10 facts about eyes you probably don't know

1. It’s possible to blink five times in a second.

2. Cornea is the only living tissue in the body that does not contain any blood vessels.

3.Our eye can focus on about 50 things per second.

4.Our eye can see 500 shades of grey.

5.A newborn baby will cry, but not produce any tears. Babies do not produce tears until they are around six weeks.

6. One eye is always slightly stronger than the other.

7.The eye muscles are the most active muscles in the human body.

8.It's impossible to sneeze with the eyes open.

9. Under the right conditions, our eye can see the light of a candle 14 miles away.

10. 80% of our memories are determined by what we see.

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10 facts about eyes you probably don't know

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