Diabetic retinopathy is the most common diabetic eye disease and a leading cause of blindness in American adults. Early diabetic retinopathy usually has no symptoms. However, worsening diabetic retinopathy can lead to visual loss and blindness. Diabetic retinopathy is the most common diabetic eye disease and a leading cause of blindness in American adults. The retina is the like the film in a camera; in which it is the light sensing film on the back of the eye that captures the images. In diabetic retinopathy, blood vessels break and leak, resulting in bleeding and leakage of fluid. This results in poor oxygen supply to the eye; new, abnormal blood vessels grow, which are weak and bleed. Treatment includes laser, injections, or surgery.