In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
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.
22
The colossal squid has the largest eyes in the world.
4
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The human eye blinks an average of 4,200,000 times a year.
233
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
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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