Eyes facts

The human eye can distinguish about 10 million different colors.

Some women can have a genetic mutation which causes them to see millions of more colors.

People with blue eyes have a higher alcohol tolerance.

If the human eye was a digital camera it would have 576 megapixels.

All blue eyed people can be traced back to one person who lived near the Black Sea almost 10,000 years ago.

We spend about 10% of our waking hours with our eyes closed, blinking.

Goldfish can’t close their eyes as they have no eyelids.

An Ostrich’s eye is bigger than its brain.

Researchers have successfully used the game TETRIS to treat “lazy eye” in adults.

Albert Einstein’s eyes remain in a safe box in NYC.

Your eyes can get sunburned.

Black lemurs are thought to be the only primates, besides humans, to have blue eyes.

Chameleons can move their eyes in two directions at the same time.

Bees have five eyes.

The space between your eyebrows is called Nasion.

Blue eyes tend to be more sensitive to light.

The eye of a giant squid can measure the same as a volleyball ball.

Humans and dogs are the only two species known to seek visual clues from another’s eyes. And dogs only do it with humans.

Dolphins sleep with one eye open.

Some lizards squirt blood out of their eyes as protection against predators.

Cats have three eyelids.

It is impossible to sneeze with the eyes open.

Ommatophobia is the fear of eyes.

Eigengrau (“brain gray”) is the color your eyes see in total darkness.

Night vision goggles are green because the human eye can differentiate more shades of green than any other color.

Carrots don’t make your eyesight better. That was a lie from the British to cover up their technology from the NAZI during WWII.

There’s a laser procedure to change one’s eye color from brown to blue, as blue eyes exist under all brown eyes.

U2 singer Bono wears sunglasses all the time because he suffers from glaucoma, an eye condition.

Your eyebrows renew themselves every 64 days.

It is estimated that only 2% of all humans have green eyes, making it the rarest eye colour.

About half of Americans born at the turn of the 20th century had blue eyes. Today, only about 1 in 6 Americans has them.

In 2014, a student in Taiwan went blind after keeping her contact lenses in for 6 months. A microscopic bug ate her eyeballs.



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