10 Crazy Facts About Human Eyes.... ( you will wonder )

[Queen Esther]

10  Crazy Facts About Human Eyes....  ( you  will  wonder )

These are the top 10 Facts you probably didn't know about  Your eyes.

1. Eyes heal quickly!  With proper care, it only takes about 48 hours for the eye to repair a corneal scratch. 80% of vision problems worldwide are avoidable or even curable.

2. Newborns don’t produce tears and they’re color blind at birth. They make crying sounds, but do not produce any tears, tears don’t start flowing until they are about 5-12 weeks old.

3. Doctors have yet to find a way to transplant an eyeball. The optic nerve that connects the eye to the brain is too sensitive to reconstruct successfully.

4. Some people are born with two differently colored eyes. This condition called heterochromia.

5. If your eyes are blue, you share a common ancestor with every other blue-eyed individual in the world. The very first person to ever have blue eyes lived around 6,000 to 10,000 years ago.

6. Your eyes are about 1 inch across and weights about 28 grams.

7. The human eye can distinguish about 10 million different colors. If the human eye was a digital camera it would have 576 megapixels.

8. Your eyelashes keep dirt out of your eyes and your eyebrows prevent sweat dripping into your eyes.

9. Although the function of tears is to keep eyes clean, scientists don’t understand why we cry when we are upset.

10. While a fingerprint has 40 unique characteristics, an iris has 256. This is why retina scans are increasingly being used for security purposes.