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Monday, September 11, 2017

Awesome Facts About Human Eyes

Awesome Facts About Human Eyes (Interestingawesome.blogspot.com)




Human eyes are one of the most complex and fascinating parts of the body. Almost every animal in the animal kingdom relies on them everyday. The human eye is an organ that reacts to light and has several purposes. As a sense organ , the mammalian eye allows vision . It has astonishing attributes, and can do an amazing number of things. Human eyes are extremely expressive and can be use to detect diseases and to speaks thousand of words with a glance.

 We don’t often give our eyes as much thought as we should, that is until something goes wrong and our vision is affected. Eyes are multipart organs, so it’s really vital to take care of them. But how much do we really know about eyes, and how they work? Let’s come across some interesting facts about eyes.

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  1. Eyes detect light and allow us to see.(Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth)
  2. The human eye can distinguish about 10 million colors  and is possibly capable of detecting a single photon .
  3. Eyes began to develop 550 million years ago. The simplest eyes were patches of photoreceptor protein in single celled animals. Also human eyes start to develop two weeks after we are conceived.
  4. They utilize 65% of your brainpower. They can develop about 36,000 bits of information an hour. They are the second most powerful body part after brain. The real eye is always working and not at all sleeps.
  5. They manage 85% of all the information you will ever get. The estimated weight of a human eyeball is about 28 grams. The most critical part of your eye is as fragile as a wet tissue.
  6. The images that are send to your brain are in reality upside down and backwards. Your eyes adjust in just milliseconds in order to keep stability whenever you move your head. Your pupil change in size in order to let in the correct amount of light. The only element of the body that doesn’t have blood vessels is the cornea. The human eye can differentiate about 500 shades of gray.
  7. The standard human eye is about 1 inch in diameter. Your eyes begin to expand in two weeks after formation. Your eyes are for all time the same size from birth.Also, the human eye weights approximately just under an ounce.
  8. The light sensitive tissue lining the inner surface of your eye is known as the retina, acting in a similar way to film in a traditional camera.Cone cells in the retina detect color while rod cells detect low light contrasts. Examine below image carefully to identify the parts of the the eyes.
  9. The part of the eye that allows us to focus on different things in known as the lens, it changes shapes so we can focus on objects at various distances.
  10. The cornea is the transparent covering of the iris and pupil, along with the lens it refracts light so it can be projected onto the retina.
  11. The colored area around the pupil is called the iris, it controls the size of the pupil and can be colored brown, blue, green or other colors and shades depending on the person.
  12. Each of our eyes has a blind spot that is the effect of the connecting point among the optic nerve and retina. You will never perceive the hole in your image because your eyes do job in cahoots with one another to recompense for each others blind spots.
  13. Eyes heal quickly. With proper care, it only takes about 48 hours for the eye to repair a corneal scratch.
  14. The entire length of all the eyelashes shed by a human in their life is over 98 feet with each eye lash having a life span of about 5 months.
  15. To protect our eyes they are positioned in a hollowed eye socket, while eyebrows prevent sweat dripping into your eyes and eyelashes keep dirt out of your eyes.
  16. Newborns don’t produce tears. They make crying sounds, but the tears don’t start flowing until they are about 4-13 weeks old.
  17. Doctors have yet to find a way to transplant an eyeball. The optic nerve that connects the eye to the brain is too sensitive to reconstruct successfully.
  18. Some people are born with two differently colored eyes. This condition is heterochromia.
  19. The average person blinks 12 times per minute  about 10,000 blinks in an average day. 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. Another cool fact about blink is It’s possible to blink five times in a single second and it will typically lasts 100-150 milliseconds.
  20. Human eyes can process 36,000 bits of information every hour and only 1/6th of human eyeball is exposed to the outside world.
  21. The external muscles that move the eyes are the strongest muscles in the human body for the job that they have to do. They are 100 times more powerful than they need to be.
  22. Colour blind people do see color but confuse certain colors in certain conditions. Red and Green are the most commonly confused colours among colour blind people. And colour blindness is 10 times more common in males than females.
  23. People generally read 25% slower from a computer screen than from paper. Also, Men are able to read fine print better than women can.
  24. It is impossible to sneeze with eyes open.
  25. Human eye will focus on about 50 things per second. But, Human Eyes contribute towards 85% of total knowledge. About half of the brain is involved in the seeing process. Humans are very much visual animals.

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Glad to see you here.  Keep checking interestingawesome.blogspot.com for more awesome facts. And don't forget to share this in your network and let them know how impotent our eyes are.Thanks for reading...!!
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