Cystoid macular oedema after phacoemulsification with and without type 2 diabetes mellitus; a hospital-based clinical prospective trial in Karachi

Objective: to know the outcomes of cystoid macular oedema after phacoemulsification in patients with and without type 2 diabetes mellitus using optical coherence tomography. methods: this non-concurrent,clinical,prospective study was carried out at al-ibrahim eye hospital,karachi,from january to august 2015. after phacoemulsification with injectable posterior chamber intraocular lens implantation,eyes of patients were analysed. the patients were divided into diabetic and non-diabetic groups visual acuity,optical coherence tomography and dilated fundus examination were performed preoperatively (baseline) and post-operative 1st week and 6th week. spss 20 was used for data analysis. results: of the 100 subjects,there were 50(50%) each in diabetic and non-diabetic group. subsequently,14(14%) patients were lost to follow-up,and 86 eyes of 86(86%) patients were analysed. of them,37(43%) were male and 49(57%) were female. the mean age of participants was 52.21±7.43 years (range: 38-62years). the non-diabetic group had 41(47.7%) patients and the diabetic group had 45(52.3%). there was no clinically significant cystoid macular oedema in either group. central foveal thickness > 43.94 µm was observed in 1(2.5%) eye in the non-diabetic group and in none in the diabetic group at 1st post-operative week. at the 6th post-operative week,none of eyes in the non-diabetic group and 2(4.44%) eyes of the diabetic group showed macular oedema. there was no statistically significant difference in mean foveal volume between both groups at 1st week (p=0.896) and 6th week (p=0.230). conclusion: cystoid macular oedema after phacoemulsification was equally present in both diabetics and non-diabetics without any retinopathy. © 2017,pakistan medical association. all rights reserved.