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Background Diabetic macular ischemia (DMI) has a conflicting impact on visual loss in diabetics. OCTA used as a new non-invasive technique allows for identification of several anatomical and vascular abnormalities of diabetic maculopathy. Aim This study aimed to detect quantitative and qualitative OCTA data of Foveal area in diabetic patients with unexplained visual loss. Methods and Material This cross-sectional study enrolled fifteen diabetic patients with unexplained visual loss. They underwent comprehensive ophthalmological assessment, Measurement Best-Corrected Visual acuity (BCVA) using a Snellen chart converted to LogMAR for statistical analysis. And OCTA imaging of the foveal area using AngioVue OCTA. Quantitative data analysed was Foveal Avascular Zone (FAZ) area. Statistical analysis used Descriptive statistics and Pearson correlation were performed. Results A positive significant correlation was noted between LogMAR BCVA and FAZ area (p = 0.004). DMI grade showed significant positive correlation with LogMAR BCVA (p = 0.011). Conclusions The current study demonstrated the significant correlation between FAZ area measured by AngioVue OCTA and BCVA in diabetic patients with unexplained visual loss. In addition, we elucidated Diabetic Macular Ischemia (DMI) as a leading reason for visual loss in diabetic patients by itself.

Optical Coherence Tomography Angiography Features In Diabetic Patients With Unexplained Visual Loss