Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9
There's a woman named Veronica Seider who had vision 20x better than average. She could identify people more than a mile (1.6km) away.
22
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Only about 2% of the world population has green eyes.
36
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
Tigers can see 6 times better at night than humans.
305
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75