How long it takes to recover from ischemic optic neuropathy is related to the patient’s condition. If the patient’s condition is mild, he or she may recover in about 2 weeks after timely treatment. However, if the patient’s condition is serious, the recovery time will be longer or even impossible. Ischemic optic neuropathy is mainly caused by abnormalities in the blood vessels of the nerve, resulting in a series of damage to the optic nerve due to ischemia and hypoxia, and is divided into anterior ischemic optic neuropathy and posterior optic neuropathy. If the patient’s condition is mild, it is possible to recover in about two weeks after early detection and timely treatment with drugs that nourish the nerves and improve microcirculation, such as methylcobalamin. However, if the patient’s condition is severe and treatment is not timely, the patient’s recovery time will be longer, and may also lead to irreversible damage to the optic nerve, or even blindness, which cannot be recovered. It is recommended that patients with optic nerve ischemic lesions seek timely medical attention to assess their condition and follow medical advice.