Abstract:·Central retinal vein occlusion(CRVO)is a common retinal vascular disease,macular edema is the major complication and main reason for decreased vision of CRVO.Currently,the most widely used and researched focuses in clinic are laser coagulation,intravitreal injection:triamcinolone acetonide(TA),vascular endothelial growth factor(VEGF)antibody;surgery:radial optic neurotomy,etc.·