The authors propose that floaters are usually diffraction patterns cast on the retina by red blood cells They are the spots that most people occasionally see before their eyes.

If you see blurry shadows, also called floaters, or flashes of light, you could have PVD. As you get older, a gel inside your eye — called vitreous gel — can liquefy over time. It can slowly ...

Sometimes, flashes of light in the eye could signal a severe problem. They may also appear alongside floaters, which are tiny dots or lines that may appear in a person’s vision. The combination ...