Hey Rei,
Missed you on chat yesterday. Hope to see you again soon. Yesterday I actually got blurry in my eyes and zig zags with flashing lights. it lasted 15mins and went away. I asked awhile ago my eye dr. and he said its completely normal as long as it doesn't last over 1 hour. I usually get it if when im about to get a headache, but not all the time. Its completely normal :)