 [ Symptoms ] lights colors and squiggly lines when i close eyes preventing sleep  in a dark room what causes this  am subject to ocular migraines often have trouble sleeping otherwise healthy [ Disease ] upon closing your eyes you may think you see figures lines and even colors this is your eyes adjusting to the lack of light entoptic phenomena they are harmless and you can learn to ignore them if you are worried that it is something else go to an ophthalmologist or optometrist