糖尿病视网膜病变是糖尿病最常见和严重的并发症之一,常发生在病情控制较差的病人,是造成患者失明的主要原因。糖尿病视网膜病变分为两型:背景性视网膜病变(病变局限于视网膜)和增殖性视网膜病变(病变影响玻璃体)。 背景性视网膜病变表现为视网膜微血管瘤、视网膜出血斑、软性和硬性视网膜渗出。视网膜微血管瘤是糖尿病性视网膜病变的早期改变,可见边界清、红或暗红的圆形斑点,持续时间较长,荧光造 Diabetic retinopathy is one of the most common and serious complications of diabetes mellitus, which often occurs in poorly controlled patients and is the main cause of blindness in patients. Diabetic retinopathy is divided into two types: background retinopathy (lesions limited to the retina) and proliferative retinopathy (lesions affecting the vitreous). Background retinopathy is manifested as retinal capillary hemangiomas, retinal hemorrhagic spots, soft and hard retinal exudate. Retinal capillary hemangioma is an early alteration of diabetic retinopathy, showing a clear border, red or dark red round spots, longer duration,