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
The colossal squid has the largest eyes in the world.
4
The human eye blinks an average of 4,200,000 times a year.
233
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Poor eyesight (myopia) is associated with higher IQ.
232
Tigers can see 6 times better at night than humans.
305