Yeah, sometimes really bad. Usually from bad alcohol combined with energy drinks and dehydration.

I recently started to get double vision also. It's a bit similar but I think from peripheral neuropathy, caused by kidney damage fro artificial sweeteners and T2 diabetes.

For sure dehydration is a key part of visual migraines tho

Yep. Scintillating scotoma caused by Monster energy drinks. Gave up the drinks and they went away.