I am putting this topic here because I have Epilesy and it may be connected. I get these things but hardly ever a headache afterwards so I can't Really say it's Migrane, not classicly anyway.
I get these THINGS and I hate it when it happens. I have to go lay down in a dark room until it's over. Recently, in the past 2 weeks I seem to be getting them at least once a day, usually when I first wake up. I haven't had one in about a year before this. I JUST had one an hour ago and my vision is still a bit blurry. I have had these things since I was about 14. My Dad had them too. We often talked about it but neither of us talked to a doctor about it.
BUT here is the BEST animation of one I've ever seen and a really good explanation of what they are:
http://www.moondragon.org/health/dis...esscotoma.html