Top Facts About Your Eyes You Probably Didn't Know
Nobody takes the eye as something unusual. However, you can't even imagine, how unique is the human organ of vision. But when you learn more about eyes you realize how amazing and complex they are. Here are a few facts you may enjoy.
Eyes are the most important organs that allow you to perceive the world around you. Only 20% of what we perceive comes through our other senses.
We spend about 10% of our waking hours with our eyes closed, blinking. We blink even more when we talk. It's on average 4,200,000 times a year. And yet one blink isn’t always the same as the next.
Human eyes have a blind spot on a small section of the retina. The optic nerve which carries all the information back into our brain just blocks this section. You never notice it because your eyes work as the good partners, e.g. the other eye covers for its partner’s blind spot. Even if this doesn’t happen, your brain just "connects the dots" according to the surrounding image.
Tears are made of three main components – fat, mucous and water. They contain lysozyme, a fluid that can kill 90 to 95 percent of all bacteria.
When the baby is born, its eyeballs are each 16 millimeters wide. By the time the child turns three, they grow to each be 23 millimeters wide. They reach their maximum size when the teen hits puberty — around 24 millimeters wide.
Before the child reaches its seventh birthday the developing of the eyes is still continues. That's why preschoolers have considerably better chance to improve eye disorders, in particular, lazy eye.
While type 2 diabetes often has no visible symptoms, a simple eye test may help to detect this condition. It can uncover the tiny hemorrhages at the back of the eye which is the sign of diabetes.
Every eye has a lens right behind the pupil which focuses for it like a lens would focus for a camera. It's almost exactly the same size as a plain M&M candy. The lens has the protein filling inside it
Each eye contains 107 million cells which are all light sensitive. Seeing is such a big part of everyday life that it requires about half of the brain to get involved.
Our eyes function like a camera, capturing light and sending data back to the brain. The cells in the retina absorb and convert the light to electrochemical impulses which are transferred along the optic nerve to the brain. The brain translates the image into something we can understand.
It's very frustrating not being able to see without glasses or not being able to see at all. Remember that your eyes have clues to your overall health. Pay attention to them!