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How the Eye Works Video for Kids  

                                                Human Eye Facts

Eyes are the second most complex organ in a human body after the human brain. It is the fastest muscle of your body. You gain approximately 80% of the knowledge by using your eyes. Your eyes are placed in hollow sockets so that they can stay protected. Eyebrows prevent sweat dripping into your eyes and eyelashes keep the dirt out of the eyes. This small organ composed of more than 2 million working parts.

Facts you didn’t know: –

  • On an average, you blink 17 times in a minute and one blink lasts for about 1/10th of a second.
  • The most common eye colour in the world is brown.
  • Your eyes work like a camera. They capture light and send data back to the brain.
  • Human eyes remain the same size from birth.
  • Corneas are the only tissues in your body that does not have blood.
  • A minor corneal scratch takes only two days to heal if taken proper care and rest.
  • Newborn babies cannot produce tears until they are about 4-12 weeks old.
  • If a baby is born with two differently coloured eyes then this condition is called heterochromia.
  • The most active muscles in your body are the ones that control your eyes.
  • Tiny but constant jerking movements made by eyes are called ‘micro saccades’. They stop objects from fading from your vision.
  • You cannot sneeze with your eyes open.
  • People who are born blind cannot see their dreams.
  • Each of your eyes has a small blind spot in the back of the retina where the optic nerve attaches.
  • You eyes weigh about 0.25 ounce.
  • Human eyes start to develop just after two weeks of conception.
  • Only 1/6th part of our eyeball is exposed.
  • The actual function of tears is to keep your eyes clean.
 

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