<正>视网膜动脉阻塞(retinal artery occlusion,RAO)起病急骤,视力丧失迅速,一经损害,则难恢复,应积极进行抢救治疗。临床可分为视网膜中央动脉阻塞(central retinal artery occlusion,CRAO)、视网膜分支动脉阻塞(branch retinal artery occlusion,BRAO)、