自胰岛素广泛应用以来,糖尿病患者生命延长,糖尿病性视网膜病变发病率较前增加。同时由于抗菌素及其他防盲措施的发展,因感染或其他原因造成失明的发病率下降,故近来糖尿病性视网膜病变已成为失明的重要原因之一。糖尿病性视网膜病变有非增殖性及增殖性两种。前者眼底有微血管瘤、出血斑、丝棉状白斑及“硬性渗出”,常因发生黄斑水肿而视 Since the widespread use of insulin, diabetes patients prolonged life, the incidence of diabetic retinopathy increased compared with the previous. At the same time, as a result of the development of antibiotics and other anti-blind measures, the incidence of blindness caused by infection or other reasons has dropped, so that recently diabetic retinopathy has become one of the important causes of blindness. Diabetic retinopathy are non-proliferative and proliferative two. The former fundus micro-hemangioma, hemorrhagic spots, cottony white spots and “hard exudate”, often due to the occurrence of macular edema