Ive been having syptoms that are alot like this and has become one of hte closest things i can find to waht im experencing blacks seem to leave a half sec streak of white reds leave green in same shape of what i was looking at i get visual snow which i also read is a common side syptom eye doctors cant even look in my eye cause ligths hurt and make me flinch and just even up seeing black spot whre they used light for a few all say its been too long and cant be retinal detetach i have had CATs and it came up with nothing ive been dealign with this for about a yr now seems slowing getting mroe and more easier for these afterimages to affect me but no one seeems to know what it is or whats casusing it i thought id ask here on suggestion on what to do next cause form what i expernce this seems to be more and more likly what is going on with me so im lookin for any suggestion onw aht to do next