42 Interesting human body facts about the eye

We register over 90 % of total incoming information with our eyes. Tweet This

Eye lens act as filter of the ultraviolet light. If surgically removed, retina can detect it. Tweet This

Reading in feeble light will not do any harm to your eyes. Tweet This

If elderly people at one moment start reading without eyeglasses, they should get their eyes checked for cataract development. Tweet This

Blink lasts less than 1/10th of a second. Tweet This

Women blink more often than men. Several million times a year. Tweet This

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The more you talk, the more you blink. Tweet This

Eyes can heal a corneal scratch in just two days. Tweet This

Tears first appear at age of 1-2 months. Tweet This

Up to 50 million people in the world can’t see. Tweet This

Eye colour, similar to skin colour, depends on the amount of melanin. Tweet This

Biggest obstacle for a successful eyeball transplant is the complexity of the optic nerve. Tweet This

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Rod-shaped cells in your eye detect shapes, and cone-shaped cells: colour. Tweet This

People with heterochromia have two differently coloured eyes. Tweet This

Each eye has a blind spot. Tweet This

Muscles, controlling your eyes, perform most movements. Tweet This

Most wide-spread eye colour is brown. Tweet This

Dogs see colours differently than humans, not distinguishing clearly green, yellow or red. Tweet This

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Diabetes can cause blindness. Tweet This

You read up to 25% slower from a computer screen than on paper. Tweet This

Brain of the ostrich is smaller than any of its eyes. Tweet This

Eyelashes are renewed twice a year. Tweet This

Colossal Squids have eyeballs almost one foot in diameter (28 cm). Tweet This

Some people can see a candle light from 14.5 miles (over 20km). Tweet This

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There have been attempts to transplant shark cornea to humans. Tweet This

Cornea takes the oxygen needed from air, as it has no own blood supply. Tweet This

After brain, eyes are the most sophisticated body part. Tweet This

The Mayans did not spare efforts to make their children become cross-eyed. Tweet This

Most colour blind people are men. Tweet This

Your eyebrows are separated by what’s called the Glabella. Tweet This

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Only 15% of human eyeball is exposed. Tweet This

Quantity of tears diminish with age. Tweet This

Your eyes have around 125 million light sensitive cells. Tweet This

Normally one of your eyes is stronger than the other. Tweet This

When crying, tears drain into nasal passages and nose gets runny. Tweet This

Iris is 8 times more unique than fingerprint. Tweet This

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Red-eye effect on pictures is caused by the capillaries in your eyes. Tweet This

A necktie too tight doubles the risk of glaucoma. Tweet This

When sneezing, eyes involuntarily close. Tweet This

Blinking uses more than 200 muscles. Tweet This

Human eye has still better resolution than digital cameras on the market. Tweet This

The special enzyme in tears lysozyme is capable of destroying most bacteria. Tweet This