Both eyes equally, or one eye at times??
Cover one and test to see if same or less/more.
how long does it last?

As kevbo mentioned any new or other sx before or after?


I've had an optical migraine before, it was like fireworks and sparklers going off around me wherever I looked..
I asked co workers if they saw anything weird and no one did, and they didn't know what it might be , so I called eye doc and explained what I was seeing.
They suggested optical migraine, but of course wanted me to come for a check.. it was over with by the time I left work, but I was really wiped out and dizzy afterward. Eye doc did say it could have been a pinched nerve.
I was having on/off neck/shoulder pain due to work.
The episode lasted about 15 minutes or so.. never had any again and never had any migraines before or after that.