A scene as it might look to a person with diabetic retinopathy. Diabetic retinopathy is a leading cause of blindness in American adults. As retinopathy advances, patients may complain of specks, spots or floaters. Central vision may become blurred or go in and out of focus. Some may complain of streaks or blockage of vision if a large hemorrhage occurs inside the eye, and others may notice difficulty seeing at night.

