Comparative study of visual outcome between open- and closed-globe injuries following surgical treatment of traumatic cataract in children

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Objective:To compare final visual outcomes of surgically treated traumatic cataract between open-globe and closed-globe injuries in children, as classified by the Birmingham Eye Trauma Terminology system.Methods:This is an observational cohort study with permission from Hospital Ethical Committee. We enrolled children meeting specific inclusion criteria, examined their eyes to review any co-morbidities due to trauma, performed surgery for traumatic cataracts, and implanted lenses. The patients were re-examined postoperatively. We classified the cases of traumatic cataract as either open-globe (Group 1) or closed-globe (Group 2) according to the Birmingham Eye Trauma Terminology system and compared visual acuity.Result:Our study cohort of 1076 eyes with traumatic cataracts included 405 eyes in Group 1 and 671 in Group 2. Postoperatively, the visual acuity was >20/60 in 223 (55.3%) and 377 (56.3%) operated eyes in Groups 1 and 2, respectively (p < 0.001, analysis of variance). With further follow-up, >20/60 vision was significantly higher in Group 2 as compared to Group 1 (odds ratio = 1.61; 95% confidence interval = 0.85–3.02). Overall, 600 eyes (55.7%) regained final visual acuity >20/60.Conclusion:Closed-globe injury has more favourable prognosis for the satisfactory (>20/60) visual recovery after effective management of traumatic cataracts in children.

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