视网膜静脉阻塞是眼科常见眼底病变。病例间在视功能损害程度、予后及并发症的发生率等方面,有很大差异。近年来已引起眼科医生的关注,在实验研究和临床观察等方面有较多报导,现仅就目前一些新的观点,结合临床加以叙述。一、病因:大致可分为四类。1.静脉持续性受压,内皮增生、管腔狭窄,致该处形成血栓。由于视乳头筛板处及视网膜动静脉交叉处,动静脉毗邻,并为一共同的结缔组织鞘膜包绕,当动脉硬化管壁增厚时,压迫相邻静脉,则发生静脉阻 Retinal vein occlusion is a common ocular fundus lesions. There was a big difference in the degree of visual impairment, post-implantation complications and the incidence of complications. In recent years, it has attracted the attention of ophthalmologists. There are more reports on experimental research and clinical observation, etc., and only some current new opinions are combined with clinical description. First, the cause: can be divided into four categories. 1. Continuous venous pressure, endothelial hyperplasia, stenosis, resulting in the formation of thrombosis. Due to the optic disc and retinal retinaculum at the intersection of arteriovenous vein, arteriovenous adjoining, and a common connective tissue sheath, when the arterial wall thickening, oppression of adjacent veins, the occurrence of venous resistance