Optic neuritis is generally caused by demyelinating diseases of the central nervous system, such as multiple sclerosis, neuromyelitis optica, and retrobulbar neuritis, all of which can lead to the onset. The main symptoms include a decline in vision, which can affect one eye or both eyes. The treatment of optic neuritis primarily includes: First, the use of corticosteroids, which can alleviate the inflammatory response in the body and help in the recovery of optic nerve functions, is widely applied. Corticosteroids can be used systemically, and if necessary, administered retrobulbarly. Second, the intake of other immunosuppressants and immunoregulatory treatments, mainly during the remission phase, is to prevent relapse. Third, treatment can also involve the use of intravenous immunoglobulin, although it is relatively expensive. Additionally, it is necessary to take some B vitamins for related treatment.