VISUAL OUTCOME AFTER PARS PLANA VITRECTOMY IN DIABETIC VITREOUS HEMORRHAGE

Objectives: To determine visual outcome and frequency of complications after pars plana vitrectomy in diabetic vitreous hemorrhage. Methodology: This was interventional case series conducted at department of ophthalmology, Khyber Institute of Ophthalmic Medical Sciences, Hayatabad Medical Complex, Peshawar from January 2013 to June 2014. Known diabetic patients above 16 years of age, having vitreous hemorrhage were included. Standard three ports pars plana vitrectomy (PPV) with membrane peeling, endolaser and without endotamponade by single study surgeon was done in all patients. Best corrected visual acuity was noted pre operatively and on 1st day, 2nd week and 8th week post operatively. P- value <0.05 was considered statistically significant. Post-operative complications and visual improvement were noted at final visit. Results: Total of 50 patients having diabetic vitreous hemorrhage were included in the study. Mean age was 41.4 years. Male patients were 66%. Clear lens was present in 46% patients and cortical lens vacuoles in 36% patients. Fresh vitreous hemorrhage was present in 80%. Baseline and final post-operative best corrected visual acuity logarithm minimal angle of resolution was 1.01± 0.17 and 0.74± 0.25 respectively. The difference in pre and post-operative best corrected visual acuity logarithm minimal angle of resolution was 0.045 which was statistically significant. There were no post-operative complications in 82% patients. Visual improvement was observed in 82%. Conclusion: Most patients with diabetic vitreous hemorrhage regain or retain useful vision after PPV. Many patients may suffer late complications like recurrent vitreous hemorrhage and retinal detachment after successful initial surgery requiring secondary intervention