Wednesday, January 28, 2015

DID YOU KNOW THAT

20 amazing facts about the eye and vision Although we often take them for granted, our eyes - an amazing thing. Did you know how many shades of gray, we are able to discern, or how many times you blink a year? Here are some interesting facts about the wonders of our and eye view.


20 amazing facts about eyes and eyesight


Our retina perceives the world upside down, and the brain turns the "picture."
To see the world the way he sees your retina, it is necessary to put prismatic glasses.
20 amazing facts about eyes and eyesight

In addition, the image goes to the retina divided into two parts and distorted.
Each half of the brain receives one half of the image, and then collects all the picture you are used to seeing.
20 amazing facts about eyes and eyesight
The retina does not see red.

Although retinal receptors have red, green and blue colors, "red" receptors perceive only the yellow-green, and "green" blue-green. Brain sochetatet these signals and converts them into the red.
20 amazing facts about eyes and eyesight

Your peripheral (side) vision is very low resolution, and it is almost black and white.
We do not notice this, because during eye movements peripheral parts are filled before you notice a difference. You have blue eyes? All blue-eyed people in the world one ancestor.
20 amazing facts about eyes and eyesight
20 amazing facts about eyes and eyesight

You have brown eyes? All people in the world were originally brown eyes.
Blue eyes appeared a mutation about 6000 years ago. If you are blind, but were born with normal vision, in my dreams you still see the image.When you started reading this sentence, you have missed 6 times. On average we blink 17 times per minute, or 5.2 million times a year. If you are nearsighted, your eyeball is longer than usual. If you suffer from hyperopia, it is shorter than usual. Your eyes are almost the same size as at birth. Newborns see at a distance of about 38 cm. This is about the distance at which the face of the mother during feeding. Your tears acquire a different composition depending on whether the hit mote in the eye, whether you cry or yawn . Your eyes are constantly make quick, abrupt movements, called "microsaccades" that objects do not disappear from your view. The process is called "Troxler's fading" makes static objects disappear if you look at them too long.Microsaccades prevent it. Eyes are using 65 percent of the resources of the brain.
20 amazing facts about eyes and eyesight

20 amazing facts about eyes and eyesight


20 amazing facts about eyes and eyesight


20 amazing facts about eyes and eyesight

20 amazing facts about eyes and eyesight


20 amazing facts about eyes and eyesight

20 amazing facts about eyes and eyesight


20 amazing facts about eyes and eyesight
20 amazing facts about eyes and eyesight

The most used muscles in the body - eye.
They actively any other muscle in your body. At the largest giant squid eyes in the world. The fear of the eye called ommatofobiya. Sitting at the computer does not harm your eyes, it overstrains eye muscles. Your eyes can distinguish about 50,000 shades of gray. The flashes of light that you see when you rub their eyes are called phosphenes.
20 amazing facts about eyes and eyesight

20 amazing facts about eyes and eyesight

20 amazing facts about eyes and eyesight
20 amazing facts about eyes and eyesight

20 amazing facts about eyes and eyesight


20 amazing facts about eyes and eyesight

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