when I had a problem with on there was some swelling in back of the eye rods. you should get it checked out. are you losing some color vision also?
or having any pain in that eye. the eye doc will look into the back of your eye to see if there is problem. steroids sometime relive but not always help dependes on the case. your ms doc should be notified. before I knew about my possible ms the idiot eye doc said about my on '' we don't know know what is making this happen, but it will get better" he really said that. my vision did get better though after about 18mo. I lost color vision and had double vision also.