Optic neuritis returns to normal after weeks or months of aggressive treatment. Optic neuritis is an inflammatory lesion of all the optic nerves and occurs mainly in young and middle-aged people. It is usually associated with inflammatory infections, autoimmune diseases, and acute and chronic infectious diseases. Recovery can be expected within a few weeks for those who are actively treated. If the patient’s condition is poor, the recovery time may be prolonged, and it may take several months after the onset of the disease for the patient to return to normal. Recovery time varies depending on the patient’s physical condition and treatment. Most patients with optic neuritis recover after active treatment. However, if optic nerve atrophy occurs, the prognosis is worse. It is recommended that patients go to the hospital for timely treatment after the onset of the disease.