Info on opthalmic migraine

Hi Folks: This is my first time posting here. Last night I was cooking dinner and all of a sudden saw bright, flashing lights and then had a strange zig zag (moving) pattern in my vision. It involved both eyes as I covered one to try to figure out what was happening. I feared I was having a stroke. I sat down a minute and went to call 911 and realized it was starting to improve. The entire episode lasted about 20 minutes. After "googling" I found a video of exactly what I saw and it said it was from an Opthalmic Migraine. So, looking for info about this and possible triggers as to what may have caused it? All I came up with is I had eaten an avocado and they were on the list of migraine causing foods. Anyone have this type of migraine? Thanks in advance~ Dowa

Yes, I have had these types of occurrances since I was about 14...also my mother suffered the same episodes....All of a sudden you will feel like you can only see 1/2 of everything and then gradually you loose focus but you can set your watch to it 20 minutes and they are gone...you sometimes have a slight dull headache and sometimes none at all....it just makes me worry about when the next one is coming and throws me into a panic attack....I have one about every 6 months but I now go to a neurologist every 6 mos and I take verapamil before I go to sleep at night b/c it helps with migraines...the last one I had was in May and it lasted 20 minutes.  I have had to pull of the road when I get one and my mom has had to do the same.....but what I have read about them is that they are not harmful except for the worry that you will have one when you don't want to....Have you had anymore?  Veronica