Facts about Human Eye

 

1. Your eyes blinks over 27,397 times in a days

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

3. Under the right conditions, the human eye can see the light of a candle at a distance of 14 miles.

4. The eye of a human can distinguish 500 shades of the gray.

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

6. The space between your eyebrows is called the Glabella.

7. 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.

8. 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.

9. Around the pupil is a colored muscle called the "iris." Our eyes may be BLUE, BROWN, GREEN, GRAY OR BLACK, because that is the color of the iris.

10. The study of the iris of the eye is called iridology.

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

12. The number one cause of blindness in adults in the United States is diabetes.

13. The cornea is the only living tissue in the human body that does not contain any blood vessels.

14. The conjunctiva is a membrane that covers the human eye.

15. Sailors once thought that wearing a gold earring would improve their eyesight.

16. Research has indicated that a tie that is on too tight can increase the risk of glaucoma in men.

17. People generally read 25% slower from a computer screen compared to paper.

18. Men are able to read fine print better than women can.

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

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

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

22. The most common injury caused by cosmetics is to the eye by a mascara wand.

23. Some people start to sneeze if they are exposed to sunlight or have a light shined into their eye.

24. The highest recorded speed of a sneeze is 165 km per hour.

25. It is impossible to sneeze with your eyes open.