An ostriches eye is bigger than its brain.Dogs can’t distinguish between red and green.Reading in dim lighting does not damage your eyes, but it may tire them out.94% of visible premature-aging around the eyes is caused by UV damage.When you read or stare at a computer, you blink less often resulting in tired eyes.People generally read 25% slower on screen than on paper.About half of the human brain is dedicated to vision and seeing.Our eyes close automatically to protect us from perceived dangers.One of the most common cosmetic injuries is poking the eyeball with a mascara wand.It’s impossible to sneeze with your eyes open.The space between your eyebrows is called the Glabella.Your eyebrows prevent sweat dripping into your eyes.We have all have unseen, harmless microscopic creatures living in our eyelashes.Your eyelashes keep dirt out of your eyes.If you lined up all the eyelashes shed during one human life, they would measure 98 feet long.Eyelashes have an average lifespan of five months.The only cells that survive from the time you are born until death are in your eyes.80% of our memories are determined by what we see.Blind people can see their dreams as long as they weren’t born blind.The older we get, the less tears we produce.Newborn babies can see objects about 8-15 inches away most clearly.Babies do not produce tears until they are around six weeks old. A newborn baby will cry, but not produce any tears.Colour blindness is more common in males.Although our nose and ears keep growing throughout our lives, our eyes remain the same size from birth.Your eyes start to develop just two weeks after conception.Contrary to urban myth, no contact lenses can become ‘lost’ behind your eye due to the structure of your eyeball.Heterochromia refers to a condition where eyes are two different colours.In the right conditions and lighting, humans can see the light of a candle from 14 miles away.Research has found that a tie tied too tightly can increase the risk of glaucoma in men.Diabetes is the number one cause of blindness in adults in the UK.During a sight test, health conditions including diabetes and high blood pressure can be detected.Blue-eyed people share a common ancestor with every other blue-eyed person in the world.
Even if no one in the past few generations of your family had blue or green eyes, these recessive traits can still appear in later generations.The first blue-eyed person is said to have lived 6,000-10,000 years ago.The world’s most common eye colour is brown.With proper care, it takes only about 48 hours to repair a minor corneal scratch. We have two eyeballs in order to give us depth perception – comparing two images allows us to determine how far away an object is from us.On average, you will blink approximately 4,200,000 times in a single year.If the human eye was a digital camera, it would have 576 megapixels.Red-eye in photos is caused by light from the flash bouncing off the capillaries in your eyes.The human eye can function at 100% at any given moment, without needing to rest.A blink typically lasts 100-150 milliseconds.The eye is the fastest muscle in your body – hence why when something happens quickly, we say ‘in the blink of an eye!’.You are likely to blink more often when you are talking.In a single second, it’s possible to blink five times.You see things upside down - it is your brain which turns the image the right way up.Our eyes function like a camera, capturing light and sending data back to the brain. You actually see with your brain, not your eyes.In a very basic form, eyes are thought to have first developed in animals around 550 million years ago!.We’ve listed 101 interesting facts that you may not know about eyes! How much do we really know about them, and how they work? We rely on them every day, yet we don’t give them much thought until something goes wrong and our vision is affected.
Our eyes are one of the most fascinating and complex parts of the body.
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