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
Sheep, goats, octopuses, and toads have rectangular pupils.
7
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
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
If the human eye was a digital camera, it would have 576 megapixels.
25