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
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269
The human eye blinks an average of 4,200,000 times a year.
233
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Only about 2% of the world population has green eyes.
36
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
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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