Is it like a flash from a camera? because I also have the floaters and flashes..but not black and white, just white flashes like someone just flashed a picture. weird, I have been to my eye specialist and he said it was due to my macular eye condition, but I worry about it. I know that PVD is another cause of flashes, which is just the vitreous gel coming off and nothing to be too concerned about. I hope everything works out for you..Please keep me informed , as I am also wondering about conditions that cause the floaters and flashes..thanks