The Science of Eye Floaters

Those little drifting squiggles you see especially against a bright sky what are they actually,

and why do they move when you try to look at them? Most floaters come

from inside your eye, not from the surface. They are shadows

cast on the retina. The inside of the eye is filled with a

clear gel called the vitreous. Over time, the vitreous can become more liquid

and develop tiny clumps or strands. When light passes through, those clumps block

a bit of light and make moving shadows what you perceive as floaters.

Why do they swim away when you look at them? Eye movements shift