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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There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
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
Sheep, goats, octopuses, and toads have rectangular pupils.
7
If the human eye was a digital camera, it would have 576 megapixels.
25
Poor eyesight (myopia) is associated with higher IQ.
232
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
The human eye blinks an average of 4,200,000 times a year.
233