• The eye of a human can distinguish 500 shades of the grey.
• The cornea is the only living tissue in the human body that does not contain any blood vessels.
• The eyeball of a human weighs approximately 28 grams.
• Sailors once thought that wearing a gold earring would improve their eyesight.
• The conjunctiva is a membrane that covers the human eye.• Babies’ eyes do not produce tears until the baby is approximately six to eight weeks old.
• The reason why your nose gets runny when you are crying is because the tears from the eyes drain into the nose.
• Some people start to sneeze if they are exposed to sunlight or have a light shined into their eye.
• It is impossible to sneeze with your eyes open.
• Blinking helps to wash tears over our eyeballs. That keeps them clean and moist.
• The eyes blink over 10,000,000 times a year!
• Our eyelashes help to keep dirt out of our eyes.
• Our eyebrows are made to keep sweat from running into our eyes.
• The study of the iris of the eye is called iridology.
• Men are able to read fine print better than women can.
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