Association Between Oct-Based Microangiography Perfusion Indices and Diabetic Retinopathy Severity in Patients with Diabetes in Pakistan

Objective: To assess the relationship between capillary perfusion of retinal vessels and severity diabetic retinopathy with help Optical Coherence Tomography angiography.
 Study Design: Cross-sectional study.
 Place Duration Study: Armed Forces Institute Ophthalmology, Rawalpindi Pakistan, from Feb 2020 to Apr 2021.
 Methodology: Seventy-three eyes 37 subjects suffering diabetes had their imaging done Rtvue Avanti OCT angio system. Socio-demographic clinical data was gathered. Subjects were divided into three groups depending upon diabetes. The index (PI) taken as percent area coverage by flow.
 Results: Out a total 73 eyes, 31 (42.5%) none mild Non-Proliferative Diabetic Retinopathy, 19 (26%) moderate severe Retinopathy 23 (31.5%) Proliferative Retinopathy. mean age participants 58.09 ± 10.32 years, best corrected visual acuity 0.35 Blood Sugar Random 200.46 70.71. BCVA showed significant positive correlation Perfusion Index (p=0.026). No association/relationship found in this (p=0.26).
 Conclusion: statistically retinopathy.