Mind-blowing Interesting Facts About Eyes

Dear Readers, today's topic is "Mind-blowing Interesting Facts About Eyes". The eyes are a very important part of our body. we know that without eyes we can't the beauty of nature our loving ones many other kinds of stuff. even you are still using your eyes to read this article. 

Today we are telling you "Mind-blowing Interesting Facts About Eyes". Hope you like this interesting information about eyes. so let's continue to our article:

Mind-blowing Interesting Facts About Eyes

1. Every person with blue eyes in this world has only one ancestor. The first person with blue eyes lived about 10,000 years ago. This was when every human had only brown eyes.
2. The central opening of your eye is known as the pupil, it changes shape depending on the amount of light.
3. Our eyes have 107 million cells, but only 7 million cells which are known as cones are responsible for identity and detecting color. The remaining 100 million cells are known as rods which are responsible for differentiating between white and black.
4. An eyelid can last anywhere between 100 and 150 milliseconds. This means that a person can blink up to 5 times in a second. This means that the eye muscles are the fastest muscles in the human body.
5. There are 107 million cells in an eye that are sensitive to light. This means that there are 214 million photosynthetic cells in the two eyes.
6. We can say that the sharpest lens in the world is known as the Human eye. They are faster than any known camera lens. While camera lenses take a few seconds to focus on objects at different distances the human eye can focus almost instantly without any noticeable lag.
7. On average, the human eye blinks 17 times every minute. It blinks up to 14,280 per day and produces 5.2 million blinks every year.
8. Our eyes blink more while talking and less than average while we read something.
9. Human eyes can be dazzled. They are extremely complex and it is because of these complexities that they take us by surprise.
10. The human eye has more than 2 million working parts.
11. Human eyes are capable of focusing on 50+ things at any second.
12. Humans don't actually use their eyes to see. This is the brain. Poor vision, blurred vision, etc. are all results of technical problems in the visual cortex of the brain.
13. The range of vision of the human eye is 200 degrees.
14. Only 1/6th part of the eyeball is actually open to the world.
15. The human eye is capable of seeing a candle flame from a distance of 14 miles provided all environmental conditions are perfect.
16. The human eye is capable of processing 36 KB of information each hour.
17. A human eye can see 1 million colors. It also has the extraordinary ability to differentiate between different shades of the same color. For example, the human eye can actually distinguish between 500 different shades of gray.
18. The most active muscles in the entire human body are those muscles that are responsible for controlling the eyes.
19. The extrinsic muscles responsible for eye movement are the strongest known muscles in the entire human body. They really don't need to be that strong. These muscles are 100 times more powerful than the actual force to move the eyes.
20. Human newborns are unable to produce tears until they reach 4 to 13 weeks of age.
21. Human tears are made up of water, mucus, and fat. If none of these three components are present in the right proportion, the eyes become dry. In case the eyes become dry, the brain produces these components in excess.
22. If proper care is provided, a corneal bruise can actually heal completely within 48 hours. This makes the human eye the fastest healing organ in the body.
23. 80% of our memories are determined by what we see.
24. A person can be born with two different color shades. Medically the condition of the eye is known as heterochromia.
25. An eyeball weighs 7.5 grams.
26. The human eye has a static contrast ratio of 100:1 and a dynamic contrast ratio of 1,000,000:1.
27. A cataract is very common and everyone gets it. It is similar to graying hair with age. This means that cataracts set in with age. Under normal health conditions, a person will get cataracts by age 70.
28. The blinking of the eyes is a very important function. This function spreads tears all over the surface of the eye and this, in turn, helps remove debris from the eyes, kills germs, and keeps the eyes moist.
29. Normal humans would have 3 types of cones (cells that perceive color). Thus all humans are called trachomatous. There are some women, however, who go through a process known as mutation known as 4 cones. That's why they can see more than 100 million colors. These females are called tetrachromats.
30. After the brain, the eyes are the most important and complex part of our body, because our eyes are made up of two million different parts.
31. The evolution of the eyes began 550 million years ago. The simplest eyes were patches of photoreceptor proteins in single-celled animals.
32. Your eyes begin to develop two weeks after you conceive.
33. The full length of all the eyelashes a human shed in their life is over 98 feet, with each eye having a lifespan of about 5 months.
34. Our nose and ears continue to grow for many years but our eyes remain the same size from birth to death.
35. An eye is made up of over 2 million working parts.
36. The cornea is the only tissue that does not have blood.
37. The human eye weighs about an ounce and is about an inch across.
38. One eye cannot be transplanted. More than 1 million nerve fibers connect each eye to the brain and we are not currently able to reconnect those connections.
39. Around 39 million people worldwide are blind.
40. Worldwide 80% of vision problems are avoidable or even curable.
41. Humans and dogs are the only species known to receive visual cues from another person's eyes and dogs only do so when interacting with humans.
42. People who are blind can see their dreams if they are not born blind.
43. "Red eye" occurs in photographs because the light from the flash bounces off the back of the eye. The choroid is located behind the retina and is rich in blood vessels, which appear red on film.
44. 80% of what we learn is through our eyes.
45. The eyes are the second most complex organ after the brain.
46. Eyes heal quickly. With proper care, it takes only 48 hours for a minor corneal scratch to heal.
47. A fingerprint has 40 distinct features, but an iris has 256, one reason retina scans are increasingly being used for security purposes.
48. The weight of human eyes is about 8 grams.
49. Your retinas actually see the outside world as upside-down then your brain flips the image for you.
50. Your tears have different compositions, depending on whether something is burning in your eye, or whether you are crying, or yawning.
51. Your eyes continuously make tiny flicks, called "microsaccades," to block objects from your sight. And eventually, your eye can distinguish between 50,000 shades of gray.
52. The light-sensitive tissue lining the inner surface of your eye is known as the retina, which works in a similar way to film in a traditional camera.
53. Rod cells in the retina detect low light contrasts and Cone cells detect color.
54. The part of the eye that allows us to focus on various things known as the lens, it changes shape so we can focus on objects at different distances.
55. The cornea is the transparent covering of the iris and pupil, together with the lens it refracts light so that it can be projected onto the retina.
56. Scientists believe that animal eyes evolved about 500 million years ago, starting out as simple (perhaps just separating light and dark) but offering a distinct advantage. This advantage led to the rapid development of eyes among animals (evolutionary standards), which could struggle to survive against those without the ability to see.

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