20 Fun Facts about the Human Eye That Will Amaze You

If only our eyes could take snapshots of everyday life, we could have amazing 574-megapixel resolution pictures. Often we don’t give a serious thought to our eyes unless our visions start deteriorating in some or the other way. In fact, it is not uncommon to find that people complaining about hazy vision in queues of diabetes clinics.

As we are observing the Eye Donation fortnight from August 25th Aug – 8th Sept, we present some fun facts about the Human eye.

1. The eye lens is photosensitive. Just like that of a camera’s, it adjusts the amount of light it requires for the ideal vision.

2. Just like the pulse, pupils can tell about a person’s excitement level. Both Wider and dilated pupil shows different emotions.

3. The eye becomes tired upon long exposure to electronic screen or even paper books.

4. Eyesight might be affected due to pregnancy hormones. Thankfully, it resolves on its own right after childbirth.

5. Brown eyes are the most common attributes among people in the world.

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6. All the folks with blue eyes supposedly have a common ancestor.

7. Many people have eyes of two different colors. It might be due to an injury, disease or heredity.

8. The first signs of diabetes type 2 are often detected during an eye test. A consultation in a diabetes clinic is required to confirm it later.

9. It is impossible to sneeze with open eyes. It is all due to the nerve arrangement, that makes blinking, a reflex action.

10. Minor eye injury heals within 48 hours with little medical attention.

11. A retinal scan is a better way of identification as iris has 256 unique characters, it is 40 in case of a fingerprint.

12. The presence of two eyes ensures the accurate perception of vision. It enables estimation of the distance of objects.

13. The eyes shut closed as a reflex upon perceiving dangers. It is an automatic response to mitigate injury.

14. Tears are a response to both physical and emotional stimuli. It also protects the eyes from several infections.

15. On an average, the human eye blinks 17-20 times in a minute.

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16. Due to the absence of gravity, it is impossible to cry in space. It will simply get collected in the eyeball and will cause eye irritation.

17. The cornea is the only body part devoid of any blood vessels. It facilitates the proper refractive index in the eyes.

18. The eyes have rod and cone cells. The rod cells enable adjustment of light while cones enable perceptions of colors.

19. Excessive exposure to the sun can cause damage to vision.

20. A baby can only perceive black and white colors at birth, along with few shades of grey.

On this eye donation fortnight, we encourage every healthy individual to consider eye donation indistinct future and primarily to take care of their eyes to enjoy the beauty of the earth around us.

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