGENHEILKUNDE 2020. [DOI: 10.1007/s00717-020-00462-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
ZusammenfassungEs stehen verschiedene alternative chirurgische Optionen zur Verfügung, um eine sekundäre Intraokularlinse (IOL) in Augen mit unzureichender Kapselunterstützung zu implantieren. Erfolgreiche Techniken umfassen die Implantation einer irisfixierten IOL (IFIOL), einer kammerwinkelgestützten Vorderkammerlinse (ACIOL) oder verschiedene Variationen zur Sklerafixierung (SFIOL). Jede dieser Methoden hat sich als sicher und effektiv erwiesen, weist jedoch verfahrensspezifische Einschränkungen auf. Jüngste Studien zeigen, dass die Entwicklung neuer chirurgischer Techniken diesen Patienten weiterhin sichere und reproduzierbare Behandlungsmöglichkeiten bietet. Obwohl die Implantation von sekundären IOLs ohne Kapselunterstützung von vielen Faktoren, einschließlich der Präferenz des Chirurgen, abhängt, sind nahtlose sklerafixierende Techniken für die chirurgische Gemeinschaft von wachsendem Interesse. Das Bestreben nach kürzeren und weniger traumatischen Operationen sowie nach reproduzierbaren und funktionell guten Ergebnissen, fördert dabei die Entwicklung von neuen Operationstechniken, Intraokularlinsen und Instrumenten. Diese Übersichtsarbeit gibt einen Einblick in alte und neue Behandlungsmethoden zur Korrektur von Aphakie mit sekundären Intraokularlinsen
Collapse
|
43
|
Werner L. Intraocular Lenses: Overview of Designs, Materials, and Pathophysiologic Features. Ophthalmology 2020; 128:e74-e93. [PMID: 32619547 DOI: 10.1016/j.ophtha.2020.06.055] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/17/2020] [Accepted: 06/24/2020] [Indexed: 11/29/2022] Open
Abstract
This article provides an overview of intraocular lenses (IOLs) currently used in cataract surgery. Aspects presented include design features related to IOL construction and sites of fixation; optic, filter, and haptic materials; as well as pathophysiologic features of uveal biocompatibility, capsular biocompatibility, and postoperative IOL opacification. This overview also includes supplementary (add-on; piggyback) lenses implanted in eyes that are already pseudophakic and considerations on IOLs used in the pediatric population. Different IOLs are made available to surgeons each year, including lenses with increasingly complex design characteristics owing to advancements in manufacturing and surgical techniques.
Collapse
Affiliation(s)
- Liliana Werner
- Intermountain Ocular Research Center, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah.
| |
Collapse
|
44
|
Artisan iris-claw intraocular lens implantation in vitrectomised eyes. Eye (Lond) 2020; 35:1393-1397. [PMID: 32555519 DOI: 10.1038/s41433-020-1022-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVES To present the visual acuity (VA) results and complication rates following Artisan intraocular lens (IOL) insertion in vitrectomised eyes. METHODS Outcome data were collected for all vitrectomised patients who had undergone Artisan IOL insertion between January 2014 and May 2019 at Moorfields Eye Hospital. All those with follow-up greater than 2 months were included in the analysis. RESULTS Sixty-nine eyes from 61 patients were included. Average follow up was 2 years. Fifty-five (80%) eyes had at least one ocular comorbidity prior to Artisan IOL insertion. At final follow up 46 (67%) eyes had best-corrected VA better than 6/12. Sixty-three eyes (91%) either gained or maintained VA. Mean post-operative spherical equivalent was -0.2D. Two (3%) lenses became de-enclavated requiring further surgery. Two (3%) eyes developed acute post-operative cystoid macular oedema. Two (3%) required additional topical IOP-lowering therapy to their pre-operative glaucoma regimen. One eye had mild corneal oedema, which persisted for 1 year following surgery and subsequently resolved. CONCLUSIONS Artisan IOL insertion is a safe and effective option for the surgical correction of aphakia in vitrectomised eyes lacking capsular support. Refractive results comparable to posterior chamber IOL placement can be achieved with these lenses.
Collapse
|
45
|
Rozot P. Consultation Section: Cataract. November consultation #2. J Cataract Refract Surg 2019; 45:1686-1687. [PMID: 31706524 DOI: 10.1016/j.jcrs.2019.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
46
|
Negretti GS, Chan WO, Pavesio C, Muqit MM. Artisan-style iris-claw intraocular lens implantation in patients with uveitis. J Cataract Refract Surg 2019; 45:1645-1649. [DOI: 10.1016/j.jcrs.2019.07.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 11/24/2022]
|