Visual Outcome after Pars Plana Vitrectomy in patients with Diabetic Tractional Macular Detachment

Abstract

Purpose: Diabetic retinopathy is a sight-threatening complication of Diabetes Mellitus. Fibrovascular proliferation occurs in advanced diabetic eye disease which later progress to tractional retinal detachment. Indeed, the macular detachment is most serious complication. This study evaluated efficiency of pars plana vitrectomy to remove the fibrovascular proliferative tractional bands. Materials and methods: Our study is a case series of 30 patients presenting to Outdoor of Institute of Ophthalmology, Mayo Hospital, Lahore between 1^st March 2011 and 31^st October 2011. Only those patients fulfilling the inclusion and exclusion criteria were selected after detailed ophthalmological assessment via convenient sampling. In patients with bilateral tractional retinal detachment, only the eye with the worse best corrected visual acuity was selected. Patients underwent simple pars plana vitrectomy, PPV with gas and PPV with oil with or without endolaser on clinical findings and or peroperative condition. Patients were followed up on 1^st post-operative week and later after one month. Results: A total of 30 patients were selected for the study. The pre-operative visual acuity ranged from 3/60 to 6/18 Snellen. 5 patients (18%) showed an improvement of 1 to 2 Snellen lines. The vision of 3 patients (10%) deteriorated and the rest 66% showed no increase or decrease in their pre and postoperative best corrected visual acuity. Key Words: Diabetic retinopathy, macular tractional RD.