25 Interesting Facts You Didn't Know About Your Eyes

25 Interesting Facts About Human Eyes - Not A Myth

Human eyes are one of the most complex and fascinating parts of human body. Human eyes are extremely expressive and can be used to detect diseases and to speak thousands of words with a glance.

Let's come across facts about human eyes.

The pupil of your eye expands as much as 45% when you look at someone you love.
Human corneas are so similar to shark corneas that they have been used as a replacement in human eye surgery.
Each eye contains 107 Million cells and all of them are light sensitive.
Eyes detect light and allows us to see. (Rod and cone cells in retina allow conscious light perception and vision including color differentiation and perception of depth)
One in every 12 males is color blind.
The human eye only sees three colors: Red,Green, Blue all other colors are combinations of these.
Your eyes are about 2.5 cm across and weight about 8 grams.
The part of the eye that allows us to focus on different things is known as the lens, it changes shapes so we can focus on objects at various distances.'
The colored area around pupil is called the iris, it controls the size of the pupil and can be colored brown, blue, green or other colors and shades depending on the person.
Only one-sixth of the human eye ball is exposed.
10,000 years ago, every one's eyes were brown until someone developed a Genetic Mutation that made their eyes blue. This means that if your eyes are blue, you share a common ancestor with every blue-eyed individual in the world!
In an average lifetime, eyes see 24 Million different images.
While a fingerprint has 40 unique characteristics, an iris has 256. This is why retina scans are increasingly being used for security purposes.
People say "In the blink of an eye" because it's the fastest muscle in the body. We can blink 5 times in a second.
The entire length of all the eyelashes shed by a human in their life is over 98 feet with each eye lash having a life span of about five months.
The eyes on average 17 times per minute. 14,280 times per day and 5.2 Million times per year.
Eyes can process 36,000 Bits of information each hour.
Eyes begin to develop 550 Millions years ago. The simplest eyes were patches of photo-receptor protein in single-celled animals.
Brown eyes are actually blue underneath the brown pigment. And as a result there exists a Laser Procedure to turn brown eyes blue permanently.
Your eyes will focus on about 50 Things per second.
To protect our eyes they are positioned in a hollow eye socket, wile eyebrows prevent sweat dripping into your eyes and eyelashes keep dirt out of your eyes.
The images which our eyes send to our brains are actually sent backwards and upside down.
Out of all the muscles in your body, The muscles that control your eyes are the most active.
The Mayans believed that Cross-Eyes were attractive, and would make efforts to ensure their children became cross-eyed.
About 2% of women have a rare Genetic Mutation that provides them with an extra retinal cone in their eyes. This allows them to see 100 Million colors!