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What is the treatment for optic neuritis?
If a definite cause (such as infection or underlying other disease) is determined, appropriate therapy for that cause can be instituted.
The Optic Neuritis Treatment Trial, a multicenter randomized trial with 15 years of
follow-up, showed that oral steroid (prednisone) alone, had no benefit on recovery to normal visual acuity. High-dose intravenous steroids, which involve some
risks and can have significant side effects in some patients - e.g. elevated blood sugar, depression, insomnia, gastrointestinal symptoms, etc. - did speed up the initial recovery of vision in the acute phase. However, there was no conclusive evidence that oral or intravenous steroids had any long-term benefit on visual acuity,
visual field or contrast sensitivity five years later.