When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
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
Poor eyesight (myopia) is associated with higher IQ.
232
Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
131
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
If the human eye was a digital camera, it would have 576 megapixels.
25