If the human eye was a digital camera, it would have 576 megapixels.
25
Tigers can see 6 times better at night than humans.
305
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Only about 2% of the world population has green eyes.
36
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22