Case-control study of risk factors for no light perception after open-globe injury: eye injury vitrectomy study

Retinal Detachments after Open-Globe Injury: Risk Factors and Outcomes

PURPOSE

To identify risk factors for retinal detachment (RD) after open-globe injury (OGI) and evaluate outcomes of RD repair after OGI.

DESIGN

Case-control study.

PARTICIPANTS

Overall, 769 patients presented with 786 OGIs, which were surgically managed with ≥ 30 days of follow-up. Of the 786 eyes, 223 developed RD, the other 551 served as controls, and RD status of 12 eyes was unknown.

METHODS

A retrospective chart review was performed of all OGIs presented to the University of Michigan between 2000 and 2022. Multivariable regression identified risk factors for RD after OGI and predictors of poor vision after RD repair. Kaplan-Meier analysis estimated time from OGI to RD.

MAIN OUTCOME MEASURE

Predictors of visual outcome after RD repair after OGI.

RESULTS

After OGI, 223 (28.4%) of 786 eyes were diagnosed with RD, with > 73% diagnosed within a month. Predictors of RD include posterior injury (zone II vs. I odds ratio [OR], 1.60 [95% confidence interval {CI}, 1.04-2.46]; P = 0.0331; zone III vs. I OR, 2.29 [1.53-3.41]; P < 0.0001), vitreous hemorrhage (OR, 2.29 [1.54-3.1]; P < 0.0001), and presenting acuity worse than count fingers (CFs) (OR, 2.65 [1.69 - 4.16]; P < 0.0001). Retinal detachment repair took place in 142 of 223 eyes. The mean logarithm of minimal angle of resolution visual acuity (VA) improved from 2.3 ± 0.8 to 1.7 ± 0.9 after RD repair at 6-month follow-up, with 51.2% of eyes achieving CF or better vision. Single surgery anatomic success rate was 69.7% and final anatomic success was 88%. Predictors of vision worse than CF include history of ocular surgery (OR, 0.32 [0.11-0.94]; P = 0.039), proliferative vitreoretinopathy (PVR; OR, 0.39 [0.16 - 0.92]; P = 0.032), aphakia (OR, 0.25 [0.08 - 0.77]; P = 0.016), and redetachment (OR, 0.26 [0.1 - 0.63]; P = 0.003).

CONCLUSIONS

Most RD occur within the first month after OGI. Patients with posterior injuries, vitreous hemorrhage, or poor presenting VA were more likely to develop RD after OGI. Anatomic success was achieved in the majority, as was final VA of CF vision or better. History of ocular surgery, PVR at time of repair, aphakia, and redetachment were risk factors for a poor outcome.

FINANCIAL DISCLOSURE(S)

The author(s) have no proprietary or commercial interest in any materials discussed in this article.

An interpretable model predicts visual outcomes of no light perception eyes after open globe injury

BACKGROUND

The visual outcome of open globe injury (OGI)-no light perception (NLP) eyes is unpredictable traditionally. This study aimed to develop a model to predict the visual outcomes of vitrectomy surgery in OGI-NLP eyes using a machine learning algorithm and to provide an interpretable system for the prediction results.

METHODS

Clinical data of 459 OGI-NLP eyes were retrospectively collected from 19 medical centres across China to establish a training data set for developing a model, called 'VisionGo', which can predict the visual outcome of the patients involved and compare with the Ocular Trauma Score (OTS). Another 72 cases were retrospectively collected and used for human-machine comparison, and an additional 27 cases were prospectively collected for real-world validation of the model. The SHapley Additive exPlanations method was applied to analyse feature contribution to the model. An online platform was built for real-world application.

RESULTS

The area under the receiver operating characteristic curve (AUC) of VisionGo was 0.75 and 0.90 in previtrectomy and intravitrectomy application scenarios, which was much higher than the OTS (AUC=0.49). VisionGo showed better performance than ophthalmologists in both previtrectomy and intravitrectomy application scenarios (AUC=0.73 vs 0.57 and 0.87 vs 0.64). In real-world validation, VisionGo achieved an AUC of 0.60 and 0.91 in previtrectomy and intravitrectomy application scenarios. Feature contribution analysis indicated that wound length-related indicators, vitreous status and retina-related indicators contributed highly to visual outcomes.

CONCLUSIONS

VisionGo has achieved an accurate and reliable prediction in visual outcome after vitrectomy for OGI-NLP eyes.

Open Globe Injury in a Tertiary Hospital of Northern Thailand: No Vision Survival and Ocular Trauma Score

Purpose

To determine characteristics and factors associated with no vision survival (included no light perception, enucleation, and evisceration) following open globe injury (OGI) and to correlate the proportion of final vision to predictive values of ocular trauma score (OTS).

Patients and Methods

The medical records of consecutive patients diagnosed as OGI between January 2015 and December 2020 were retrospectively reviewed. Data collected included demographics, mechanisms and modes of injuries, ophthalmic presentations, managements, and visual outcomes at the final visit.

Results

Three hundred and seventy-one patients with a mean (standard deviation, SD) age of 44.0 (17.4) years were included. Male with workplace injury was the most frequent scenario. High-velocity metallic objects were the predominant causative materials. Following treatments, fifty-six eyes (14.9%) obtained no vision survival. Factors associated with no vision survival following OGI were low presenting vision, globe perforation, larger wound, presence of relative afferent pupillary defect, retinal detachment, and vitreous hemorrhage. Compared to OTS predictive values, eyes in OTS categories 1 and 2 had a lower proportion of no vision survival.

Conclusion

This study identified the importance of workplace injuries. Overall, there were comparable final visions between OTS and this study. However, a reduced proportion of no vision survival among severely injured eyes signifies the challenges of OGI management.

Risk Factors for Enucleation Following Open Globe Injury: A 17-Year Experience

Purpose

At the time of open globe injury (OGI), it may be difficult for clinicians to predict which eyes are at highest risk for requiring enucleation. We performed a 17-year retrospective cohort study to report outcomes and risk factors for enucleation following open globe injuryto better aid clinicians counseling patients at OGI diagnosis.

Methods

A retrospective cohort study of all patients who presented to the University of Michigan with open globe injury (OGI) and were surgically managed between January 2000 and July 2017 was conducted. At least 30 days of follow-up was required. All eyes that ultimately underwent enucleation following OGI were identified and their clinical course analyzed. The main outcome measured was the rate of enucleation after OGI.

Results

There were 587 eyes meeting inclusion criteria. The mean patient age was 40.75 ± 25.1 (range 1-91). 441/585 (75.4%) patients were male. Average follow-up time was 1029.9 ± 1285.9 days. 116/587 eyes (19.8%) required enucleation after OGI, with 81.9% undergoing enucleation less than 30 days from injury. In enucleated eyes, the mean presenting logMAR vision was 2.91 ± 0.47 (Snellen equivalent between hand motion and light perception). The most common mechanism of injury requiring enucleation was globe rupture, 89/116 (76.7%), with 14/116 (12.1%) penetrating injuries and 13/116 (11.2%) perforating injuries. The mean age of patients that underwent enucleation was 45.6 ± 22.5 (range 3-91).

Conclusion

Open globe injuries are often visually devastating and a significant number of cases ultimately require enucleation. Despite emergent closure within 24 hours, 19.8% of eyes managed for OGI at our institution required eventual enucleation. 81.2% of these eyes required enucleation within 30 days of injury. Wound length greater than 10 mm, uveal prolapse, higher zone of injury, IOFB, and RAPD were identified as risk factors that predict future need for enucleation.

Guideline for the treatment of no light perception eyes induced by mechanical ocular trauma

Severe mechanical ocular trauma with no light perception (NLP) predicts a poor prognosis of visual acuity and enucleation of the eyeball. Since the innovative treatment concept of exploratory vitreoretinal surgery has developed and treatment technology has advanced, the outcomes of severe ocular trauma treatment in NLP patients have greatly improved. However, there remains a lack of unified standards for the determination, surgical indication, and timing of vitrectomy in NLP eye treatment. To address these problems, we aimed to create evidence-based medical guidelines for the diagnosis, treatment, and prognosis of mechanical ocular trauma with NLP. Sixteen relevant recommendations for mechanical ocular trauma with NLP were obtained, and a consensus was reached. Each recommendation was explained in detail to guide the treatment of mechanical ocular trauma associated with NLP.

SILICONE OIL-FILLED FOLDABLE CAPSULAR VITREOUS BODY VERSUS SILICONE OIL ENDOTAMPONADE FOR TREATMENT OF NO LIGHT PERCEPTION AFTER SEVERE OCULAR TRAUMA

PURPOSE

To compare the anatomical and functional outcomes of silicone oil (SO)-filled foldable capsular vitreous body (FCVB) and SO endotamponade in vitrectomy for patients with no light perception after ocular trauma.

METHODS

A total of 64 patients (64 eyes) with no light perception caused by severe ocular trauma were divided into FCVB and SO groups based on the surgical treatment. The main outcome measurements were retinal reattachment rate, intraocular pressure, best-corrected visual acuity, and number of operations.

RESULTS

Both the FCVB group (29 eyes) and the SO group (35 eyes) showed significant improvement in postoperative best-corrected visual acuity and intraocular pressure. The two groups showed no significant differences in final intraocular pressure and the retinal reattachment rate. The postoperative vision (≥LP) in the FCVB group was significantly worse than in the SO group (FCVB [4/29] vs. SO [18/35], P = 0.003). However, the number of surgeries in the FCVB group was significantly lower than in the SO group (FCVB [1.10] vs. SO [2.23], P < 0.001).

CONCLUSION

Vitrectomy combined with SO endotamponade shows better short-term improvement in the treatment of no light perception caused by severe ocular trauma. However, SO-filled FCVB can effectively prevent many complications caused by direct SO endotamponade, such as secondary surgeries or SO dependence.

The Ruptured Globe, Sympathetic Ophthalmia, and the 14-Day Rule

PURPOSE

Prophylactic enucleation of a ruptured globe with no light perception within 14 days of injury to prevent sympathetic ophthalmia (SO) has been an established dictum in academic teaching for more than 100 years. This treatment strategy was originally based on observation, speculation, and careful thought, but there was never any scientific proof. This review summarizes and updates the current state of our knowledge about globe rupture and SO, examines the origin and validity of the 14-day rule, and emphasizes the importance of trying to save the traumatized eye whenever possible.

METHODS

A comprehensive literature review of SO and globe rupture was performed.

RESULTS

SO is a rare disorder that may potentially occur following traumatic globe rupture as well as following a variety of other intraocular surgeries. Vitreoretinal surgery may be a more common cause than trauma according to some studies. SO may still occur despite having the eye removed within 14 days of the trauma. A variety of new medications including biologic agents are now available to treat SO with improved efficacy in suppressing the associated ocular inflammation and allowing retention of some useful vision. Removing the traumatized, blind eye may have other important psychological consequences associated with it that require consideration before eye removal is carried out. Retaining the blind, phthisical, disfigured eye avoids phantom vision and phantom pain associated with enucleation as well as providing a good platform to support and move an overlying prosthetic eye. Data on the occurrence of SO following evisceration and enucleation with and without predisposing factors confirms the exceedingly low risk.

CONCLUSION

Most civilian open globe injuries can be successfully repaired with modern, advanced microsurgical techniques currently available. Because of the exceedingly low risk of SO, even with the severity of open globe trauma during military conflicts being more devastating as a result of the blast and explosive injuries, today every attempt is made to primarily close the eye rather than primarily enucleate it, providing there is enough viable tissue to repair. The 14-day rule for eye removal after severe globe ruptures is not scientifically supported and does not always protect against SO, but the safe time period for prophylactic eye removal is not definitively known. In the exceptional cases where SO does occur, several new medications are now available that may help treat SO. We advocate saving the ruptured globe whenever possible and avoiding prophylactic enucleation to prevent the rare occurrence of SO. When an eye requires removal, evisceration is an acceptable alternative to enucleation in cases that do not harbor intraocular malignancy.

Mechanism and prognostic indicators for explosion-related eye trauma: eye injury vitrectomy study

PURPOSE

To explore the clinical features, surgical interventions and prognosis of injured eyes following explosion and to develop the risk factors for poor prognosis.

METHODS

A nested case-control study. To the date of 31 December 2018, 99 explosion-related eye globes were selected from the Eye Injury Vitrectomy Study database, which is a multicenter prospective cohort study and began in 1990s. All cases selected underwent vitreoretinal surgery or enucleation and were followed up for at least 6 months. Clinically meaningful preoperative variables and outcomes were used to develop logistic regression models.

RESULTS

The unfavourable outcomes were defined as silicone oil-filled eyes, phthisis bulbi, enucleation and anatomically restored eyes whose final BCVA is worse than initial vision after 6 months of follow-up. The proportion of unfavourable outcomes was 92.0%, 60.9% and 66.7% in large festive fireworks, detonator and beer bottle groups respective. The anatomic and visual outcome of injured eyes with combined injury of blast wave and projectile were worse than that of ruptured eyes (Fisher's exact = 0.041). The extrusion of iris/lens (OR = 3.20, p = 0.015), PVR-C (OR = 6.08, p = 0.036) and choroid damage (OR = 5.84, p = 0.025) is independent risk factors of unfavourable prognosis for explosion-related eye trauma.

CONCLUSION

The extrusion of iris/lens, PVR-C and choroid damage is the independent risk factors for unfavourable outcomes in explosion-related eye trauma. There is a unique injury mechanism in explosion-related eye trauma.

SUMMARY STATEMENT

Through the nested case-control study, the extrusion of iris/lens, PVR-C, and choroid damage are the independent risk factors for unfavorable outcomes in explosion-related eye trauma. The mechanism of open globe mixture and close globe mixture in explosion-related eye trauma need more cases and participating units to explore together in the future.

Traumatic choroidal injuries - classification, incidence, diagnosis and prognosis twenty-year results of Eye Injury Vitrectomy Study

PURPOSE

To characterize the classification, incidence, diagnosis and prognosis of traumatic choroidal injuries.

METHODS

Subjects were selected from the database of the Eye Injury Vitrectomy Study (EIVS) and were examined for occurrences of different categories of choroidal injuries. Standard photographs were collected. Anatomical and visual outcomes were assessed in patients with greater than 1 year of follow-up. Eyes that had no light perception (NLP) and/or phthisis bulbi were defined as having had unfavourable outcomes. The percentage of eyes with an unfavourable outcome was analysed for different types of choroidal injuries.

RESULTS

Nine categories of choroidal injuries with distinctive features were identified in the EIVS database. The incidence and the percentage of eyes with an unfavourable outcome in each injury category were as follows: suprachoroidal effusion, 21.2% (7.2%); suprachoroidal haemorrhage, 12.8% (11.2%); massive suprachoroidal haemorrhage, 4.0% (64.9%); choroidal avulsion, 4.2% (92.2%); traumatic chorioretinal rupture, 1.8% (13.3%); choroidal rupture, 4.8% (6.8%); choroidal loss, 1.6% (79.3%); choroidal hole, 1.1% (5.3%); and choroidal damage at the wound site, 39.2% (17.7%).

CONCLUSIONS

Ocular trauma can cause a variety of choroidal injuries that have distinctive features, some of which are associated with a high frequency of unfavourable prognoses.

Prognostic factors and long-term outcomes of eye-globe perforation: Eye injury vitrectomy study

PURPOSE

To delineate anatomic and visual outcomes of injured eye globes with perforating, and to develop the prognostic indicators for perforating eyes.

METHODS

The case series study, from a multicenter prospective cohort database. To the date of December 31st, 2018, of 63 perforating globes were selected. All cases underwent vitreoretinal surgeries or enucleations, and were followed up for at least 6 months. Demographic characteristics, basic examination for traumatized eyes, and intraocular tissue damages were recorded by surgery-in-chief. At the follow-up visit, best corrected VA, intraocular pressure, the intraocular tamponade material, retinal anatomic outcome of eye-globes, and phthisis or enucleation were evaluated.

RESULTS

Fifty injured eyes (79%) were caused by sharp objects and 13 eyes (21%) were injured by a missiles. Twenty-two injured eyes can be anatomically restored with final vision of more than 4/200 through vitreoretinal surgery. The PVR-C (OR = 5.67, P = 0.01), area of retinectomy more than 2 times of optic disk (OR = 5.16, P = 0.04), and macular damage (OR = 6.38, P = 0.01) were correlated with unfavorable outcomes.

CONCLUSION

The injured eyes with perforation can be saved through vitreoretinal surgery, the PVR-C, retinectomy more than 2 times of optic disk, and macular damage were independent risk factors for poor long-term prognosis.

Risk Factors and Prognosis of Pediatric Open Globe Injuries without Initial Light Perception

PURPOSE

The aim of this study was to investigate the possible risk factors and prognosis of initial no light perception (NLP) in pediatric open globe injuries (POGI).

PROCEDURES

This retrospective, comparative, interventional case-control study included 865 eyes of POGI patients presenting to a tertiary referral ophthalmic center from January 1, 2011 to December 31, 2015. Eyes were divided into 2 groups: the NLP group included eyes with initial NLP, and the light perception (LP) group included eyes with initial LP or vision better than LP.

RESULTS

The following risk factors were significantly related to initial NLP: severe intraocular hemorrhage (OR 3.287, p = 0.015), retinal detachment (RD; OR 2.527, p = 0.007), choroidal damage (OR 2.680, p = 0.016), and endophthalmitis (OR 4.221, p < 0.001). Choroidal damage is related to remaining NLP after vitreoretinal surgery (OR 12.384, p = 0.003). At the last visit, more eyes in the NLP group suffered from silicone oil-sustained status (OR 0.266, p = 0.020) or ocular atrophy (OR 0.640, p = 0.004), and fewer eyes benefitted from final LP (OR 41.061, p < 0.001) and anatomic success (OR 4.515, p < 0.001).

CONCLUSION

Severe intraocular hemorrhage, RD, choroidal damage, and endophthalmitis were possible predictors of initial NLP in POGI. Choroidal damage was the major factor related to an NLP prognosis. Traumatized eyes with initial NLP could be anatomically and functionally preserved by vitreoretinal surgery.

Predictive factors of enucleation after open globe injuries

BACKGROUND

Trauma is the leading cause of enucleations in the USA. Current information regarding open globe injuries (OGI) is based mainly on data from individual tertiary care centers across the country which might skew the findings towards the population served by these level-one trauma centers. The aim of this study is to evaluate the demographics, characteristics, and risk factors of traumatic enucleations in a large data sample.

METHODS

Descriptive cross-sectional observational study using the National Inpatient Sample (NIS) Database from 2002 to 2013. Inpatients with traumatic enucleations were identified using ICD-9 codes. Chi-square and logistic regression analyses were used to identify differences between the enucleated and non-enucleated cohorts and to evaluate the predictive factors of enucleation in OGIs.

RESULTS

Enucleations were performed in 3020 (6.2%) of 48,563 OGIs identified. The average age in the enucleated cohort for males vs. females was 44.7 vs. 62.2 years. In the USA, the highest number of traumatic enucleations occurred in the 21-40 group (41.8%) and the fewest in the 80+ age group (11.8%). The risk of enucleation decreased across the age groups significantly. Compared with the 21-40 age group, the risk of undergoing enucleation was 15% lower in patients 41 to 60 years of age, 35% in patients 61 to 80, and 40% lower in patients over 80. In total, 5.1% OGIs in women and 6.7% of OGIs in men were enucleated. The risk of enucleation was 29% higher in men than in women. The highest absolute number of enucleations was seen in Whites. Compared with Whites, Blacks had a 63% higher risk of enucleation following an OGI. OGIs with rupture-type injury, endophthalmitis, or phthisis were significantly higher odds to be enucleated.

CONCLUSIONS

The risk of enucleation following traumatic OGI significantly increased for patients who were in the 21-40 age group, of Black race, or of male gender; the risk also increased if the injury was a rupture-type or associated with endophthalmitis or phthisis. The risk of depression was 75% higher in enucleated patients versus non-enucleated patients.

Eye injury registries - A systematic review

OBJECTIVES

Registries are integral to monitoring, surveying, treating, preventing and prognosticating trauma. The quantity and quality of data must justify a change or intervention in treatment and/or preventive strategies and must be collected while balancing the cost and time invested in the registry. This review documents the quality, completeness and operational and funding models for ocular trauma registries worldwide.

METHODS

The databases CENTRAL, MEDLINE, EMBASE and Informit Health Collection were searched using key word and mesh terms for: "Eye injury, "Ocular trauma", "Eye injury prevention", "Eye protection", "Registry". To find relevant unpublished articles and theses, clinicaltrials.gov, Trip, MedNar and Google Scholar were searched using the key words "eye injury" OR "ocular trauma" AND "registry*". No date or language restrictions were applied. The quality of registry data was assessed against published measures including design, operation and data quality.

RESULTS

The electronic search retrieved 528 distinct published articles; 61 articles were assessed for eligibility. Of the 61 articles identified, 28 were eligible to be included in the review, with cross-referencing identifying a further 7 articles. The source of most articles on ocular trauma registries was the United States, followed by Germany and China. Patient follow-up was conducted in 31 studies, with 6 months being the most frequently reported period. Issues with data quality included incomplete data such as presence or absence of eye protection and initial visual acuity. Attrition bias was controlled by the United States Eye Injury Register with follow-up. Patients without follow-up data were removed for some studies and this may have introduced bias.

CONCLUSION

National, state and hospital-based ocular trauma registries have contributed significantly to our understanding of ocular trauma. The United States has the most frequently cited and well-resourced ocular trauma registries. It is anticipated that this review will guide the development of future registries for ocular trauma in order to inform evidence-based prevention strategies and, ultimately, improve visual outcomes. We recommend the development of a consensus guidelines for international ocular trauma registry that includes mechanism and context of injury and visual outcomes, to permit international comparison that can be implemented at low cost with secure data capture.

Clinical characteristics and outcomes of open globe injuries in Japan

PURPOSE

To describe the epidemiology and clinical outcomes of open globe injuries (OGIs) in Japan over 10 years, and examine preoperative factors influencing the visual prognosis after surgery.

STUDY DESIGN

Retrospective, observational, multicenter case-series study.

METHODS

Patients' data were entered into a computerized database for review and statistical analyses. The following parameters were assessed; age, gender, initial and final visual acuity, duration between onset and surgery, presence of lens in the eye, characteristics of injury, presence of ocular complications, and number of surgeries.

RESULTS

The records of 374 eyes with OGI were enrolled. The average age of the patients was 56.8 ± 22.1 years, and the majority of patients were men (73.5%). Compared to the overall cohort, work-related OGI was the most common, associated with significantly better final visual acuity, whereas patients with fall-down OGI showed significantly worse final visual acuity (P < 0.05). Among the types of injury, both the initial and final visual acuity were significantly worse in the rupture group than in the laceration group. Multiple liner regression analyses revealed that the final visual acuity was significantly associated with initial visual acuity, type of injury (rupture), retinal detachment, and proliferative vitreoretinopathy.

CONCLUSION

To predict the visual outcome in patients with OGI, ophthalmologists need to pay attention not only to the initial visual acuity but also to initial ocular conditions, such as the presence of ocular complications.

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

Background. To analyze the effects of factors other than the ocular trauma score parameters on visual outcomes in open globe injuries. Methods. Open globe injuries primarily repaired in our hospital were reviewed. The number of surgeries, performance of pars plana vitrectomy (PPV), lens status, affected tissues (corneal, scleral, or corneoscleral), intravitreal hemorrhage, intraocular foreign body, glaucoma, anterior segment inflammation, loss of iris tissue, cutting of any prolapsed vitreous in the primary surgery, penetrating injury, and the time interval between the trauma and repair were the thirteen variables evaluated using linear regression analysis. Results. In total, 131 eyes with a mean follow-up of 16.1 ± 4.7 (12–36) months and a mean age of 33.8 ± 22.2 (4–88) years were included. The regression coefficients were 0.502, 0.960, 0.831, −0.385, and −0.506 for the performance of PPV, aphakia after the initial trauma, loss of iris tissue, penetrating injury, and cutting of any prolapsed vitreous in the primary surgery, respectively (P < 0.05 for these variables). Conclusions. The performance of PPV, aphakia after the initial trauma, and loss of iris tissue were associated with poor visual outcomes, whereas cutting any prolapsed vitreous in the primary repair and penetrating-type injury were associated with better visual outcomes.

Development of medical treatment for eye injuries in the mainland of China over the past decade

In the article, the development of medical treatment for eye injuries in the mainland of China was reviewed. According to the data provided in Eye Injury Vitrectomy Study (EIVS), 27% of 72 eyes with no light perception (NLP) gained recovery in term of antomy and visual function. Vitrectomy initiated at more than 4 weeks after open eye injury is an independent risk factor for developing PVR. Prognosis of anatomy and visual function of the injured eye with PVR is markedly worse than that without PVR. Serious injuries of ciliary body, choroid and retina are three key parts of the eye with NLP. The concept that the treatment of the eye injury gradually focus on the whole globe is embodied. The data from 13575 in patients with traumatic eyes in 14 hospitals revealed that the rate of immediate enucleation was remarkable reduced with comparison of 20 years ago.

Approach to Management of Eyes with no Light Perception after Open Globe Injury

Loss of light perception (LP) after open globe injury (OGI) does not necessarily mean the patient will have permanent complete visual loss. Findings that seem to be associated reliably with permanent profound vision loss after OGI include optic nerve avulsion, optic nerve transection, and profound loss of intraocular contents, which can be identified with CT/MRI imaging albeit with varying degrees of confidence. Eyes with NLP after OGI that undergo successful primary repair with intact optic nerves may be considered for additional surgery, particularly if there is: (1) recovery of LP on the first day after primary repair; (2) treatable pathology underlying NLP status (e.g., extensive choroidal hemorrhage, dense vitreous and subretinal hemorrhage); (3) NLP in the fellow eye. We counsel patients that the chance of recovering ambulatory vision under these circumstances is very low (~5%).

Risk factors for poor outcomes in patients with open-globe injuries

Purpose

The aim of this study was to identify the risk factors that are predictive of poor outcomes in penetrating globe trauma.

Patients and methods

This retrospective case series evaluated 103 eyes that had been surgically treated for an open-globe injury from 2007 to 2010 at the eye clinic of the University of Virginia. A total of 64 eyes with complete medical records and at least 6 months of follow-up were included in the study. Four risk factors (preoperative best-corrected visual acuity [pre-op BCVA], ocular trauma score [OTS], zone of injury [ZOI], and time lapse [TL] between injury and primary repair) and three outcomes (final BCVA, monthly rate of additional surgeries [MRAS], and enucleation) were identified for analysis.

Results

Pre-op BCVA was positively associated with MRAS, final BCVA, and enucleation. Calculated OTS was negatively associated with the outcome variables. No association was found between TL and ZOI with the outcome variables. Further, age and predictor variable-adjusted analyses showed pre-op BCVA to be independently positively associated with MRAS (P=0.008) and with final BCVA (P<0.001), while the calculated OTS was independently negatively associated with final BCVA (P<0.001), but not uniquely associated with MRAS (P=0.530).

Conclusion

Pre-op BCVA and OTS are best correlated with prognosis in open-globe injuries. However, no conventional features reliably predict the outcome of traumatized eyes.

Clinical features and outcomes of vitrectomy in pediatric ocular injuries-eye injury vitrectomy study

Context:

Severe pediatric ocular injury remains a frequent and difficult problem. Vitrectomy is a major technique that has been used to manage severely damaged eyes. However, limited follow-up studies exist currently.

Aims:

To evaluate the clinical features and predictive factors of visual and anatomic outcomes in Eye Injury Vitrectomy Study (EIVS).

Settings and Design:

Retrospective, consecutive, interventional case series.

Materials and Methods:

Reviewing and analyzing records of children, aged 15 years or younger, who had undergone vitrectomy for eye injuries in EIVS database between January 1997 and December 2009.

Statistical analysis used:

Descriptive analyses and multiple Logistic regressions were employed for all variables using SPSS software (version 17.0, SPSS Inc.).

Results:

Eighty-seven children (89 eyes) with more than 6 months follow-up and complete records identified in EIVS were included in this study. Average follow-up was 12.7 months. The mean age was 9.4 ± 3.8 years. Seventy-seven eyes (86.5%) had open globe injuries, and 12 (13.5%) had closed globe injuries. Seventeen eyes (19.3%) presented with endophthalmitis. Seventy-five eyes (88.2%) presented with visual acuity of 4/200 or worse; however, 42 eyes (47.7%) achieved 4/200 or better vision with anatomical restoration after vitrectomy. Multiple analysis showed that choroidal damage, large scleral wound, and endophthalmitis were significantly associated with unfavorable outcome, the OR values were 16.7 (95% CI: 2.7-102.4, P = 0.002), 10.9 (95% CI: 1.7-71.6, P = 0.013), and 6.6 (95% CI: 1.0-42.4, P = 0.048), respectively.

Conclusions:

Vitrectomy intervention resulted in favorable visual and anatomic outcomes in almost half of the injured eyes. Choroidal damage, large scleral wound, and endophthalmitis were the prognostic indicators of unfavorable outcome.

Visual recovery following open globe injury with initial no light perception

Background

The purpose of this study was to analyze eyes presenting with no light perception (NLP) after open globe injury (OGI) to determine visual outcomes and prognostic indicators for visual recovery.

Methods

The records of consecutive patients with at least 6 months of follow-up presenting with OGI and NLP to a single institution between January 1, 2003 and December 31, 2013 were reviewed for demographics, ophthalmic history, context and characteristics of injury, ocular examination findings, surgical interventions, and follow-up visual acuity. Unpaired t-tests and Fisher’s Exact tests were used for statistical analysis.

Results

Twenty-five patients met our inclusion criteria. The mean age was 50.4±25.5 (range 8–91) years. Four patients (16%) regained vision (hand motion in three patients and light perception in one patient) while 21 patients (84%) remained with NLP or had a prosthesis at final follow-up. Fourteen eyes (56%) were enucleated; nine (36%) were secondary enucleations. Although the sample sizes were small, neither ocular trauma score nor wound size was found to predict visual recovery.

Conclusion

Four patients regained some vision after presenting with NLP due to OGI. These findings suggest that, in select cases, physicians should discuss the possibility of regaining some vision.

Predictive factors for final outcome of severely traumatized eyes with no light perception

Background

An eye injury that causes no light perception (NLP) typically carries an unfavorable prognosis, and NLP because of trauma is a common indication for enucleation. With advances in vitreoretinal surgical techniques, however, the indication for enucleation is no longer determined by posttrauma NLP vision alone. There are limited studies in the literature to analyse the outcome of NLP eyes following open globe injury. The current study was aimed to evaluate the outcome of surgical repair of severely traumatized eyes with no light perception vision as preoperative visual acuity. Secondary objective was to possibly predict the factors affecting the final vision outcome in this eyes.

Methods

Retrospective case analysis of patients with surgical repair of open globe injury over last ten years at a tertiary referral eye care centre in Singapore.

Results

Out of one hundred and seventy two eyes with open globe injury 27 (15.7%) eyes had no light perception (NLP). After surgical repair, final visual acuity remained NLP in 18 (66.7%) eyes. Final vision improved to Light perception/ Hand movement (LP/HM) in 2(7.4%) eyes, 1/200 to 19/200(11.1%) in 3 eyes and 20/50-20/200(14.8%) in 4 eyes. The median follow up was 18.9 months (range: 4–60 months). The factors contributing to poor postoperative outcome were presence of RAPD (p = 0.014), wound extending into zone III (p = 0.023) and associated vitreoretinal trauma (p = 0.008).

Conclusions

One third of eyes had ambulatory vision or better though two third of eyes still remained NLP. Pre-operative visual acuity of NLP should not be an indication for primary enucleation or evisceration for severely traumatized eyes. Presence of afferent papillary defect, wound extending posterior to rectus insertion and associated vitreoretinal trauma can adversely affect the outcome in severely traumatized eyes with NLP. Timely intervention and state of art surgery may restore useful vision in severely traumatized eyes.