I will occasionally see kaleidoscopes that will slide past my vision. I will even still perceive them when my eyes are closed, so I know hat it's caused by something in my brain, and not my vision. It probably only happens about twice a year, and only ever lasts for about 3 minutes, and I can still go about my daily routine when it occurs. It seems to have occurred more often in Supermarkets under the incandescent lights, or on very sunny days, more then any place else. I'm not 100% sure if it is caused from my injury, or from a past experimentation of hallucinogens pre injury. Still the first time I remember it occurring was less then a year post injury. Any one else in this community, ever experience seeing sliding kaleidoscopes.