I have had several problems with these strange rainbows in my vision. The first time it happened it went from 1 eye to the other starting as a small line then growing to a large spot it eventually went away after about 10-15 mins. The second time it lasted maybe a few mins with just small lines here and there in my right eye only. This third time it was a small spot at first growing to a large line that turned into a half circle in my right eye only then it slowly went away. during all of these my vision also blurred a little but it all eventually went away. Any ideas what could cause this? I am a fairly healthy 37 year old man I don't drink or do any type of drugs but I am a smoker,could this be realted?View Thread