Nonproliferative Diabetic Retinopathy (NPDR) Diabetic retinopathy is a retinal vascular disorder characterized by typical microvascular funduscopic changes. These typical funduscopic lesions can be broadly characterized as either nonproliferative or proliferative retinopathy with varying degrees of severity in each subset. They can either precede or follow alterations in retinal function thereby highlighting the importance of timely
Diabetic Retinopathy Study (DRS) The diabetic retinopathy study (DRS) was undertaken in 1971 to determine whether photocoagulation helps prevent severe visual loss from proliferative diabetic retinopathy and if there was a clinically significant difference in the efficacy and safety of argon versus xenon photocoagulation for proliferative diabetic retinopathy.
Duration of Diabetes The single best predictor of diabetic retinopathy is the duration of the disease.21–28 Among younger-onset patients with diabetes, the prevalence of any retinopathy was 8% at 3 years, 25% at 5 years, 60% at 10 years, and 80% at 15 years. The prevalence of proliferative diabetic retinopathy (PDR) was 0% at 3
Diabetes mellitus (DM) is a major medical problem in the United States and worldwide. The disease has tremendous social and economic impact as it affects individuals in their economic productive years. It is estimated that societal costs related to the disease exceed a 100 billion dollars per year. Diabetes remains a leading cause of newly