hi dv, i have never taken solumedrol but i wondered if you take any zinc? zinc is good for the eyes and a lack of it can cause optic neuropathy. ms patients typically have less zinc in their systems, with values in the low to mid teens. healthy controls have 18umol/L
when zinc is depleted, uric acid goes down. uric acid is another thing that's low in ms-ers (as in, ms average 194, versus 290 in healthy controls).
anyway, might be something to consider for the future, although if this problem has been with you for a long time it might be harder to deal with using nutrition.