Eye Facts

Did you know?

The human eye blinks an average of 4,200,000 times a year.

It's impossible to sneeze with your eyes open.

Our eyes are always the same size from birth, but our nose and ears never stop growing.

Blinking helps to wash tears over our eyeballs. That keeps them clean and moist. Also, if something is about to hit our eye, we will blink automatically.

Our body has some natural protection for our eyes. Our eyelashes help to keep dirt out of our eyes. Our eyebrows are made to keep sweat from running into our eyes.

The shark cornea has been used in eye surgery, since its cornea is similar to a human cornea.

The eyeball of a human weighs approximately 28 grams.

The eye of a human can distinguish 500 shades of the gray.

The cornea is the only living tissue in the human body that does not contain any blood vessels.

Sailors once thought that wearing a gold earring would improve their eyesight.

People generally read 25% slower from a computer screen compared to paper.

All babies are colour blind when they are born.

Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.

The reason why your nose gets runny when you are crying is because the tears from the eyes drain into the nose.

The most common injury caused by cosmetics is to the eye by a mascara wand.

Some people start to sneeze if they are exposed to sunlight or have a light shined into their eye.

Our eyes have many parts. The black part on the front of our eye is called the "pupil." It is really a little hole that opens into the back part of our eyes.