If you only had one Eye, everything would appear two-dimensional!
The purpose of two Eyes is to give us 3-D effect-depth perception and wider field of vision on sides.
The muscle that lets your eye blink is the fastest muscle in your body!
It allows you to blink 5 times a second. On average, you blink 15 000 times a day.
It's impossible to sneeze with your eyes open!
When you sneeze, all your bodily functions stop even your heart.
Cornea is the only part of human body that has no blood supply.
It gets the oxygen supply directly from air.