If you ever notice pesky dark strands that may resemble anything from a simple speck to a cobweb drifting across your vision, what you're probably seeing is what's known as an eye floater.

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 ...

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