Diabetic Retinopathy By Sonia Mehta, MD, Vitreoretinal Diseases and Surgery Service, Wills Eye Hospital, Sidney Kimmel Medical College at Thomas Jefferson University Reviewed / Revised Apr 2022 | Modified Sep 2022 View Patient Education Pathophysiology Symptoms and Signs Diagnosis Treatment Prevention Key Points Topic Resources Diabetic Retinopathy (Nonprolifer... Diabetic Retinopathy (Proliferati... Manifestations of diabetic retinopathy include microaneurysms, intraretinal hemorrhage, exudates, macular edema, macular ischemia, neovascularization, vitreous hemorrhage, and traction retinal detachment.