Analysis of Morphological Features and Vascular Layers of Choroid in Diabetic Retinopathy Using Spectral-Domain Optical Coherence Tomography

Abstract
Diabetic retinopathy (DR) is the leading cause of visual impairment in working-age adults worldwide. The disease is characterized by microaneurysms, capillary nonperfusion, and ischemia within the retina, ultimately leading to neovascularization and/or macular edema, both of which can severely compromise visual function.1