International globe and adnexal trauma epidemiology study (IGATES): a report from Central India on visual outcome in open globe injuries and correlation with ocular trauma score.

PURPOSE To evaluate the factors influencing final visual outcome after surgical repair of open globe injuries (OGIs) and to correlate the Ocular Trauma Score (OTS) system. METHODS Prospective cross-sectional study of patients with OGIs from International Globe and Adnexal Trauma Epidemiology Study (IGATES) database at a tertiary referral eye centre in Central India over 2 years. Pre-operative factors affecting final visual outcome and correlation with OTS were evaluated. RESULTS 208 patients had ocular trauma, of which data from 42 eyes with OGIs were reviewed. The majority of the patients were men (32, 76.2%) below the age of 40 (31, 73.8%). Patients were followed up for at least 6 months. Initial visual acuity (VA) was ≥ 20/40; 2 (4.8%), 20/200 to 20/50; 2 (4.8%), 1/200 to 19/200; 7 (16.7%), LP to HM; 26 (61.9%) and NLP (5, 11.9%). Final VA was ≥ 20/40; 1 (2.4%), 20/50 to 20/200; 8 (19.1%), 1/200 to 19/200; 9 (21.4%), LP to HM; 17 (40.5%) and NLP; 7 (16.7%). Univariate analysis of pre-operative variables showed initial VA (p = 0.0004), presence of hyphaema (p = 0.0323), laceration involving cornea visual axis (p = 0.0192) and retinal detachment (p = 0.0299) were significant prognostic factors in final visual outcome. OTS in our study does not fully correlate with international OTS system. CONCLUSIONS Initial VA, hyphaema, visual-axis involving cornea laceration and retinal detachment are significant prognostic factors in OGIs. OTS remains a largely effective tool in counselling trauma patients.