Anterior ischemic optic neuropathy( AION )is the most common acute optic neuropathy in people over 50 years old, which often causes unilateral acute painless visual loss. Non-arteritis anterior ischemic optic neuropathy(NAION)is the most common type and one of the main causes of blindness or severe visual impairment in the middle-aged and elderly. But at present, because of insufficient understanding of the pathogenesis of this disease, there is still no effective treatment method in clinic. Therefore, it is very important to find a standard and effective treatment method in order to control the disease development and reduce blindness.