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Karakosta C, Verykios VS, Feretzakis G, Kourentis C. Macular and Optic Disc Perfusion Changes After Silicone Oil Removal Using Optical Coherence Tomography Angiography: A Prospective Study. Cureus 2024; 16:e56442. [PMID: 38638747 PMCID: PMC11024882 DOI: 10.7759/cureus.56442] [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] [Accepted: 03/15/2024] [Indexed: 04/20/2024] Open
Abstract
AIM The aim of this study was to prospectively evaluate the changes in macular and optic disc microvascular structures in patients who underwent silicone oil (SO) removal. MATERIALS AND METHODS A total of 28 patients scheduled for unilateral SO removal were included in the study. Their fellow eyes served as controls. Optical coherence tomography angiography (OCTA) of the retina (6.0 mm) and disc (4.5 mm) was performed one day before SO removal, and then at 1 week and 1, 3, 6, and 12 months postoperatively. All analyses were conducted using the R programming language, with a p-value <0.05 considered statistically significant. RESULTS After silicone oil removal, statistically significant changes were observed in the flow in the outer retina and radial peripapillary capillary (RPC) density for small and all vessels inside the disc. Statistically significant differences between the intervention and control groups were noted in vessel density in both the superficial and deep capillary plexuses and RPC density for small and all vessels. CONCLUSION Changes in macular vessel density and radial peripapillary capillary density were observed after SO removal. The latter changes appear to improve after the first postoperative month and continue until the first postoperative year. Notably, these changes were significant between the first postoperative week and 6 and 12 postoperative months (p = 0.0263 and p = 0.021, respectively). Best corrected visual acuity (BCVA) is likely associated with these parameters, indicating that improvement may be observed even one year following SO removal.
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Affiliation(s)
- Christina Karakosta
- Ophthalmology Department, National and Kapodistrian University of Athens School of Medicine, Athens, GRC
| | | | | | - Christina Kourentis
- First Ophthalmology Department, Ophthalmiatreio Eye Hospital of Athens, Athens, GRC
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Cornelio A, Collazo Martinez A, Lu H, Jones C, Kashani AH. Rigid alignment method for secondary analyses of optical coherence tomography volumes. BIOMEDICAL OPTICS EXPRESS 2024; 15:938-952. [PMID: 38404338 PMCID: PMC10890897 DOI: 10.1364/boe.508123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/27/2024]
Abstract
Optical coherence tomography (OCT) provides micron level resolution of retinal tissue and is widely used in ophthalmology. Millions of pre-existing OCT images are available from research and clinical databases. Analysis of this data often requires or can benefit significantly from image registration and reduction of speckle noise. One method of reducing noise is to align and average multiple OCT scans together. We propose to use surface feature information and whole volume information to create a novel and simple pipeline that can rigidly align, and average multiple previously acquired 3D OCT volumes from a commercially available OCT device. This pipeline significantly improves both image quality and visualization of clinically relevant image features over single, unaligned volumes from the commercial scanner.
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Affiliation(s)
- Andrew Cornelio
- Wilmer Eye Institute, Johns Hopkins Hospital, Baltimore, MD 21287, USA
| | | | - Hanzhang Lu
- Department of Radiology and Radiological Science, Johns Hopkins University Hospital, Baltimore, MD 21287, USA
| | - Craig Jones
- Wilmer Eye Institute, Johns Hopkins Hospital, Baltimore, MD 21287, USA
- Department of Radiology and Radiological Science, Johns Hopkins University Hospital, Baltimore, MD 21287, USA
- Department of Computer Science, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Amir H Kashani
- Wilmer Eye Institute, Johns Hopkins Hospital, Baltimore, MD 21287, USA
- Department of Biomedical Engineering, Johns Hopkins Hospital, Baltimore, MD 21287, USA
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Bayraktar Z, Pehlivanoglu S, Hagverdiyeva S, Albayrak S, Karakaya M, Bayraktar Ş. Longitudinal evaluation of retinal thickness and OCTA parameters before and following silicone oil removal in eyes with macula-on and macula-off retinal detachments. Int Ophthalmol 2022; 42:1963-1973. [PMID: 34997372 DOI: 10.1007/s10792-021-02196-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 12/18/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND To investigate the longitudinal retinal vascular and structural alterations by using OCTA following successful repair of retinal detachment (RD) by using silicone oil (SO) endotamponade. METHODS A prospective cohort study was performed on 24 eyes of 24 subjects; 17 of them with macula-off and seven with macula-on RD. At least four OCTA scans were generated for each study eye; two before and two after SO removal (SOR). At each session, retinal thickness (RT), vascular density (VD) in the superficial (SCP) and deep capillary plexuses (DCP) and foveal avascular zone(FAZ) size were measured within the fovea, parafovea and whole macular image. The changes in repeated measures of the same parameters especially before and after SOR were performed and compared within macula-on and macula-off groups and between fellow eyes. RESULTS "In the macula-off eyes, RT measurements within the whole macula, fovea and parafovea reduced as compared with their fellow eyes(p < 0.0001, p = 0.001 and p < 0.0001, respectively) and did not improve after SOR. Additionally, all of the whole macular, foveal, and parafoveal VD measurements at SCP and foveal VD at DCP were less than their fellow eyes after SOR (p = 0.026, p = 0.023 p = 0.026, and p = 0.002, respectively). In macula-on eyes, RT measurements decreased within the parafovea and whole macular area before SOR (p = 0.018 and p = 0.011, respectively) but improved after SOR. Also, VD measurements did not change during follow-up and were not statistically different than their fellow eyes (p > 0.05). FAZ enlargement was found in eyes with macular-off RD after SOR, whereas it was not observed with macular-on RD (p = 0.038and p = 0.237, respectively). CONCLUSIONS Treatment of macula-off RD with SO tamponade has been associated with vascular retinal abnormalities which did not improve following SOR. On the contrary, successful treatment of RD with SO tamponade in macula-on eyes VD measurements of SCP and DCP were not statistically different than their fellow eyes.
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Affiliation(s)
- Zerrin Bayraktar
- Yeni Yüzyıl University, Gaziosmanpaşa Hospital, Maltepe Mahallesi, Yılanlı Ayazma Caddesi, No: 26 Cevizlibağ, 34010, Zeytinburnu, Istanbul, Turkey
| | - Seren Pehlivanoglu
- Beyoğlu Eye Trainning and Research Hospital, Bereketzade, Bereketzade Cami Sk. No:2, 34421, Beyoğlu, Istanbul, Turkey.
| | - Samira Hagverdiyeva
- Yeni Yüzyıl University, Gaziosmanpaşa Hospital, Maltepe Mahallesi, Yılanlı Ayazma Caddesi, No: 26 Cevizlibağ, 34010, Zeytinburnu, Istanbul, Turkey
| | - Sinan Albayrak
- Yeni Yüzyıl University, Gaziosmanpaşa Hospital, Maltepe Mahallesi, Yılanlı Ayazma Caddesi, No: 26 Cevizlibağ, 34010, Zeytinburnu, Istanbul, Turkey
| | - Muharrem Karakaya
- Yeni Yüzyıl University, Gaziosmanpaşa Hospital, Maltepe Mahallesi, Yılanlı Ayazma Caddesi, No: 26 Cevizlibağ, 34010, Zeytinburnu, Istanbul, Turkey
| | - Şükrü Bayraktar
- Yeni Yüzyıl University, Gaziosmanpaşa Hospital, Maltepe Mahallesi, Yılanlı Ayazma Caddesi, No: 26 Cevizlibağ, 34010, Zeytinburnu, Istanbul, Turkey
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Rasool S, Kaushik M, Chaudhary R, Blachford K, Berry M, Scott RAH, Logan A, Blanch RJ. Visual deterioration in patients with photoreceptor loss after retinal reattachment surgery. Graefes Arch Clin Exp Ophthalmol 2022; 260:2141-2147. [PMID: 35080648 PMCID: PMC9203401 DOI: 10.1007/s00417-021-05519-z] [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: 06/07/2021] [Revised: 10/19/2021] [Accepted: 12/07/2021] [Indexed: 01/15/2023] Open
Abstract
PURPOSE Assess the relationship between photoreceptor degeneration and visual function after retinal reattachment surgery (RRS) in a prospective cohort. METHODS Patients with rhegmatogenous retinal detachment (RRD) were reviewed before and 6 months after vitreoretinal surgery. Optical coherence tomographical thickness of the outer nuclear layer (ONL), outer retinal segment (ORS), retinal pigmented epithelium to ellipsoid zone (RPE-EZ) and external limiting membrane to EZ (ELM-EZ) were recorded 6 months post-operatively. These were compared to best corrected visual acuity (BCVA) and retinal sensitivity (Humphrey visual field). RESULTS Thirteen macula-off and 8 macula-on RRD patients were included. The mean ONL thickness was higher after macula-on RRD compared to macula-off RRD (97.70 ± 3.62 μm vs. 73.10 ± 4.98 μm). In all RRD eyes, every 1 μm decrease in ONL thickness correlated with a 0.052 dB decrease and in retinal sensitivity and every 1 μm decrease in ORS thickness was associated with a 0.062 dB reduction in retinal sensitivity. ORS, ELM-EZ and RPE-EZ thickness did not correlate with BCVA post-RRS. CONCLUSION There was greater ONL and ORS thinning following macula-off compared to macula-on RRD. Correlations between ONL and ORS thinning with decreased retinal sensitivity may be explained by RRD-induced photoreceptor death.
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Affiliation(s)
- Sana Rasool
- Sandwell & West Birmingham NHS Trust, Birmingham, UK
| | - Megha Kaushik
- Department of Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Rishika Chaudhary
- Department of Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK ,Neuroscience & Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK ,National Institute of Health Research Surgical Reconstruction and Microbiology Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | | | | | - Robert A. H. Scott
- Neuroscience & Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Ann Logan
- Axolotl Consulting Ltd, Droitwich, WR9 0JS Worcestershire UK ,Division of Biomedical Sciences, Warwick Medical School, University of Warwick, CV4 7HL Coventry, UK
| | - Richard J. Blanch
- Department of Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK ,Neuroscience & Ophthalmology, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK ,National Institute of Health Research Surgical Reconstruction and Microbiology Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK ,Academic Department of Military Surgery & Trauma, Royal Centre for Defence Medicine, Birmingham, UK
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Resch MD, Balogh A, Lászik G, Nagy ZZ, Papp A. Association between retinal vessel density and postoperative time after primary repair of rhegmatogenous retinal detachment. PLoS One 2021; 16:e0258126. [PMID: 34597349 PMCID: PMC8486093 DOI: 10.1371/journal.pone.0258126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/20/2021] [Indexed: 01/03/2023] Open
Abstract
The study aimed at a quantitative evaluation of macular vasculature after primary repair of rhegmatogenous retinal detachment (RRD) in correlation with the elapsed postoperative time. Optical coherence tomography angiography (OCT-A) was performed in 66 eyes of 33 patients in a retrospective case-control study: superficial and deep retinal vessel density (VD) of the whole image, fovea, parafovea, non-flow area, and foveal avascular zone (FAZ) were measured. Data of eyes with RRD were compared to the healthy fellow eyes in 3 groups according to the elapsed time after surgery: RD1: 6–12 months (n = 10), RD2: 1–2 years (n = 10), and RD3: 2–10 years (n = 13). In RD1 VD was significantly lower in the superficial parafoveal, deep parafoveal, and deep whole area compared to the fellow eyes. In RD3 VD was significantly lower in the superficial fovea, parafovea, whole image, and deep fovea, the non-flow area was significantly enlarged. OCT-A demonstrated a significant reduction in the superficial and deep regions of the macular vasculature after the repair of RRD. The deep area is more affected in the early postoperative period and the superficial region and the extent of the non-flow area are more involved after a longer postoperative time.
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Affiliation(s)
- Miklós D. Resch
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
- * E-mail:
| | - Anikó Balogh
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
- Department of Ophthalmology, Uzsoki Hospital, Budapest, Hungary
| | - Gábor Lászik
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
| | - Zoltán Z. Nagy
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
| | - András Papp
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
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RELATIONSHIP BETWEEN PREOPERATIVE FOVEAL MICROSTRUCTURE AND VISUAL ACUITY IN MACULA-OFF RHEGMATOGENOUS RETINAL DETACHMENT: Imaging Analysis by Swept Source Optical Coherence Tomography. Retina 2021; 40:1873-1880. [PMID: 31764614 DOI: 10.1097/iae.0000000000002687] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE To visualize foveal microstructures in macula-off rhegmatogenous retinal detachment using swept source optical coherence tomography preoperatively and postoperatively and to investigate the relationship between foveal microstructures and postoperative visual acuity. METHODS We retrospectively analyzed 42 eyes of 42 consecutive patients diagnosed with macula-off rhegmatogenous retinal detachment who underwent anatomically successful repair surgery and were followed up for 6 months. We used swept source optical coherence tomography to investigate the relationship between preoperative and postoperative continuity of both the external limiting membrane (ELM) and ellipsoid zone (Ez) and preoperative and postoperative best-corrected visual acuity. RESULTS Both preoperative ELM and Ez were continuous in 9 eyes (21%; ELM+/Ez+ eyes), only the ELM was continuous in 25 eyes (60%; ELM+/Ez- eyes), and neither was continuous in 8 eyes (19%; ELM-/Ez- eyes). Postoperative best-corrected visual acuity in ELM+/Ez+ eyes (-0.05 ± 0.04 logarithm of the minimum angle of resolution units, Snellen equivalent 20/18) was significantly better than that in both ELM+/Ez- (0.16 ± 0.16, 20/29; P = 0.03) and ELM-/Ez- (0.86 ± 0.37, 20/145; P < 0.001) eyes. Postoperative best-corrected visual acuity was significantly better in ELM+/Ez- than in ELM-/Ez- eyes (P < 0.001). CONCLUSION In macula-off rhegmatogenous retinal detachment, preoperative continuity of the ELM and Ez may be a predictor of postoperative best-corrected visual acuity.
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Yang YC, Li QY, Chen MJ, Zhang LJ, Zhang MY, Pan YC, Ge QM, Shu HY, Lin Q, Shao Y. Investigation of Changes in Retinal Detachment-Related Brain Region Activities and Functions Using the Percent Amplitude of Fluctuation Method: A Resting-State Functional Magnetic Resonance Imaging Study. Neuropsychiatr Dis Treat 2021; 17:251-260. [PMID: 33536757 PMCID: PMC7850567 DOI: 10.2147/ndt.s292132] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 12/14/2020] [Indexed: 12/29/2022] Open
Abstract
PURPOSE The percent amplitude of fluctuation (PerAF) method was used to study the changes in neural activities and functions in specific brain regions of patients with a retinal detachment (RD). PATIENTS AND METHODS In this study, we recruited 15 RD patients (nine males and six females) and 15 healthy controls (HCs) matched for gender, age, and weight. All participants were scanned with resting functional magnetic resonance imaging (rs-fMRI). The PerAF method was then used for data analysis to evaluate and detect changes in neural activity in relevant brain regions. Receiver operating characteristic (ROC) curve analysis was used to evaluate the two groups. RESULTS The PerAF signal values of the right fusiform gyrus and the left inferior temporal gyrus of RD patients were significantly higher than those of HCs. This may indicate changes in neural activity and function in the related brain regions. The anxiety and depression scores of hospital anxiety and depression scale (HADS) and the durations in RD patients were positively correlated with the PerAF values of the left inferior temporal gyrus. CONCLUSION In this study, we demonstrated that there were significant changes in the PerAF values in specific areas of the brain in patients with RD. The change of PerAF values represent the changes of BOLD signal intensity, which reflect the hyperactivity or weakening of specific brain regions in RD patients, which are helpful to predict the development and prognosis of RD patients, and play an important role in the early diagnosis of RD. In addition, according to the results, changes in neural activity in specific brain regions of RD patients increase the risk of brain dysfunction related diseases, which may help to understand the pathological mechanism of vision loss in RD patients.
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Affiliation(s)
- Yan-Chang Yang
- Department of Ophthalmology, Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Qiu-Yu Li
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Min-Jie Chen
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Li-Juan Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Meng-Yao Zhang
- Department of Ophthalmology, Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Yi-Cong Pan
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Qian-Min Ge
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Hui-Ye Shu
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Qi Lin
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
| | - Yi Shao
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Clinical Ophthalmology Institute, Nanchang 330006, Jiangxi, People's Republic of China
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Kong W, Tao Y, Xie L, Du K, Dong H, Wei W. Prognostic Factors for Outcome after Vitrectomy for Retinal Detachment Secondary to Cytomegalovirus Retinitis in Patients with AIDS: A Retrospective Single-center Analysis. Ocul Immunol Inflamm 2020; 29:1547-1552. [PMID: 32634031 DOI: 10.1080/09273948.2020.1764591] [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: 10/23/2022]
Abstract
Purpose: To analyze the clinical characteristics and relevant prognostic factors of vitrectomy for retinal detachment (RD) secondary to cytomegalovirus retinitis (CMVR) in patients with acquired immune deficiency syndrome (AIDS).Methods: This study involved 39 eyes that underwent vitrectomy. Best-corrected visual acuity (BCVA), CD4+ cell counts, retinal attachment rate, and prognostic factors were assessed 1, 3, and 6 months postoperatively.Results: The rate of retinal attachment at 1 month (87.2%) was higher than at 3 (82.1%) and 6 (71.8%) months. Factors significantly related with recurrent RD at 6 months were CD4+ cell count <50 cell/µL (p = .000) and relaxed retinotomy (p = .002). Factors significantly related with the visual (≤logMAR1.0) prognosis at 6 months include band keratopathy (p = .015) and macular involvement by the RD (p = .012).Conclusion: CD4+ cell counts <50 cell/µL and relaxed retinotomy are associated with worse prognosis, while band keratopathy and macular involvement by the RD are related to poorer vision.
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Affiliation(s)
- Wenjun Kong
- Department of Opthalmology, Beijing You'an Hosptial, Capital Medical University, Beijing, China
| | - Yong Tao
- Department of Opthalmology, Beijing Chaoyang Hosptial, Capital Medical University, Beijing, China
| | - Lianyong Xie
- Department of Opthalmology, Beijing You'an Hosptial, Capital Medical University, Beijing, China
| | - Kuifang Du
- Department of Opthalmology, Beijing You'an Hosptial, Capital Medical University, Beijing, China
| | - Hongwei Dong
- Department of Opthalmology, Beijing You'an Hosptial, Capital Medical University, Beijing, China
| | - Wenbin Wei
- Department of Opthalmology, Beijing Tongren Hosptial, Capital Medical University, Beijing, China
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McKay KM, Vingopoulos F, Wang JC, Papakostas TD, Silverman RF, Marmalidou A, Lains I, Eliott D, Vavvas DG, Kim LA, Wu DM, Miller JB. Retinal Microvasculature Changes After Repair of Macula-off Retinal Detachment Assessed with Optical Coherence Tomography Angiography. Clin Ophthalmol 2020; 14:1759-1767. [PMID: 32616995 PMCID: PMC7326212 DOI: 10.2147/opth.s214623] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 05/12/2020] [Indexed: 11/23/2022] Open
Abstract
Objective To characterize the microvascular retinal changes after repair of macula-off rhegmatogenous retinal detachment (RRD) using optical coherence tomography angiography (OCT-A). Patients and Methods A retrospective review of patients who underwent repair of macula-off RRD. Fellow unaffected eyes were used as controls. Post-operative OCT-A allowed comparison of vessel density (VD) and foveal avascular zone (FAZ) area in the superficial and deep retinal capillary plexus (DCP) as well as VD in the choriocapillaris layer. Results Seventeen eyes of 17 RRD patients were included in the final analysis. There was a reduction in VD of the deep retinal capillary plexus in affected eyes compared to fellow eyes (p = 0.046). RRD eyes with reduced VD in DCP compared with their fellow control eyes had worse visual acuity after repair compared to those without (p = 0.032). No significant microvasculature changes were detected in the FAZ area and VD in the superficial capillary plexus and choriocapillaris compared to fellow eyes. Conclusion In macula-off RRD eyes, significant microvascular changes were detected in the DCP using OCT-A even after successful anatomical repair. Decreased VD in the DCP compared to the fellow healthy eyes was correlated with worse visual acuity.
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Affiliation(s)
- K Matthew McKay
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Filippos Vingopoulos
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Jay C Wang
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Thanos D Papakostas
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.,Retina Service, Weill Cornell Medical College, New York, NY, USA
| | - Rebecca F Silverman
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Anna Marmalidou
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Inês Lains
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Dean Eliott
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Demetrios G Vavvas
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Leo A Kim
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - David M Wu
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - John B Miller
- Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
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Zhou Y, Zhang S, Zhou H, Gao M, Liu H, Sun X. Comparison of fundus changes following silicone oil and sterilized air tamponade for macular-on retinal detachment patients. BMC Ophthalmol 2020; 20:249. [PMID: 32571251 PMCID: PMC7310510 DOI: 10.1186/s12886-020-01523-9] [Citation(s) in RCA: 12] [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: 05/15/2020] [Accepted: 06/17/2020] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND To investigate different tamponade effects of intravitreal silicone oil (SO) and sterilized air on macular vasculature and structure after successful retinal repair for macular-on rhegmatogenous retinal detachment (RRD) patients. METHOD 21 eyes (21 patients) with macular-on RRD underwent single pars plana vitrectomy following intravitreal SO or sterilized air (Gas) tamponade. Optical Coherence Tomography (OCT) and angiography were used to evaluate retinal layer thickness and flow density (FD) changes throughout the observation period of 12 weeks. Retinal layers were segmented into 7 sets: NFL, GCL + IPL, INL, OPL, ONL + IS, OS+RPE and BRM. Macular perfusion system was segmented into superficial and deep capillary plexus flow density (SCPFD, DCPFD), and choriocapillaries plexus flow density (CCPFD). RESULT Compared to Gas tamponade, SO tamponade led to more decrease in both superficial and deep retinal blood flow during observation. NFL thickness was found to decrease in both Gas tamponade and SO tamponade eyes. SO tamponade resulted in more pronounced decrease which led to significant intergroup difference. Opposite changing trends were found in GCL + IPL and ONL + IS thicknesses due to different means of tamponade. SO tamponade caused thicknesses of these two segmented layers to decrease, which led to significant intergroup differences. SO tamponade also led to more decrease in INL, OPL thicknesses. No significant intergroup difference of choroidal thickness was observed. CONCLUSION Compared to gas, silicone oil could have more negative tamponade effects on both fundus vasculature and structure.
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Affiliation(s)
- Yifan Zhou
- Department of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai engineering center for precise diagnosis and treatment of eye diseases, Shanghai, China
- Shanghai Key Laboratory of Fundus Disease, Shanghai, China
| | - Siqi Zhang
- Department of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai engineering center for precise diagnosis and treatment of eye diseases, Shanghai, China
- Shanghai Key Laboratory of Fundus Disease, Shanghai, China
| | - Hao Zhou
- Department of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Min Gao
- National Clinical Research Center for Eye Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai engineering center for precise diagnosis and treatment of eye diseases, Shanghai, China
- Shanghai Key Laboratory of Fundus Disease, Shanghai, China
| | - Haiyun Liu
- Department of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
- National Clinical Research Center for Eye Diseases, Shanghai, China.
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China.
- Shanghai engineering center for precise diagnosis and treatment of eye diseases, Shanghai, China.
- Shanghai Key Laboratory of Fundus Disease, Shanghai, China.
| | - Xiaodong Sun
- Department of Ophthalmology, Shanghai General Hospital (Shanghai First People's Hospital), School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai engineering center for precise diagnosis and treatment of eye diseases, Shanghai, China
- Shanghai Key Laboratory of Fundus Disease, Shanghai, China
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Coppola M, Marchese A, Cicinelli MV, Rabiolo A, Giuffrè C, Gomarasca S, Querques G, Bandello F. Macular optical coherence tomography findings after vitreoretinal surgery for rhegmatogenous retinal detachment. Eur J Ophthalmol 2020; 30:805-816. [DOI: 10.1177/1120672120911334] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The primary aim of this study was to summarize and illustrate the main structural cross-sectional optical coherence tomography findings encountered after vitreoretinal surgery for rhegmatogenous retinal detachment. This was a non-systematic review of literature on structural cross-sectional optical coherence tomography findings after vitreoretinal surgery for rhegmatogenous retinal detachment. Adequate illustrations of the main findings described were found after a retrospective analysis of imaging and charts of patients operated at the department where this study was performed. The main structural cross-sectional optical coherence tomography findings after vitreoretinal surgery for rhegmatogenous retinal detachment included persistent subretinal fluid, subretinal blebs, retinal folds, subretinal perfluorocarbon liquids, macular alterations related to silicone oil, epiretinal membranes, proliferative vitreoretinopathy, cystoid macular edema, macular holes, and recurrent retinal detachment. In conclusion, optical coherence tomography was a useful tool after vitreoretinal surgery for rhegmatogenous retinal detachment. Some optical coherence tomography findings may not be evident on fundus examination, and optical coherence tomography can reveal essential details for the clinical management and the visual prognosis. Other findings, despite being visible on funduscopic examination, may be better assessed with the aid of optical coherence tomography. All these elements contribute to support the importance of tomographic assessment in the follow-up of eyes treated for vitreoretinal conditions.
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Affiliation(s)
- Michele Coppola
- Department of Ophthalmology, San Gerardo Hospital, Monza, Italy
| | - Alessandro Marchese
- Department of Ophthalmology, San Gerardo Hospital, Monza, Italy
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Maria Vittoria Cicinelli
- Department of Ophthalmology, San Gerardo Hospital, Monza, Italy
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Alessandro Rabiolo
- Department of Ophthalmology, San Gerardo Hospital, Monza, Italy
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Chiara Giuffrè
- Department of Ophthalmology, San Gerardo Hospital, Monza, Italy
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | | | - Giuseppe Querques
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Francesco Bandello
- Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
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Li B, Liu YX, Li HJ, Yuan Q, Zhu PW, Ye L, Su T, Shi WQ, Lin Q, Min YL, Xu XW, Shao Y. Reduced gray matter volume in patients with retinal detachment: evidence from a voxel-based morphometry study. Acta Radiol 2020; 61:395-403. [PMID: 31319688 DOI: 10.1177/0284185119861898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BackgroundWe know little about the pathogenesis and diagnosis of retinal detachment.PurposeTo assess spontaneous changes in the cerebral cortex of patients with retinal detachment using voxel-based morphometry and to explore the relationship between retinal detachment and clinical behavioral performance.Material and MethodsPatients (14 men, 6 women; average age = 49.15 ± 10.32 years) with rhegmatogenous retinal detachment (duration of 24.05 ± 19.61 days) and 20 matched healthy controls were recruited. All participants underwent repeated functional magnetic resonance imaging scans. The original three-dimensional T1 brain images were analyzed using voxel-based morphometry and whole brain white matter volume and whole brain gray matter volume were compared with those of the control group. A receiver operating characteristic (ROC) curve was used to classify the mean gray matter volume values of the patients with retinal detachment compared with the controls.ResultsCompared with the controls, whole brain gray matter volume was significantly reduced in patients with retinal detachment, as evidenced by changes in the right inferior frontal gyrus, right superior temporal gyrus, right anterior cingulate gyrus, and right cuneus. In addition, the posterior lobe of the cerebellum, left hippocampus, left cingulate gyrus, and left middle temporal gyrus were also obviously atrophied. Furthermore, whole brain white matter volume of the patients with retinal detachment showed a slight reduction. The ROC curve analysis of each brain region showed that the accuracy of the area under the curve was high.ConclusionWe proved that patients with retinal detachment had unusual changes in the gray matter volume and white matter volume in vision-related brain regions, which could reveal potential pathological mechanisms of retinal detachment.
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Affiliation(s)
- Biao Li
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - Yu-Xin Liu
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - Hai-Jun Li
- Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Qing Yuan
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - Pei-Wen Zhu
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - Lei Ye
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - Ting Su
- Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Fujian, PR China
| | - Wen-Qing Shi
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - Qi Lin
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - You-Lan Min
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - Xiao-Wei Xu
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
| | - Yi Shao
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, PR China
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Inan S, Polat O, Ozcan S, Inan UU. Comparison of Long-Term Automated Retinal Layer Segmentation Analysis of the Macula between Silicone Oil and Gas Tamponade after Vitrectomy for Rhegmatogenous Retinal Detachment. Ophthalmic Res 2020; 63:524-532. [PMID: 32036367 DOI: 10.1159/000506382] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 02/02/2020] [Indexed: 11/19/2022]
Abstract
PURPOSE To identify long-term changes in individual retinal layer thickness using automated retinal layer segmentation analysis on high-resolution spectral-domain optical coherence tomography (SD-OCT) scans of eyes with macula-off rhegmatogenous retinal detachment (RRD) treated with vitreoretinal surgery (VRS) and gas or silicone oil tamponade and having single-operation success. METHODS A total of 58 patients operated on by VRS for RRD and followed up for 12 months were imaged by SD-OCT. The patients with retinal diseases such as an epiretinal membrane or cystic macular edema in the operated and fellow eyes were excluded. The thicknesses of the retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), inner nuclear layer (INL), outer plexiform layer (OPL), outer nuclear layer (ONL), photoreceptor layer, and retinal pigment epithelium were compared to those of the fellow eyes after the 12-month follow-up. Thickness changes in individual layers were quantitatively analyzed in the operated and fellow eyes and correlated with the type of tamponade used in the surgery. RESULTS Spectralis OCT automated segmentation software was used for the retinal layer analysis. There were 22 females and 36 males. Their mean age was 60.7 ± 11.2 years. The mean central macular thickness was 214.3 ± 29.5 µm in the operated and 229.7 ± 21.7 µm in the fellow eyes (p = 0.008). There was a statistically significant difference between the operated and the healthy fellow eyes in the following layers: the RNFL (p = 0.017), GCL (p = 0.02), INL (p = 0.005), and ONL (p = 0.008) in the central foveal area; the RNFL (p < 0.001), INL (p = 0.017), and ONL (p = 0.022) in the perifoveal ring; and the RNFL (p < 0.001), IPL (p = 0.042), INL (p = 0.001), and OPL (p = 0.001) in the peripheral ring. The logMAR best corrected visual acuities were 2.51 ± 0.68 and 2.69 ± 0.62 at baseline and 0.60 ± 0.38 and 0.50 ± 0.38 at month 12 in the silicone oil tamponade (n = 28) and the gas tamponade (n = 30) group (p = 0.52 and p = 0.21, respectively). The foveal GCL, OPL, and ONL and the perifoveal GCL and IPL were statistically significantly thinner in the silicone oil tamponade group (p = 0.01, p = 0.046, p = 0.024, p = 0.006, and p = 0.011, respectively). CONCLUSIONS Significant changes were observed in the retinal layers after VRS for RRD. Individual retinal layers seem to be affected 1 year after VRS for RRD. The type of tamponade can influence the thickness of the retinal layers. The thickness of the retinal layers was significantly preserved in eyes treated with gas tamponade when compared to those treated with silicone oil tamponade in the long term. Further studies are needed to validate our results.
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Affiliation(s)
- Sibel Inan
- Department of Ophthalmology, Afyonkarahisar Health Sciences University Medical School, Afyonkarahisar, Turkey, .,formerly at Department of Ophthalmology, Afyon Kocatepe University Medical School, Afyonkarahisar, Turkey,
| | - Onur Polat
- Department of Ophthalmology, Afyon State Hospital, Afyonkarahisar, Turkey.,formerly at Department of Ophthalmology, Afyon Kocatepe University Medical School, Afyonkarahisar, Turkey
| | - Serkan Ozcan
- Department of Ophthalmology, Idil State Hospital, Sirnak, Turkey.,formerly at Department of Ophthalmology, Afyon Kocatepe University Medical School, Afyonkarahisar, Turkey
| | - Umit Ubeyt Inan
- Department of Ophthalmology, ParkHayat Hospital, Afyonkarahisar, Turkey.,formerly at Department of Ophthalmology, Afyon Kocatepe University Medical School, Afyonkarahisar, Turkey
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Segmented retinal layer analysis of chiasmal compressive optic neuropathy in pituitary adenoma patients. Graefes Arch Clin Exp Ophthalmol 2019; 258:419-425. [PMID: 31853626 DOI: 10.1007/s00417-019-04560-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 11/21/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023] Open
Abstract
AIMS To evaluate changes in the segmented retinal layers of pituitary adenoma (PA) patients and to identify the relationship between these changes and visual function. METHODS A total of 47 (PA patients) and 22 (healthy subjects) eyes were reviewed from the medical records. The PA patients performed a visual field (VF) test before surgery and 1 month after surgery. By optical coherence tomography scanning, eight retinal layers were measured: retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), inner nuclear layer (INL), outer plexiform layer, outer nuclear layer, retinal pigment epithelium, and photoreceptor layer. RESULTS The PA group showed reduced RNFL, GCL, and IPL thicknesses (p = 0.004,< 0.001,< 0.001) and thicker INL thickness (p = 0.012) than did the controls. The mean deviation of preoperative VF in the PA group was positively correlated with RNFL, GCL, and IPL thicknesses (R = 0.664, 0.720, 0.664; p < 0.001,< 0.001,< 0.001) and negatively correlated with the INL thickness (R = -0.400; p = 0.010). Among the 47 eyes, 32 eyes (68%) were included for subgroup analysis. Preoperative RNFL, GCL, and IPL thicknesses were thicker in the postoperatively improved VF group (p = 0.019, 0.009, 0.005). The preoperative cutoff values for visual recovery were 23.6 μm for RNFL thickness, 30.6 μm for GCL thickness, and 28.9 μm for IPL thickness. CONCLUSION During chiasmal compression, the thickening of the INL has presented in addition to thinning of the inner retinal layers. Also, changes in retinal anatomical structures are related to the extent of VF defect and can be used as a predictor of postoperative visual recovery.
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Ozaki K, Yoshikawa Y, Ishikawa S, Katsumoto T, Shibuya M, Shoji T, Kondo H, Matsumoto S, Shinoda K. Electroretinograms recorded with skin electrodes in silicone oil-filled eyes. PLoS One 2019; 14:e0216823. [PMID: 31150414 PMCID: PMC6544342 DOI: 10.1371/journal.pone.0216823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 04/29/2019] [Indexed: 11/19/2022] Open
Abstract
Purpose To assess the physiology of the retina by electroretinography (ERG) with skin electrodes in eyes that had undergone vitrectomy with silicone oil (SO) tamponade. Design Retrospective case series. Method ERGs were recorded from eleven eyes with complex vitreoretinal disorders and from the normal fellow eyes. The affected eyes underwent pars plana vitrectomy (PPV) with SO tamponade. ERGs were recorded before and after the SO was removed. The amplitudes and implicit times of the a- and b-waves of the affected eyes were compared to those of the normal fellow eyes. In addition, the ratios of the amplitudes of the b-waves of the affected eyes to those of the fellow eyes were compared before and after the SO was removed. Results ERGs were recordable from 7 eyes (63.6%) before the SO was removed and 11 eyes (100%) after the SO was removed. The a- and b-wave amplitudes were significantly smaller in the affected eyes than those of the fellow eyes at the baseline. The b-wave amplitude before the removal of the SO was significantly and positively correlated with that after the SO removal. The ratios of the b-waves of the affected/normal fellow eye significantly increased after the SO was removed. Conclusion The results indicate that ERGs picked up by skin electrode can be used to assess the physiology of the retina in eyes with a SO tamponade. The amplitude of the b-waves of the ERGs in silicone-filled eyes can be used to predict the amplitude after the silicone is removed.
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Affiliation(s)
- Kimitake Ozaki
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
| | - Yuji Yoshikawa
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
| | - Sho Ishikawa
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
| | - Takeshi Katsumoto
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
| | - Masayuki Shibuya
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
| | - Takuhei Shoji
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
| | - Hiromi Kondo
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
| | - Soiti Matsumoto
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
- Matsumoto Eye Clinic, Awa City, Tokushima, Japan
| | - Kei Shinoda
- Department of Ophthalmology, Saitama Medical University, Iruma-gun, Saitama, Japan
- * E-mail:
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Li D, Wu J, He Y, Yao X, Yuan W, Chen D, Park HC, Yu S, Prince JL, Li X. Parallel deep neural networks for endoscopic OCT image segmentation. BIOMEDICAL OPTICS EXPRESS 2019; 10:1126-1135. [PMID: 30891334 PMCID: PMC6420296 DOI: 10.1364/boe.10.001126] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/17/2019] [Accepted: 01/17/2019] [Indexed: 05/20/2023]
Abstract
We report parallel-trained deep neural networks for automated endoscopic OCT image segmentation feasible even with a limited training data set. These U-Net-based deep neural networks were trained using a modified dice loss function and manual segmentations of ultrahigh-resolution cross-sectional images collected by an 800 nm OCT endoscopic system. The method was tested on in vivo guinea pig esophagus images. Results showed its robust layer segmentation capability with a boundary error of 1.4 µm insensitive to lay topology disorders. To further illustrate its clinical potential, the method was applied to differentiating in vivo OCT esophagus images from an eosinophilic esophagitis (EOE) model and its control group, and the results clearly demonstrated quantitative changes in the top esophageal layers' thickness in the EOE model.
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Affiliation(s)
- Dawei Li
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
- Equal contribution
| | - Jimin Wu
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Equal contribution
| | - Yufan He
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Xinwen Yao
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Wu Yuan
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Defu Chen
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Hyeon-Cheol Park
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Shaoyong Yu
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jerry L. Prince
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Xingde Li
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
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Saber EE, Bayoumy ASM, Elmohamady MN, Faramawi HM. Macular microstructure and visual acuity after macula-off retinal detachment repair by 23-gauge vitrectomy plus silicone endotamponade. Clin Ophthalmol 2018; 12:2005-2013. [PMID: 30349184 PMCID: PMC6190625 DOI: 10.2147/opth.s181595] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objectives To study the macular microstructural changes and their relationship to visual acuity (VA) following primary vitrectomy and silicone tamponade for retinal detachment. Patients and methods A total of 40 cases with macula-off rhegmatogenous retinal detachment underwent 23-gauge vitrectomy with silicone oil tamponade. Cases with open globe injury and other ocular pathology were excluded. Optical coherence tomography (OCT) imaging of the macula was done about 3 and 6 months postoperatively. OCT macular microstructural changes were recorded and correlated to VA. Results A total of 36 eyes were evaluated by statistical analysis. The best-corrected VA (BCVA) improved in 35 patients (97.2%) and remained unchanged in one patient (2.8%). Patients were divided into two groups based on 6-month postoperative BCVA: group I with 6-month postoperative BCVA of <1 LogMAR and group II with 6-month postoperative BCVA of ≥1 LogMAR. No disruption of retinal microstructure occurred in 70% of cases in group I. Mild disruption was found in 30% of group I and 25% of group II, whereas severe disruption was found in 75% of group II cases. Epiretinal membrane formed early in three eyes in group II and late in two eyes in group I. Conclusion Macular microstructural changes detected by OCT is directly correlated to visual outcomes of retinal detachment repair.
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