You deffinately do NOT want a detached retina, so, if that is the reason you Docs don't want to remove your cataracs, then don't do it. Wait until the Neuro/Optho thinks it's safe to do.

I don't know if it's the MS or the ON or both, but of course, ON does cause a weakness in the optic nerves, so it makes sense, since MS causes ON in many of us.