Eye factoids

Your eyes are amazing. They are the most complex organs you possess, except for your brain.

Below is a selection of eye related facts, we hope you find them to be as fascinating as we do!

Did you know...

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.

Around the pupil is a colored muscle called the "iris". Our eyes may be BLUE, BROWN, GREEN, GRAY OR BLACK, because that is the color of the iris.

The white part of our eye is called the "sclera". At the front, the sclera becomes clear and is called the"cornea."

Over the front of our eye is a clear covering called the "conjunctiva".

Just behind the pupil is a lens. It is round and flat. It is thicker toward the middle.

Inside our eye, at the back, is a part called the "retina". On the retina are cells called "rods" and "cones". These rods and cones help us to see colors and light.

The space between your eyebrows is called the glabella.

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

It is impossible to sneeze with your eyes open.

The highest recorded speed of a sneeze is 165 km per hour.

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

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

A human eyeball weighs an ounce.

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

All babies are colour blind when they are born.

In the United States, approximately 25,000 eye injuries occur that result in the person becoming totally blind.

Men are able to read fine print better than women can.

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

If the lens in our eye doesn't work quite right, we can get glasses to help us see. Glasses have lenses in them that work with our eye's own lens to help us see better.

Research has indicated that a tie that is on too tight can increase the risk of glaucoma in men.

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

The eye of a human can distinguish 500 shades of grey.

The eyeball of a human weighs approximately 28 grams.

The number one cause of blindness in adults in the United States is diabetes.

The conjunctiva is a membrane that covers the human eye.

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

The study of the iris of the eye is called iridology.

Our eyes are very important to us, and we must protect them. We don't want dirt, sand, splinters or even fingers to get in our eyes. We don't want our eyes to get scratched or poked. That could damage our sight!

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.

Your eyes blinks over 10,000,000 times a year!

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.

We should never put anything in or near our eyes, unless we have a reason to use eye drops. We would only do that if our doctor or parent told us to use them.

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