what is optic neuritis symptoms
1 Optic neuritis is frequently associated with multiple sclerosis. 2  Other causes include infections, autoimmune disease, and injury to the optic nerve. 3  The symptoms of optic neuritis include vision loss, reduced color vision, and pain on movement of the eye with recovery over weeks to a month, in most cases. Other causes include infections, autoimmune disease, and injury to the optic nerve. 2  The symptoms of optic neuritis include vision loss, reduced color vision, and pain on movement of the eye with recovery over weeks to a month, in most cases.