Before migraines, I tend to get a visual aura called a scintillating scotoma. It starts in one corner of the eye and spreads throughout the vision of one eye over 15-20 minutes. Once or twice it spread to the other eye but that usually doesnt happen. It looks rather like TV static.
It actually looks quite cool. But it's not enjoyable due to knowing "oh dear, my head's going to be pounding in an hour or so."
Though a few months ago I had an aura and the migraine was one of the headacheless ones, which was really quite weird.
I was talking to a friend about this and thought to bring it up here. Sometimes I also have olfactory auras (is that the right term?). If you ever watch Canadian TV channels you might remember the moments of history commercial about the woman who smelt burnt toast before a seizure -- I might have gotten this wrong though, as its been years since I seen it -- it's like that, but with completely random scents. This doesnt happen though and it always comes with the visual ones, so....
I don't know why, but even with my glasses, my vision is always kind of fuzzy when I first wake up but clears up after a while. Im not sure why this is. I always assumed because of the moisture. I dont use any eye drops though unless I had bacteria in there.