1)Your eye has the potential to see a candlelight from 14 miles away.
2)The human eye blinks an average of 4,200,000 times a year.
3)The eye of a human can distinguish 500 shades of the gray.
4)The cornea is the only living tissue in the human body that does not contain any blood vessels.
5)Is about 100,000 times more sensitive to light in darkness than they are in bright daylight. People with blue eyes are better able to see in the dark than people with darker ones.
6)Human's are the only animal on the planet to show the white of their eyes.