Biomarkers visible on OCT angiography could help detect progression through the stages of diabetic retinopathy, according to data published in Frontiers in Ophthalmology.“Several studies have demonstrated the utility of OCT-A in characterizing the severity of DR using microvascular parameters,” Rachel Liu, a medical student at Vanderbilt University School of Medicine, and colleagues wrote. “Despite these promising findings, there are limitations in the current body of literature. Most studies on OCT-A and DR have been cross-sectional, providing only a snapshot of