When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
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
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The human eye blinks an average of 4,200,000 times a year.
233
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
Only about 2% of the world population has green eyes.
36