Whatever you do with your MS, NEVER EVER EVER mess with your eyes. Listen to your eyes if they hurt, especially on movement in your eyes.

This is advice I was given by two neuros and my opthalmologist. My optho told me if I ever think there's something wacky going on with my eyes, to just call him and he'll make room for me to get checked the same day if he can.

Call your opthalmologist on monday. Tell them you have eye pain and you want to get it checked out to make sure you dont have optic neuritis.

If you notice your color vision is weird (reds will look desaturated, greens and blues will be difficult to distinguish from each other) or if you notice blind spots in your central vision, you should get to the optho as soon as you can. If they think you need to, they'll get you hooked up to some IV solumedrol (dont take oral prednisone when you have ON, it can cause repeated future episodes of ON)