Fundus ischemia is usually seen in fundus vascular diseases, such as retinal vein obstruction or retinal artery obstruction. It is recommended to make a definite diagnosis and go to the hospital for detailed fundus examination including direct fundus examination, OCT examination and retinal fluorescence angiography to clarify the specific situation. If there are localized hemorrhagic spots or neovascularization, symptomatic treatment is required. Retinal laser photocoagulation or intraocular injection of anti-VEGF drugs, such as razumab injection or Compazepine injection, can be chosen for the treatment of fundus ischemic disease. The specific treatment plan will depend on the examination and the severity of the disease, and treatment must be started only after the examination is clear. This disease can have a serious impact on vision and must be detected and treated early.