Optic neuritis: There are two suggestions from your expression "permanent". You may have changes in your optic nerve that are not reversible or you may have multiple sclerosis. It would be best to get the answer from the doctor who used the terminology.
Answered 6/11/2013
5.6k views
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question