Poor eyesight (myopia) is associated with higher IQ.
232
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Tigers can see 6 times better at night than humans.
305
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Only about 2% of the world population has green eyes.
36
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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