Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
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 colossal squid has the largest eyes in the world.
4
The human eye blinks an average of 4,200,000 times a year.
233