Random Facts About Your Eyes!
We don’t often give our eyes as much thought as we should, till something goes wrong and our vision is affected. But when you learn more about eyes, you realize just how amazing they are!
Here are a few facts you may enjoy:
1. Eyes began to develop 550 million years ago. The simplest eyes were patches of photoreceptor protein in single-celled animals.
2. Your eyes start to develop two weeks after you are conceived.
3. Your pupil of your eye expands as much as 45% when you look at someone you love.
4. To protect our eyes they are positioned in a hollowed eye socket, while eyebrows prevent sweat dripping into your eyes and eyelashes keep dirt out of your eyes.
5. Your eyeballs stay the same size from birth to death, while your nose and ears continue to grow.
6. An eye is composed of more than 2 million working parts.
7. Only 1/6 of the human eyeball is exposed.
8. Corneas are the only tissues that don’t have blood.
9. All babies are colour blind when they are born.
10. An eye cannot be transplanted. More than 1 million nerve fibers connect each eye to the brain and currently we’re not able to reconstruct those connections.
11. 80% of our memories are determined by what we see.
12. Eyes heal quickly. With proper care, it takes only about 48 hours to repair a minor corneal scratch.
13. There are about 39 million people that are blind around the world.
14. 80% of vision problems worldwide are avoidable or even curable.
15. Humans and dogs are the only species known to seek visual cues from another individual’s eyes, and dogs only do this when interacting with humans.
16. Some people are born with two differently coloured eyes. This condition is known as heterochromia.
17. Each eye contains 107 million cells and they are all light sensitive.
18. “Red eye” occurs in photos because 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 make it appear red on film.
19. 80% of what we learn is through our eyes.
20. Eyes are the second most complex organ after the brain.
21. The human eye only sees 3 colours – Red, Blue and Green. All other colours are a combination of these.
22. In an average life, eyes sees 24 million different images.
23. Eyes can process about 36,000 bits of information each hour.
24. Your eyes will focus on about 50 things per second.
25. The older we get, the lesser tears we produce.
26. A blink typically lasts 100-150 milliseconds.
27. In the right conditions and lighting, humans can see the light of a candle from 14 miles away.
28. Your eye is constantly making tiny jerking movements called “microsaccades” to stop objects from fading from your vision.