1. The human eye
    can distinguish
    about 10 million
    different colors.
  2. Some women can have a genetic mutation which causes them to see millions of more colors.
  3. People with blue eyes have a higher alcohol tolerance.
  4. If the human eye was a digital camera it would have 576 megapixels.
  5. All blue eyed people can be traced back to one person who lived near the Black Sea almost 10,000 years ago.
  6. We spend about
    10% of our waking hours
    with our eyes closed, blinking.
  7. Goldfish can't close their eyes as they have no eyelids.
  8. An Ostrich's eye is
    bigger than its brain.
  9. Researchers have successfully used the game TETRIS to treat "lazy eye" in adults.
  10. Albert Einstein's eyes remain in a safe box in NYC.
  11. Your eyes can get sunburned.
  12. Black lemurs are thought to be the only primates, besides humans, to have blue eyes.
  13. Chameleons can move their eyes in two directions at the same time.
  14. Bees have
    five eyes.
  15. The space between
    your eyebrows
    is called
  16. Blue eyes tend to be more sensitive to light.
  17. The eye of a giant squid can measure the same as a volleyball ball.
  18. Humans and dogs are the only two species known to seek visual clues from another's eyes. And dogs only do it with humans.
  19. Dolphins sleep with one eye open.
  20. Some lizards squirt blood out of their eyes as protection against predators.
  21. Cats have
    three eyelids.
  22. It is impossible to sneeze with the eyes open.
  23. Ommatophobia is the fear of eyes.
  24. Eigengrau (“brain gray”) is the color your eyes see in total darkness.
  25. Night vision goggles are green because the human eye can differentiate more shades of green than any other color.
  26. Carrots don't make your eyesight better. That was a lie from the British to cover up their technology from the NAZI during WW2.
  27. There's a laser procedure to change one's eye color from brown to blue, as blue eyes exist under all brown eyes.
  28. U2 singer Bono wears sunglasses all the time because he suffers from glaucoma, an eye condition.
  29. Your eyebrows renew themselves every 64 days.
  30. It is estimated that only 2% of all humans have green eyes, making it the rarest eye colour.
  31. About half of Americans born at the turn of the 20th century had blue eyes. Today, only about 1 in 6 Americans has them.
  32. In 2014, a student in Taiwan went blind after keeping her contact lenses in for 6 months. A microscopic bug ate her eyeballs.
  33. At birth, a baby's eye is about 75% of the size of an adult eye.
  34. A rare tumor called a "limbal dermoid" can cause hair to grow out of a person's eyeball.
  35. It takes about 0.2 seconds for your brain to understand the light that reaches your eye.
  36. The cross-eyed silent-film comedian Ben Turpin had his eyes insured for US$100,000 against uncrossing.
  37. 80% of what we learn is through our eyes.
  38. A human eye can detect a candle flame 1.7 miles (2.76 km) away.
  39. Butterflies have 4 eyes, bees have 5 eyes, most spiders have 8 eyes and Caterpillars have 12 eyes.
  40. Myopia is about twice as common in Jews than in people of non-Jewish ethnicity.
  41. Even without moving their eyes, some birds have a 360-degree field of view.
  42. Professional baseball players have an average visual acuity of 20/12, much better than the "good" 20/20 vision most people have.
  43. 2.5 billion people are living with poor vision unnecessarily because they do not have corrective eyewear.
  44. The world economy falls short of $227 billion every year from lost productivity among adults who need glasses.
  45. Illiteracy and poor vision are related. 3 in 4 illiterate adults failed one or more parts of a vision screening, a report found.
  46. In 2017, British doctors found 27 lost contact lenses in a patient's eye.
  47. Women have larger pupils than men.
  48. 90% of Chinese teenagers and young adults suffer from myopia (short-sightedness).
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