Candace, I've had what you're describing many times before and then they just go away. My father has had a detached retina in both of his eyes so I knew about the flashing light thing but this is different.

When I was having my eyes checked out one time, I asked the doctor about this and he told me it was an ocular migraine like you had mentioned. I told him that I've never had a headache afterwards though. He didn't seem to be too worried about it. I also always have my eyes dilated so that he can check my retina's out and they've been fine.

I asked my father about this and he also said that he used to get these when he was younger and he would sometimes get a bad headache afterwards. Hopefully in your case it's nothing to worry about.