Ultra-Widefield Protocol Enhances Automated Classification of Diabetic Retinopathy Severity with Optical Coherence Tomography Angiography
Purpose To assess the diagnostic utility of retinal nonperfusion to classify eyes based on diabetic retinopathy (DR) severity on optical coherence tomography angiography (OCTA). To determine whether wider field of view (FOV) OCTA protocols enhance the diagnostic utility of retinal nonperfusion in the classification of DR severity. Design Retrospective cross-sectional study Subjects Diabetic patients undergoing ultra-widefield OCTA imaging at one academic retina practice Methods Ultra-widefield OCTA images with 100 degree FOV were obtained from 60 eyes. Eyes were grouped as diabetes without retinopathy (DWR), nonproliferative diabetic retinopathy (NPDR) or proliferative diabetic retinopathy (PDR). The ratio of nonperfusion (RNP) was expressed ...
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