I have not taken topamax, but I just have to say this: if you are having migrains and blurred vision, get yourself to an eye care specialist, because I developed intra-cranial hypertension while on meds, and although they say there are other reasons you get this disease; I strongly intuitively believe it is connected to the meds. Especially if you took too much by accident. And in any case, even if the meds are not involved, if you had what I had, you have to look after it right away, with other medications, or you could go blind. Please take it seriously, and get your eyes checked by a specialist if possible. Even a
normal optometrist can look into your eye and see if there is something wrong going on. That is what happened to me. I went for a regular eye check, and she sent me right away to a specialist, because I was on medications, and because she could see that I had a serious problem. So please check it out right away!