I'm no RN or anything, I'm just a CNA. I need an answer Every once in awhile, my left eye starts to get a flashing light that starts @ the outer left corner and I guess you could say quote/unquote, radiates across my eye and almost blinds me. I guess a lil' scared when this hapends. I no longer have high bp because I am finally of medication for it so that my bp is now down to 130/80 for the past year and I am not under ANY stress @ all. What could be causing this?