I used to get headaches every day. And migraines at least once a week. I don't know what caused the migraines but the regular headaches were caused by eye problems, even though I have better than 20/20 vision. Stupid astigmatism. But anyway, I don't get the headaches anymore, just the migraines. I didn't go for any of the corrective lenses either. I think I just trained my eyes to deal with the oddly bending light. That, or my eyes are so fucked up now that it seems normal to see halos around every source of focused light I look at.
Anyway.. no point here.. move along..