Sorry to hear about your ON. I too had 20/20 or better vision my whole life until my first MS symptom, ON. It took almost one full year for me to get to about 90% normal for that eye. Two years later I got ON in other eye, but I knew what it was and got roids right away. It did not ever get as bad as the first, but it also did not abate like the other, so now I have about 90% normal in left eye and 75% or worse in left eye. Glasses really will not help cause it is the nerve and not the shape of the eye. I have found that tinted glasses help me with light sensitivity though. Maybe your case is different, but my opthamologist just said it was just a nuisance that I would have to deal with (your screwed I heard)
. The supplementation of B12 was suggested here on this site (Jimmylegs I believe) It did seem to help a bit and I continue with B12 & B complex daily.
Good luck with it. ON SUX!