Retinal Blood Vessel Changes and Their Link to Vision and Blood Sugar Control in Adults With Diabetic Retinopathy Using OCT Angiography

What this Trial Is About

Researchers are studying retinal microvascular changes in adults with diabetic retinopathy using optical coherence tomography angiography OCTA, a non-invasive imaging method that provides detailed views of the retinal blood vessels. The study aims to understand how these retinal vessel changes relate to visual acuity and blood sugar control HbA1c across different stages of diabetic retinopathy, which is a leading cause of vision loss worldwide. Participants diagnosed with diabetic retinopathy will undergo detailed eye exams including best-corrected visual acuity testing, fundus examination, OCT, and OCT angiography. Retinal vessel density in the superficial and deep capillary layers and the size of the foveal avascular zone will be measured. Blood sugar control will be assessed by recording HbA1c levels. This cross-sectional observational study will be conducted at Sohag Universitys Department of Ophthalmology. During the study, participants will receive a comprehensive eye assessment and blood sugar evaluation. Researchers will analyze retinal microvascular parameters and look for correlations with vision and HbA1c values. The main goal is to measure retinal changes by OCTA at baseline and explore their clinical significance. The study does not involve treatment and participation lasts for the duration of the evaluation visit.

Assessment of Retinal Microvascular Changes by OCT Angiography in Diabetic Retinopathy