Optic neuritis does not necessarily lead to blindness, but the vast majority of patients cannot return to normal vision without treatment of optic neuritis. 5%-10% of patients may go completely blind, and this type is mainly spinal cord-related optic neuritis, where most patients will go blind, with a particularly heavy onset and sudden blindness in front of the eyes, without even a sense of light. This type of patient is usually treated with hormones or immunosuppressants systemically in addition to herbal medicine, but for idiopathic optic neuritis or multiple sclerosis-associated optic neuritis, with diligent treatment, most can return to normal and will not go blind.