There is no specific drug for central retinal vein embolism, and the main measures are treatment of the primary disease, prevention of complications, surgery and other methods. Central retinal vein embolism may be caused by hypertension, diabetes mellitus, carotid artery stenosis or obstruction, cardiac insufficiency, etc. It can lead to different degrees of vision loss, retinal hemorrhage and edema. Therefore, blood pressure control, lowering of blood glucose, and treatment with medications such as prostaglandin E1 lipid microsphere carrier preparations and ranibizumab are needed. If macular edema is complicated by vasculitis, it can be treated with drugs such as glucocorticoids and triamcinolone acetonide; if an area of no perfusion is formed or neovascularization is formed, retinal photocoagulation is needed. Central retinal vein obstruction has a great impact on vision, and it is recommended to go to the hospital in time for treatment.