Facts about your eyes

1. Each blink last on average 1/10th of a second.
2. Your eyes are one of the quickest parts of the body to heal and can heal a scratch to the cornea in just 48 hours.
3. Roughly 39 million people in the world are completely blind.
4. An eye weighs approximately 7.1 grams.
5. If someone is born with two different coloured eyes it is called heterochromia.
6. Of all the people with eye issues in the world, 80% could have been avoided or are curable.
7. We blink over 15,000 times a day.
8. The pupil expand and dilate depending on who they are looking at and how they feel about them.
9. The retina perceives the world upside down and then it is turned round to how we see it.
10. It is possible for eyesight to improve over age but this could be a sign that the persons overall health is deteriorating.