Tigers can see 6 times better at night than humans.
305
Only about 2% of the world population has green eyes.
36
The colossal squid has the largest eyes in the world.
4
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
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
The human eye blinks an average of 4,200,000 times a year.
233