Diabetic Retinopathy

Abstract
The topics discussed include: the social and public health dimensions of [human] blindness from diabetic retinopathy [DR]; the clinical stages and natural history of DR involving breakdown of the blood-retinal barrier in the absence of visible retinopathy, nonproliferative retinopathy and proliferative retinopathy; theories of the pathogenesis of DR; and treatment of DR.sbd.past and present.