Implication of oxidative stress in progression of diabetic retinopathy

Diabetic retinopathy, a severe sight-threatening complication of diabetes mellitus, accounts for a large number of cases of acquired, yet potentially avoidable, blindness. The principal mechanism of its pathogenesis appears to be alterations in the microvasculature of retina as the result of hyperglycemia. The elevated concentration of blood glucose is a harbinger of numerous molecular changes. These lead to various responses that result in...