Hi Brodie250--

I have something similar, often with zigzaggy moving patterns in my field of vision, usually lasting for about half an hour and sometimes followed by a killer headache.  My dr suggested ocular migraine and i find that if I take an ibuprofen immediately, then preferably lie down for maybe 15 minutes in a darkened room, there's a good chance the headache will never happen.

I have several friends with the same condition so I think it's not too unusual.  Some of them have identified a specific trigger that seems to cause it--like caffeine or chocolate.  I haven't, though glare and stress might be contributors.

A good eye doctor could check your eyes just to make sure there's no problem there, and s/he would no doubt also be familiar with ocular migraine.

Good luck from billyabe