Optic neuritis is a demyelinating disease of the central nervous system, primarily including optic neuritis caused by multiple sclerosis, as well as neuromyelitis optica and retrobulbar neuritis, among others. These diseases are caused by abnormal immune responses of the body and are closely related to immune dysfunction. Therefore, optic neuritis is mainly treated with corticosteroids. Corticosteroids can inhibit the body's immune response to achieve the purpose of alleviating the disease. However, the use of steroids should also pay attention to some related risks. For instance, there might be occurrences of osteoporosis and even osteonecrosis of the femoral head, potential disturbances in electrolyte, fat, and sugar metabolism in the body, the possibility of developing centripetal obesity, and the potential for gastric ulcers. Close monitoring is essential, and other immunosuppressants may be added if necessary. (Use of medications should be under the guidance of a doctor.)