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Interesting facts about Eyes !!!

Eyes are organs that detect light and convert it into electro-chemical impulses in neurons. The simplest photoreceptors in conscious vision connect light to movement. Here are some interesting Facts about Eyes :- 
1. Healthy eyes are so sensitive to light that a candle burning in the dark can be detected 1.6km (1 mile) away.

2. The human eye can distinguish about 10 million different colors.

3. The cornea in eye is the only living tissue in the human body that does not contain any blood vessels.
Human Eye !!!

4. All babies are color blind when they are born.

5. Vitamin A can help to improve eyesight because it is needed by retina for forming specific metabolite. 

6. Our body has some natural protection for our eyes. Our eyelashes help to keep dirt out of our eyes. Our eyebrows are made to keep sweat from running into our eyes.

7. Blinking helps to wash tears over our eyeballs. That keeps them clean and moist.

8. The shark cornea has been used in eye surgery, since its cornea is similar to a human cornea.

9. The eyeball of a human weighs approximately 28 grams.

10. Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.

11. The reason why your nose gets runny when you are crying is because the tears from the eyes drain into the nose.

12. Human eyes contain a small blind spot where the optic nerve passes through the retina. Our brains use information from the other eye to fill in the vision gap so it is rarely, if ever, noticed.

13. Eyes are composed of more than two million working parts.

Evolution of Human Eye !!!
14. Our eyes are always the same size from birth, but our nose and ears never stop growing.

15. Scientists believe that animal eyes evolved around 500 million years ago, beginning in simple form  but giving a distinct advantage. This advantage led to eyes evolving quickly amongst animals  as those without the ability to see struggled to survive against those that could.

Human eyes can process 36,000 bits of information every hour.

17. Only 1/6th of human eyeball is exposed to the outside world

18. Red and Green are the most commonly confused colours among colour blind people.

19. Colour blindness is 10 times more common in males than females

Structure of Eye !!!

20. The eye is the only part of the human body that can function at 100% ability at any moment, day or night, without rest.
21. Human eyelids and  the external muscles of your eyes need rest, the lubrication of your eyes requires replenishment, but your eyes themselves never need rest.

22. It is impossible to sneeze with eyes open.

23. Human retina contains 120 million rods for “night vision”, and 8 million cones that are colour sensitive and work best under daylight conditions.

24. About half of the brain is involved in the seeing process. Humans are very much visual animals.

25. Human Eyes contribute towards 85% of total knowledge.


  1. wow… interesting facts !! I’ve heard that Men are able to read fine print better than women… its kinda partiality with men :P

  2. Wonderful, thanks for sharing…
    By the way if you have time click my link so I can share
    New Ethos Bright Eyes Eye Drops for Cataracts
    The All Natural Alternative to Invasive Cataracts Surgery

  3. Great information....
    All child are color blind, wow.......


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