Thursday, June 19, 2014

25 Amazing facts about eye

facts about human eye
Eyes are a great gift of nature. Most of the information we get about our environment is through eyes. It is very complex organ of the body that works in a coordinated fashion with a lot of parts being involved in its function. Here are some of the interesting and amazing eye facts you might not have known so far.
  1. Average time taken to blink an eye is about 1/10th of a second. It is very fast and often out of our control. It goes on unconsciously.
  2. Although science has made much progress in the field of medicine and surgery, with a most body parts being transplanted, doctors are not yet able to transplant an eyeball. The optic nerve that is the connection between the eye and the brain is too sensitive to be reproduced.
  3. On an average, a person blinks about 12 times in a minute, 14,280 times in a single day and about 5.2 million times in a year.
  4. Seeing is not a simple task. It is so complex that half of the brain is involved in this task, to analyze the coming signals and show the right picture at the right time.
  5. Eye muscles are the most active ones of the whole body. The common phrase, ‘in the blink of an eye’ really means something being done at great speed.
  6. More than 80% problems related to eyes and vision are avoidable if proper knowledge for the cure of eyes is given to people. If some problem arises, it is curable.
  7. With passing age, the eye lens loses the ability to focus. That is why people use reading glasses after the age of 43.
  8. Eye lens is quick to adjust the focus of your eye. If you are looking at a distant object and then quickly look at the nearby object, the eye is able to shift the focus to the second object without any delay. Thus, eye’s focus is much better and quicker than a camera.
  9.  Blinking helps us to remove any foreign particles in the eye by covering them with tears. Tears moisten and lubricate the eyes and have anti-bacterial characteristics and prevent eye infections.
  10. More than two million different parts in your body combine to make up the eye. They all work in a coordinated fashion for the proper functioning of the eye.
  11. We are able to distinguish among 10 million different colors with the help of our eyes without any aiding device.
  12. If the strength of human eye is to be measured in terms of megapixels, human eye is of 576 megapixels.
  13. While waking, 10% of our waking time passed with our eyes closed. This is because we keep blinking during that time.
  14. We are able to get the 3D image of objects because of having two eyes. They both work in a coordinated fashion to give us the feeling of depth in our view. This also helps us to determine the distance of an object from our eyes.
  15. The main reason for your eyes being tired while watching a screen is that you blink less often. Lack of water movement in the eyes results in tiredness.
  16. This is amazing to know that our ears and nose keep growing throughout our life but our eyes remain of the same size.
  17. It is impossible to sneeze with our eyes open. This is a defense mechanism of the body to save our eyes from getting anything in while sneezing.
  18. We are able to see only three colors, red, green and blue. All the remaining colors are a mere combination of these three colors.
  19. If you try, it is possible to blink five times in a single second. It would need some practice to excel though.
  20. The position of eyes in our body is amazing. They are fitted in a hollow socket for protection purpose.
  21. Eyes are the second most complex organ of the body after brain. It takes a lot of effort and parts for them to work properly.
  22. The eyes see the object up side down. Our brain turns them up after analysis.
  23.  Fingerprints are used for security purposes because they contain 40 distinguishing characteristics. Our iris and retina in the eye has 256 such unique characteristics. That is why it is becoming more in practice than fingerprints for security purposes.
  24. Overall, we see about 24 million images in our whole life with the help of our eyes.
  25. Whenever we meet a stranger, it takes us 4 seconds before we are able to identify the eye color of the person.

This list is not all. Eyes are so complicated with many details. These are some of the interesting and amazing facts about human eyes. The organ is really full of wonders. We should always be thankful for this great gift of nature.

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