Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
If the human eye was a digital camera, it would have 576 megapixels.
25
Only about 2% of the world population has green eyes.
36
The human eye blinks an average of 4,200,000 times a year.
233
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
The colossal squid has the largest eyes in the world.
4
Poor eyesight (myopia) is associated with higher IQ.
232
Tigers can see 6 times better at night than humans.
305