A Possible Regression Equation for Predicting Visual Outcomes after Surgical Repair of Open Globe Injuries

The continuous treatment of anterior segment open globe injury: an eye injury vitrectomy study

Background

The prognostic significance of debridement has long been demonstrated for trauma in tissues other than ocular. Unfortunately, the impact of wound healing in the anterior segment (AS) was not paid as much attention as in the posterior segment (PS). This study aims to evaluate whether a better prognosis can be obtained from continuous surgical treatment (CST) before fibrosis or scar formation in an open AS injury.

Methods

In this prospective comparative cohort study, 19 eyes of 19 patients with an experience of AS open globe injury (OGI) were selected from the database of the eye injury vitrectomy study (EIVS) from January 1, 2020 to July 31, 2021. Of 19 patients, 9 who received CST were assigned to group 1, and 10 patients without CST after the initial wound repair were included in group 2. Comparison between the two groups was conducted in the final best corrected visual acuity (BCVA). Significant AS complications after injury were evaluated with χ2 test. The corneal leucoma area ratio, astigmatism, and the score of AS abnormalities were analyzed using the Student's t-test.

Results

The differences of baseline clinical factors between the two groups were not statistically significant. The final BCVA was better in group 1 than in group 2 (P=0.011). The complications directly caused by AS injury, namely adhesive corneal leucoma, uneven anterior chamber, block of light passing through the pupil, and fibrosis or scarring, were more frequent in group 2 than in group 1 (P=0.011, 0.022, 0.037, and 0.040, respectively). Secondary glaucoma (3 cases) and severe AS structure destruction (2 cases) occurred only in group 2 (P=0.037 and 0.474, respectively). The area ratio of leucoma (0.79±0.44, 0.82±0.50, respectively) and corneal astigmatism (3.69±1.90, 4.50±4.80, respectively) revealed no statistical significance between the two groups. On the other hand, the score of AS abnormalities, mean values being 93.33±11.18 for group 1 and 67.00±29.46 for group 2, was statistically different (P=0.022).

Conclusions

Initiating CST before fibrosis or scar formation might improve the prognosis of open AS injury, which was preferable to natural wound healing after wound repair.

Traumatic open globe injury—epidemiology, risk factors and visual outcome at the University Hospital Aachen

Background

Ocular trauma is still a major cause leading to enucleation. This study aims to analyze the visual outcome, epidemiology and risk factors of open globe injury (OGI) at the University Hospital Aachen, Germany.

Material and methods

A retrospective analysis of patient records involving traumatic OGI treated surgically between 2005 and 2015 was conducted. Age, gender, cause of accident, ocular trauma score, best corrected visual acuity (BCVA) at presentation and after treatment as well as location of injury were evaluated.

Results

Of 2272 eyes with trauma, 102 patients with OGI were identified, of which 65% were male and 35% were female. Women were significantly older than men (p < 0.001). The most common cause of injury was domestic syncopal episodes (47%). Work-related injuries occurred exclusively in men in 8.8%. A total of 16% had no light perception (NLP) at presentation, 69% of which improved post intervention to hand movement or better. Endophthalmitis was observed in 4% of all cases. Enucleation was needed mostly due to rupture. Location of OGI, pseudophakia and initial BCVA are risk factors for poor final BCVA. Patients’ BCVA did not improve further after three surgeries.

Conclusion

Traumatic OGI still poses a challenge in terms of treatment planning and prognostic outcome. A rise in elderly patients with multimorbidity represents a secondary obstacle to treatment. Patients with initial NLP can be treated with moderate success. Nevertheless, risk factors and ocular trauma score are unable to provide definitive therapy decisions. OGI should be assessed case by case, taking risk factors for OGI into account. Treating physicians should consider the ethical and economic reasons with regard to whether a high number of surgeries with possible comorbidities is justified.

Outcomes of sutureless secondary intraocular lens fixation with haptic flanging in a cohort of surgically complex eyes

PURPOSE

To describe clinical outcomes of secondary intraocular lens (IOL) implantation using sutureless trans-scleral techniques in surgically complex eyes.

METHODS

Retrospective surgical case series of 45 eyes that underwent secondary IOL implantation using a sutureless haptic flange technique. Demographic data of age, sex, primary diagnosis, best-corrected visual acuity (BCVA), refractive error, intraocular pressure, full ophthalmic exam findings, surgical approach, and any intraoperative complications were noted.

RESULTS

The most common indication for secondary IOL implantation was aphakia, most commonly after ocular trauma. The primary outcome measures were pre-operative and post-operative BCVA, which revealed recovery of pre-operative vision levels by post-operative week 1 and improved vision by post-operative month 1 (p = 0.03). Secondary outcome measures of target refraction pre-operatively and post-operatively revealed significant reduction in post-operative spherical equivalent to achieve BCVA (p < 0.001). Targeting of the secondary IOLs using Barrett Universal II, Holladay 1, Holladay 2, and SRK/T all exhibited a hyperopic shift post-operatively in post-traumatic aphakic eyes and a myopic shift in the post complicated cataract extraction eyes. No intraoperative adverse events were noted. The most common post-operative complication was transient IOP elevation, with most patients completing 6 months of follow-up.

CONCLUSION

There is rapid visual rehabilitation and reduction of spherical equivalent correction to attain BCVA in eyes with a history of ocular trauma that undergo secondary IOL implantation using a trans-scleral flange technique. Moreover, this study highlights that a specific IOL power formula can be more predictive of the desired refractive outcome depending on the indication for secondary IOL implantation.

Motor Vehicle-Associated Traumatic Ocular Injuries Secondary to External Rear-Facing Sideview Mirrors: A Report of 3 Patients

Importance

Rear-facing sideview mirrors are a potentially reducible source of ocular morbidity following motor vehicle crashes.

Objective

To report cases highlighting shattered glass from sideview mirrors as a potential cause of ocular trauma in motor vehicle crashes.

Design, Setting, and Participants

Case series of 3 patients who presented to Grady Memorial Hospital, a level 1 trauma center and tertiary hospital, between May 5, 2017, and July 10, 2017, with ocular trauma as a result of shattered glass from sideview mirrors during motor vehicle crashes. A review of the literature was also conducted. Data were analyzed between July 2017 and August 2017.

Interventions or Exposures

Operation for exploration and repair of open globe in all 3 cases.

Main Outcomes and Measures

Visual prognosis and ocular morbidity postoperatively.

Results

All patients were white men in the age range of 26 to 43 years. This was a retrospective review of 3 of 208 patients who presented to Grady Memorial Hospital after motor vehicle crashes from May 5, 2017, to July 10, 2017. From the time of presentation of the 3 reported patients from Grady Memorial Hospital, all 3 had 2 surgeries inclusive of the initial open globe repair. Patients with this mechanism of injury experienced ocular morbidity, with all 3 cases resulting in uveal prolapse and 2 of 3 resulting in retinal detachments. Among the 3 patients, visual acuities after the second surgery within the first year were hand motion, 20/100, and 20/150.

Conclusions and Relevance

Sideview mirrors can be a cause of serious ocular injuries in motor vehicle crashes. These 3 reported cases, combined with cases previously reported, suggest that this mechanism of ocular injury does occur. Further studies seem warranted to investigate the frequency of these findings and whether any design modifications may help reduce the frequency.

Visual and ocular morbidity in severe open-globe injuries presenting to a regional eye centre in New Zealand

IMPORTANCE

Open-globe injuries (OGI) are a leading cause of monocular blindness world-wide with considerable cost to the individual and society.

BACKGROUND

To characterize the epidemiology, severity and outcomes of OGI treated at a major ophthalmology centre in New Zealand.

DESIGN

Retrospective study.

PARTICIPANTS

A total of 385 eyes of 381 patients over a 10-year period.

METHODS

Eligible patients were identified using diagnosis and surgery codes on hospital discharge summaries. Clinical notes were reviewed to determine patient demographics, injury details, treatments and outcomes.

MAIN OUTCOME MEASURES

Complications of injury, visual acuity at 3 months and final follow-up, and final status of the eye.

RESULTS

The estimated annual incidence of OGI was 2.8 per 100 000. Working-age males predominated but age at injury ranged from 9 months to 90 years. Maori and Pacific peoples were over-represented. Injuries were severe with 58.7% presenting with vision of hand movements or worse. Penetrating injuries (56.4%) were most common, followed by globe ruptures (35.6%). Major complications included retinal detachment (15.8%), enucleation/evisceration (9.1%), phthisis bulbi (9.9%), endophthalmitis (2.6%) and sympathetic ophthalmia (0.26%). Despite the injury severity, 46% of eyes achieved final BCVA of ≥6/12. The Ocular Trauma Score (OTS) was a useful prognostic tool for stratifying severity of injury and predicting visual outcome (Fisher's exact test P < 0.001).

CONCLUSIONS AND RELEVANCE

The incidence and severity of OGI in NZ are comparable to global statistics. Surgical repair can effectively recover vision, predicted well by the OTS. We identified at-risk groups to target with education and prevention strategies.