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.
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.
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!
The study of the iris of the eye is called iridology.
The shark cornea has been used in eye surgery, since its cornea is similar to a human cornea.
The number one cause of blindness in adults in the United States is diabetes.
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.
The conjunctiva is a membrane that covers the human eye.
Sailors once thought that wearing a gold earring would improve their eyesight.
Research has indicated that a tie that is on too tight cam increase the risk of glaucoma in men.
People generally read 25% slower from a computer screen compared to paper.
Men are able to read fine print better than women can.
* The giant squid has the largest eyeball on the face of the earth. At 18 inches across, it's about the size of a beach ball.
* An ostrich eye is only two inches across, but it weighs more than its brain.
* An ant has two eyes, each of which is made up of many smaller eyes. This type of eye is called a compound eye.
* A worm has no eyes at all.
* A chameleon's eyes can look in different directions---at the same time!
* Unlike humans, guinea pigs are born with fur and with their eyes open.
* Babies cry but don't produce tears until one to three months after birth.
* Each of our eyelashes has a "life span of approximately five months.
* Of all the muscles in our body, the eye muscles are the most active.
* An owl can see a mouse moving more than 150 feet away, with light no brighter than candlelight.
