Ten Weird, but Interesting Facts About Eyes

The definition that almost all of us are familiar with; is the ball-sized organ in the eye socket that provides vision. The eye consists of three layers. 1-hard layer, 2-iris, 3-net layer. The vision event is formed by the light transitions and light refractions that occur in these three layers. eye of the living their abilities may differ from each other. For example, the eyes of flies are sensitive to movement and have colour discrimination. While humans and apes can perceive special shapes, this is limited in some other creatures, and even some creatures are colour blind. Snails and worms only have the ability to distinguish between light and dark. Let’s take our last example from octopus and squid; Although these creatures can see objects clearly, their eyes do not have the ability to see in 3D. If you thought those nuggets of information were interesting, you will love these…

Colours

How many colours can we see? A healthy human eye has three types of cone cells, each of which can register about 100 different colour shades, therefore most researchers ballpark the number of colours we can distinguish at around a million.2

Females See More Colours

Men and women really don’t see eye to eye, according to a new study. Females are better at discriminating among colours, researchers say, while males excel at tracking fast-moving objects and discerning detail from a distance—evolutionary adaptations possibly linked to our hunter-gatherer past.

Alcohol Dependency

Why might having blue eyes put one at higher risk for alcohol dependency than having brown eyes? One possible explanation is that a gene lying near the OCA2 gene on chromosome 15 carries a mutation that leads to increased alcohol tolerance, and thus a tendency to drink too much.

Megapixels

Find out how well a human eye compares to a cell phone camera. According to scientist and photographer Dr. Roger Clark, the resolution of the human eye is 576 megapixels. That’s huge when you compare it to the 12 megapixels of an iPhone 7’s camera.

Black Sea

Scientists have tracked down a genetic mutation which took place 6,000-10,000 years ago and is the cause of the eye colour of all blue-eyed humans alive on the planet today. They all go back to a person who lived near the Black Sea about 10 thousand years ago.

Blinking

On average, most people blink around 15 to 20 times each minute. That means, while you’re awake, you probably blink: 900 – 1,200 times an hour. 14,400 – 19,200 times a day.

The fish

Since some fish species do not have eyelids, their eyes are open throughout their lives.

Ostrich

Ostrich is the largest bird in the world having the largest eyes in the whole animal kingdom that are even bigger than its brain. An ostrich’s eyes are about 2 inches (5 centimetres) in diameter, i.e. almost the size of a billiard ball.

Tetris

In research, it has been proven that the use of the “Tetris” game in the treatment of lazy eye is beneficial.

Einstein

Not only did the doctor who illegally performed Einstein’s autopsy steal his brain, but he also stole his eyes. He gave the eyes to Einstein’s eye doctor, Henry Abrams. They are kept in a safety deposit box in New York City to this day