Originally, all humans had brown eyes. Some 6,000 to 10,000 years ago, a genetic mutation affecting one gene turned off the ability to produce enough melanin to color eyes brown causing blue eyes. This mutation arose in the OCA2 gene, the main gene responsible for determining eye color.
Homo sapiens (modern humans) emerged around 200,000 years ago in Africa, but the mutation that causes blue eyes did not appear until sometime around 10,000 years ago.
A couple of years ago, scientist determined that BLUE EYES was a MUTATION that occurred around 6,000 years ago and it stems from A BLACK MALE AFRICAN ORIGIN. They report several archeological proofs puts this event around the BLACK SEA AREA.
At some point, you've probably wondered what the rarest eye color is. The answer is green, according to the American Academy of Ophthalmology (AAO). Only about 2 percent of the world's population sport this shade.
Proof of green eyes apparently has been found in Siberia during the Bronze Age, some 4,000 years ago. So my best conjecture for you is a heavy northern European influence, but you might want to have one of those ancestry DNA tests to make sure.
Essentially, green eyes are unique. Most common in Western, Northern, and Central Europe, green eyes often point to German or Celtic ancestry. Currently, they can be found most often in Iceland, the Netherlands, Scotland, Britain, and Scandinavia.
Yes, natural purple eyes are possible. There are many different shades of blues and greys out there and many in-between colors. Although very rare, some people's natural pigmentation can even be violet or purple in color.
Did Elizabeth Taylor have violet eyes? These days, thanks to colored contact lenses, anyone can have violet-colored eyes . Taylor didn't come by her purple peepers that way; the first tinted contact lenses weren't commercially available until 1983. Taylor's eye color was the real deal.
Hazel is the most attractive eye colour in females
Only green eyes seemed to suffer at all, with only 11% of matches reached. Blue and brown, the most popular for men, trended towards the bottom middle of the list, with brown eyes - the most common in the world - receiving only 13% of all matches.
What is the most attractive eye color? Despite songs about blue eyes and brown-eyed girls, neither were found to be the most attractive eye color. Instead, gray eyes topped the chart with an average rating of 7.4, followed by blue and green eyes each scoring an average of 7.3.
It is believed that the ancient human ancestors all had dark brown or nearly black colored eyes and very dark hair (which is also controlled by linked genes to eye color and skin color).
Some possible ways an African-American person might have ended up with blue eyes are: Caucasian relatives in their ancestry (the most likely reason) A rare disease that causes albinism only in the eyes (ocular albinism) A new mutation that makes their eyes blue.
It turns out most Vikings weren't as fair-haired and blue-eyed as legend and pop culture have led people to believe. According to a new study on the DNA of over 400 Viking remains, most Vikings had dark hair and dark eyes.
Well, no. We cleared up that rumor about redheads going extinct; the same goes for blue eyes. While the trait is becoming more rare, it's unlikely it will disappear all together. Which is crazy when you consider that 10,000 years ago blue eyes didn't even exist.
Scientists concluded that every blue-eyed person on the world today can trace their ancestry back to a single European who probably lived about 10,000 years ago in the Black Sea region and who first developed a specific mutation that accounts for the now widespread iris coloration.
Additionally, there is evidence that blue eyes evolved before light skin. Sturm and his team did a study looking at the genetic information extracted from a 7000-year-old tooth belonging to a hunter-gatherer dubbed La Brana 1, unearthed from the northwestern Spain.
A recent survey conducted by CyberPulse, a division of Impulse Research Corporation in Los Angeles uncovered this colorful research. Intelligence was the number one trait associated with brown, the most common eye color in the U.S., by 34 percent of respondents.
The Buton tribe is located exactly in the province of Southeastern Celebés (Sulawesi), and all its members have eyes of a deep blue, even more than any Nordic person. The contrast with their dark skin makes them stand out even more. One can see that their eyes are of a spectacular clear blue.
Those with darker colored eyes experience less visual discomfort in bright, sunny conditions. Also, darker irises reflect less light within the eye, reducing susceptibility to glare and improving contrast discernment—so people with darker eyes may have better vision in high-glare situations, such as driving at night.
Green is considered by some to be the actual rarest eye color in the world, though others would say it's been dethroned by red, violet, and grey eyes. Green eyes don't possess a lot of melanin, which creates a Rayleigh scattering effect: Light gets reflected and scattered by the eyes instead of absorbed by pigment.
During the beginning of her acting career, Mila Kunis had one hazel eye while the other had a blue tint. What many people don't know is that Mila Kunis's heterochromia was a result of an eye infection called chronic iritis. This is where the iris becomes inflamed due to infection or an underlying systemic problem.
The myth stops here
And while we have the least amount when we enter the world for the first time, remember that babies may be born with eyes of blue, brown, hazel, green, or some other color. It's simply a myth that all of us — or most of us, for that matter — are blue-eyed at birth.
While some people may appear to have irises that are black, they don't technically exist. People with black-colored eyes instead have very dark brown eyes that are almost indistinguishable from the pupil. In fact, brown eyes are even the most common eye color in newborn babies.
This rare condition only affects about 3% to 7% of people. If you're born with it, your liver doesn't make enough of an enzyme it needs to process bilirubin. The result is higher levels of bilirubin in your blood and yellow eyes.
The pupil can change size with certain emotions, thus changing the iris color dispersion and the eye color. You've probably heard people say your eyes change color when you're angry, and that probably is true. Your eyes can also change color with age. They usually darken somewhat.