40 Crazy Facts About Eyes

16

1

1Human eyes blink an average of 17 times a minute. This equates to 14,280 times a day or 5.2 million times a year.

2

2Blinking removes debris from the eye’s surface by spreading tears over it. The tears help moisten and lubricate the eyes. They also have anti-bacterial properties.

3

3

Eyes heal quickly. With proper care, corneal abrasions can repair within 48 hours.

4

4Newborns don’t produce tears. While they do make crying sounds, their tears don’t start flowing until they are 4–13 weeks old.

5

5Approximately six in one thousand people are born with heterochromia iridis. This is a condition where the person’s eye are two different colours.

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