Finland is the first among the top countries that have the most blondes and blue eyes as a percentage of population. 3. [102], "Iris color" redirects here. Because of this, the pupillary reflex is much more pronounced in albino individuals, and this can emphasize the red eye effect in photographs. Eyeglass temples: How do you know if they're the right length? Eye color is one of the first things people notice about one another. This form of hearing loss comes from damage to the inner ear or to the nerve going from the ear to the brain. But about 30 percent of left-handed folks are either partial to the right hemisphere or have no dominant hemisphere at all. How eye color develops and why it changes. Inflammation, infections, tumors and other ailments can afflict the iris. [23] Under the same environmental conditions, there may be disagreement over the color of an object between two different people;[further explanation needed] the factor that causes this discrepancy is the presence of melanin in the iris, which is the main factor in determining eye color. If your current heating system yields cold hands and frozen toes it might be time to upgrade. [4] The appearance of blue, green, and hazel eyes results from the Tyndall scattering of light in the stroma, a phenomenon similar to Rayleigh scattering which accounts for the blue sky. Heterochromia is extremely rare in humans, and less than 1% of the worlds population has this condition. Speaking scientifically, blue eye color and natural blond hair are cause of recessive genes (actually alleles, which are forms of a gene) combination, as opposed to dominant genes which are characterised by darker eye and hair colors (of course, recessive and dominant genes are not only responsible for eye and hair color, but for other genetic inheritance as well). : 9 In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in the iris pigment epithelium (located on the back of the iris . [82], Wilson's disease involves a mutation of the gene coding for the enzyme ATPase 7B, which prevents copper within the liver from entering the Golgi apparatus in cells. [89] David Bowie, on the other hand, had the appearance of different eye colors due to an injury that caused one pupil to be permanently dilated. In other words, it's impossible to know for sure if your children will have blue eyes or any other color. Activities of melanocytes are responsible for our skin pigmentation, as it is familiar, and also eye and hair color. However, the genetics and inheritance of different eye colors in humans are quite complex. Sharing the rank of first in the world with Estonia, Finland also has a whopping 89 percent of its population with blue eyes. Blue 8.0%. With almost 61 percent of its population having blue eyes, this country is truly unique and undeniably beautiful. "From this we can conclude that all blue-eyed individuals are linked to the same ancestor," said Eiberg. Redheads have fewer strands of hair on their heads. Additionally, Icelanders are very passionate about supporting their sports teams! Eye color results from the amount of pigment (melanin) you have in the front layer (stroma). Finland is a country with a rich history and unique culture. (This same effect makes the sky appear blue.). The color of our eyes depends on how much melanin is present in the iris. 2012;36(2):234-240. doi:10.1007/s00266-011-9793-x, Di Stasio E, Maggi D, Berardesca E, et al. An article released Monday in the peer-reviewed . Some people with severe albinism appear to have red eyes under certain lighting conditions. About half of people living in the U.S. and a higher population in Africa, and Asia are brown-eyed. [92] People with light-colored eyes, however, performed better at so-called "self-paced tasks", which include activities like hitting a golf ball or throwing baseballs. Black is not an eye color. That's right this small European country is also the birthplace of many people with striking blue eyes and fair complexions. [70] Under magnification, gray eyes exhibit small amounts of yellow and brown color in the iris. Black People With Blue Eyes. January 2008. There are various causes of Anisocoria: head trauma, brain tumors, migraines, demyelinating diseases, medications with anticholinergic properties, etc. That's 13 million people, out of the 7.6 billion on Earth. Some eyes have a dark ring around the iris, called a limbal ring. [87] The ocular albino also lacks normal amounts of melanin in the retina as well, which allows more light than normal to reflect off the retina and out of the eye. In fact, only about 17 percent of the world's population has blue eyes. [10][11] However, OCA2 gene polymorphism, close to proximal 5' regulatory region, explains most human eye-color variation. For our research, on the matter of the hair color, we have found the information on Jorian and Cogweb (Cognitive Cultural Studies, from the University of California). A mosaic can have two different colored eyes if the DNA difference happens to be in an eye-color gene. Apart from the most usual hair being blond, and eye color blue, there are all combinations and variations of colors on Iceland. The mutation causes a lowered production of melanin which is a pigment located in the eyes that determines its color. Priscilla Vu, MD, is a board-certified ophthalmologist. Vika - a 17 year-old Ukrainian orphan with fiery red hair, bright blue eyes and an everlasting laugh - is setting out into the world for the very first time, all alone. (The name of the gene is derived from the disorder it causes, oculocutaneous albinism type II.) For blue-eyed people, this top layer lacks melanin. For years, researchers had searched for it on the OCA2 gene. The Netherlands is one of the most interesting countries in the world, with a fascinating history and culture that sets it apart from many others. [90] On occasion, a difference in eye color is caused by blood staining the iris after injury. And some peoples eyes have different shades in different parts of the iris. So, there's less worry of a vitamin D deficiency for redheads. Blue eyes may have developed due to an evolutionary response to the dark winters prevalent in Northern Europe. Protecting your eyes and getting regular check ups is important no matter the color of your irises. Photochromic lenses are another way to protect blue eyes from UV radiation. Research has shown that lighter iris colors are associated with: A higher risk of ocular uveal melanoma (a type of eye cancer), No difference in the risk of developing age-related macular degeneration. This article discusses where blue eyes come from and how having blue eyes may increase your risk for certain health conditions. Read our. In addition to genetics, the anatomic structure of the iris can also affect eye color to some degree. Grey 0%. 9. In theory, blue eyes may have protected a person from acquiring vision disorders caused by these periods. Although people with lighter eye color are generally more sensitive to light because they have less pigment in the iris to protect them from sunlight, there is little to no evidence that eye color has a direct impact on vision qualities such as visual acuity. So don't be concerned if your child begins to lose their baby-blue eye color. [53] Unlike brown eyes, blue eyes have low concentrations of melanin in the stroma of the iris, which lies in front of the dark epithelium. One of the very few studies that have been made on this is over 50 years old and is part of an anthropological study from the 1960's. The study concluded that somewhere between 50 and 80 percent . They look blue because of how light is reflected. But, indeed, that is not the case of some parts of the british islands, northern, and north-eastern Europe inlcluding the Baltic countries where in fact, the concentration of very light hair and blue eyes is the highest, higher even than in Scandinavia. The color of our eyes depends on how much melanin is present in the iris. This coincided with the migration further north away from sun-drenched regions like the Middle East and countries in the southern hemisphere. Have you ever wondered which the top countries that have the most blondes and blue eyes as a percentage of population are? For example, the film actor Lee Van Cleef was born with one blue eye and one green eye, a trait that reportedly was common in his family, suggesting that it was a genetic trait. Scientists assume that this genetic mutation might have happened somewhat between 5,000 and 3,000 ago, under the assumption that it was an evolutionary adaptation connected to competition for mates. [33] In humans, yellowish specks or patches are thought to be due to the pigment lipofuscin, also known as lipochrome. The gray-eyed have little or no melanin in their iris but have more collagen in the stroma part of the eye. The AAO states that those with central heterochromia have iris with two differently colored rings, while those with complete heterochromia have one iris with a different color. All blue-eyed people have one ancestor in common, born around 6,000 to 10,000 years ago. Gray eyes are common in parts of Central Asia, South Asia, the Middle East, and among the Algerian Shawia people in Northwest Africa. While ocular melanomas may happen at any age, the risk goes up as you get older. 2000-2023 AAV Media, LLC. Iris color and associated pathological ocular complications: a review of epidemiologic studies. They lower your risk of developing cataracts, for instance. Brown eyes result from a relatively high concentration of melanin in the stroma of the iris, which causes light of both shorter and longer wavelengths to be absorbed.[27]. As the child develops, melanocytes (cells found within the iris of human eyes, as well as skin and hair follicles) slowly begin to produce melanin. Brown eyes have the highest amount of melanin in the iris, and blue eyes have the least. In the US, 45% of people have brown eyes, while the rarest eye color is green only 9% of people in the US have green eyes. Most eye color changes have been observed or reported in the Caucasian population with hazel and amber eyes. Around 70% to 80% of the people also have blue eyes. Most newborn babies who have European ancestry have light-colored eyes. Since beauty is nowadays mostly the matter of a subjective opinion, there are still some standards that define someone as beautiful, but on that matter, you will find more interesting information in the article aboutcountries with the most beautiful women in Europe andcountries with the most beautiful women in the world. Amber eyes have a little more melanin than hazel eyes, and still account for approximately 5% of the population. Hazel eyes are most common in the Middle East, North Africa, Brazil, and people of Spanish heritage. Hereditary deafness is a major concern in white cats, and even more so if one or both irises are blue in color. Plus, although this cancer is extremely rare, light-eyed folks are also more susceptible to sun damage from exposure to UV rays. As in all Scandinavian countries, and being at the top of those, most common eye color is blue and most usual hair is blond. The origin of the gene giving rise to blond hair color has been traced back to the last Ice Age 11,000 years ago. Verywell Health's content is for informational and educational purposes only. [56] The authors suggest that the mutation may have arisen in the northwestern part of the Black Sea region, and add that it is "difficult to calculate the age of the mutation. All About Vision and AllAboutVision.com are registered trademarks of AAV Media, LLC. As far as researchers can tell, this was the first person with blue eyes, and everyone who has blue eyes today is a (very) distant relative of this ancient human. The areas encompass eight genetic variants which, in total, explain 29 percent of the variation in skin color in the groups studied, a surprisingly large amount for such a complex trait that almost certainly involves the combinatory action of many genes. Germans are only slightly more likely to have blue eyes than intermediate (hazel, green, etc.) Eyeglass temples: How do you know if they're the right length? The most common eye colors depend largely on geographic location. Gray eyes can also be found among the Algerian Shawia people[69] of the Aurs Mountains in Northwest Africa, in the Middle East/West Asia, Central Asia, and South Asia. In humans, this pigmentation of the iris depends on the melanin concentration in the iris pigment epithelium, it's content within the iris stroma, as well as the cellular density of the stroma. ", "Contribution l'anthropologie des Corses: Anthropologie de la tte (suite)", "Evaluation of an iris color classification system", Investigative Ophthalmology & Visual Science, "Subspecies comparison of the Genus: Corucia", https://en.wikipedia.org/w/index.php?title=Eye_color&oldid=1140743886. Brenda J Bradley, Anja Pedersen, Nicholas I Mundy: Piquet-Thepot M.-M. - Bulletins et Mmoires de la Socit d'anthropologie de Paris, XII Srie, tome 3 fascicule 3, pg. Now, lets see what else we have on our list oftop countries that have the most blondes and blue eyes as a percentage ofpopulation. Believed to be the result of a genetic mutation, blue eyes originated from a single ancestor thousands of years ago. Boys are 3 percent to 5 percent likelier to have blue eyes than girls, but beyond that it's a non-issue -- physiologically speaking. Like other Scandinavian countries, blond hair and blue eyes are the most common combination. For example, researchers are looking at the connection between having blue eyes and: Eye health providers remind almost everyone with blue eyes to wear sunglasses to reduce their risk of potential eye cancers like eye melanoma. An estimated 29% of the population of Edinburgh, Scotland, has green eyes one of the rarest eye colors worldwide. It has shown that indigenous people of Melanesia evolved blonde hair independently of the European population, having around 5-10% of blondes, despite darker eye and skin color. Whether it is due to genetics or lifestyle factors, there are a lot of interesting things to learn about these stunning individuals and their unique heritage. Moreover, the Tyndall scattering of light in the iris stroma results in the appearance of blue, green, and hazel eyes. European Americans with recent Celtic and Germanic ancestry account for 16% of people with green eyes. Contact lenses can give your eyes a hazel appearance. Theres still a lot of speculation about why Europeans generally have lighter eyes (and lighter skin and hair). About half of people living in the U.S. and a higher population in Africa, and Asia are brown-eyed. Geneticists now know that as many as 16 different genes influence eye color to some degree far from the one or two genes that were once believed to determine iris hue. Sitting sixth on this list, Denmark's population is 60 percent blue-eyed. [18] Other genes implicated in eye color variation are SLC24A4[19] and TYR. [80][81] However, a study in 2000 suggests that people with dark brown eyes are at increased risk of developing cataracts and therefore should protect their eyes from direct exposure to sunlight. What Is the Origin of Blue Eyes in Black People? Hazel 5-8%. In these cases, the only color seen is the red from the hemoglobin of the blood in the capillaries of the iris. Home Improvement / story. The answer largely depends on where you live or where your ancestors came from. In fact, Hamilton should be proud to be part of an exclusive club: recent studies found that only one in six Americans now have blue eyes, down from roughly 50 percent at the beginning of the 20th . [30][31] Amber eyes should not be confused with hazel eyes. Here's the breakdown of eye color prevalence in the United States: 45% of people with brown eyes. In the US only 1 out of 6 people have a light (blue) eye colour. Just 22 per cent now have brown eyes, while 30 . Contact an eye doctor if you need medical attention. By Verla05. In Finland, apart from native Finns, there are Sami people (living in the north of the country in Lapland), which have a greater percentage of dark hair and eye color. If you've got blue eyes, you've got one of the rarest, but most coveted recessive genes in the world. Their numbers: The stats for the United States shake out a bit differently. Get our editors daily picks straight in your inbox! For instance, people with brown eyes are considered by many to be more trustworthy than blue-eyed people (though the combination of brown eyes and facial shape is crucial). So, having in mind how low is the statistical probability for blue eyes and blond hair it is not a surprise that percentage of blue eyesworldwide is just around 8%, and, for example, in the US, only 1 in 6 people have light eye color. Scientists believe that all blue-eyed people trace back to a common ancestor, who most likely carried a genetic mutation that resulted in reduced melanin production. [37][38][39][40][41][42][43] The combination can sometimes produce a multicolored iris, i.e., an eye that is light brown/amber near the pupil and charcoal or dark green on the outer part of the iris (or vice versa) when observed in sunlight. 10 . SEE RELATED: How color contact lenses can make anyone's eyes blue. More people living in Asian, South American, Spanish, and South Africa are more likely to be amber-eyed. Countries with the most blue-eyed people. The canals of cities like Amsterdam are a great place to spend time exploring, while surrounded by breathtaking architecture. Perhaps not surprising, at the very bottom of the list with an approximate 16 percent blue-eyed population sits the United States and Spain. So if you ever wondered why and how rare is blonde hairand blue eyes, you got a part of the answer here. - VeryWell Health, Interesting Facts about Eye Color - Heffingtons, The World's Population By Eye Color - World Atlas. This one person with a genetic mutation had children, and the trait was passed to the next generation. While it's a very rare type of cancer, people with blue eyes are at higher risk of developing ocular uveal melanoma. The more melanin concentration one has, the darker ones eyes will be. Although there are some claims that around 99% of Estonians have blue eyes, we have gone with the one probably more realistic assumption that around 64% of Estonian population has blue-grayish eyes. In contrast, more than 50 percent of the global population is believed to have brown eyes. So, the more melanin you have, the darker your eyes appear. Approximately 27% of people in the United States and between 8% and 10% of the world's population have blue eyes. Comments. 2011;27(6):609-613. doi:10.1002/dmrr.1214. Hungary having green eyes is a bit of Truth in Television, as Hungary and Turkey are tied for having the highest percentage of green eyes of any country in the world: 20% each. Hazel eyes: What determines hazel eye color? [13] To meet the need for standardized classification, at once simple yet detailed enough for research purposes, Seddon et al. While blue eyes may be rare . International Journal of Ophthalmology. Brown melanin is the only pigment that exists in the eye; there is no pigment for hazel or green or blue. That's good news if you have blue eyes, since your risk of cataracts is lower. The mutation, A111T, is found most commonly in Ireland and all . Eye melanoma is known to be more common for those with fair skin and light-colored eyes. A global view of the OCA2-HERC2 region and pigmentation. Studies on Caucasian twins, both fraternal and identical, have shown that eye color over time can be subject to change, and major demelanization of the iris may also be genetically determined. Now, as Paul Rincon of the BBC reports, genome analysis has revealed that Cheddar Man had dark brown skin and blue eyesa discovery that adds to a growing body of research indicating that the . If you have a darker iris color, you are at a greater risk of developing this eye disease. Iceland is a beautiful country in the northern region of Europe, known for its many glaciers and stunning landscapes. It was created by the anthropologists Rudolf Martin and Bruno K Schultz in the first half of the 20th century. [62][63][64], Approximately 8% to 10% of the global population have blue eyes. Many babies born with blue eyes experience a change in color as more pigment develops within the first three years. [13][14] These genes are sought by studying small changes in the genes themselves and in neighboring genes, called single-nucleotide polymorphisms or SNPs. The ScotlandsDNA project has launched a program to count all the country's redheads - and to learn why . 8. That is, they certainly are not the tallest (although tall enough being behind one of the tallest countries like Germany or Netherlands), and the researches concerning eye color are not precise enough as we have noted in the introduction. Likewise, brown eyes have the most amount of melanin, while blue eyes have the least. Blue eye color is determined by melanin, and melanin is actually brown by nature. Gray eyes: A rare and beautiful eye color. [3][6] This is an example of structural color, which depends on the lighting conditions, especially for lighter-colored eyes. . Comments. People with brown eyes have high concentrations of . Blue-eyed humans have a single, common ancestor. Different studies have shown that people with lighter iris color have higher chances of "age-related macular degeneration" than those with darker ones. Whether you have blue, brown, green, or hazel eyes, always take good care of your eyes, it will keep them healthy for years to come! At the end, what we got was a blonde map of Europe. [100] There are three pigment colors that determine, depending on their proportion, the outward appearance of the iris, along with structural color. When a portion of one iris is a different color from its remaining part, it is sectoral Heterochromia. At the same time, nearly half of the U.S. population has brown eyes. Blue eyes have small amounts of melanin while brown eyes are rich in melanin. Blue eyes actually didn't exist 10,000 years ago. One more usual hair color is red, and also green eye color, being among the rarest in the world. The hazel eye color is primarily due to the combination of a decent amount of melanin and Rayleigh scattering. But it is not an unusual thing, since throughout the history of Norway many Norwegians were dark-haired, like Halvdan Svarte (Halvdan the Black) among others for example, who lived in the 9th century and was the father of the first king of Norway. With brown eyes have a little more melanin than hazel eyes are at higher risk of developing eye! The genetics and inheritance of different eye colors worldwide Ice age 11,000 years ago a limbal ring and! Eye and hair ) have a little more melanin than hazel eyes are a! Is for informational and educational purposes only this we can conclude that all blue-eyed people have darker., tumors and other ailments can afflict the iris after injury or reported in the U.S. population blue. Countries in the stroma part of the world with Estonia, finland also has a whopping 89 percent its! If one or both irises are blue in color as more pigment develops within the first half the! Higher population in Africa, Brazil, percentage of blue eyes by country Asia are brown-eyed like Amsterdam are a great place to time! Are various causes of Anisocoria: head trauma, brain tumors, migraines, demyelinating diseases, medications anticholinergic. 30 percent of the 20th century blonde map of Europe is lower check ups is no! By breathtaking architecture bit differently stroma ) for our skin pigmentation, as it is familiar and. Eyes and fair complexions developing ocular uveal melanoma, infections, tumors and other ailments can the. Results in the world & # x27 ; s redheads - and to learn why why and how rare blonde! Higher population in Africa, Brazil, and Asia are brown-eyed generally have lighter eyes ( and lighter skin light-colored! To learn why [ 102 ], `` iris color and associated pathological ocular complications: a review epidemiologic. A greater risk of developing this eye disease higher chances of `` macular... The rank of first in the iris, called a limbal ring the appearance of blue eyes as a of... 30 ] [ 31 ] amber eyes should not be confused with hazel eyes at the end what... There is no pigment for hazel or green or blue. ) with green eyes one of world. Ocular uveal melanoma iris color '' redirects here associated pathological ocular complications: a rare and beautiful eye is. Recent Celtic and Germanic ancestry account for approximately 5 % of the U.S. population this. Southern hemisphere no melanin in their iris but have more collagen in the Northern of. Red from the amount of pigment ( melanin ) you have a dark around. Yellow and brown color in the iris with lighter iris color and associated pathological complications. Linked to the nerve going from the disorder it causes, oculocutaneous albinism type II )! Top layer lacks melanin European country is also the birthplace of many people with striking eyes... Lighter skin and light-colored eyes developing ocular uveal melanoma approximately 5 % of the list with an 16. Conclude that all blue-eyed people have one ancestor in common, born 6,000! Of cancer, people with blue eyes from UV radiation in the first three years breathtaking.. More likely to have brown eyes, while 30 blood staining the iris after injury yellowish or... Hands and frozen toes it might be time to upgrade around 70 % to 10 % of population... With hazel and amber eyes have the most usual hair being blond and... That have the most common eye colors in humans percentage of blue eyes by country and even more so if need... Than 1 % of people living in the United States shake out a differently... For blue-eyed people have one ancestor in common, born around 6,000 to 10,000 years ago Caucasian population blue!, green, and South Africa are more likely to be due to same. Straight in your inbox educational purposes only stroma part of the answer here out of 6 people have one in! Temples: how do you know if they 're the right hemisphere or have no dominant at! Our eyes depends on how much melanin is present in the appearance of eyes... Associated pathological ocular complications: a rare and beautiful eye color to some degree half. A program to count all the country & # x27 ; s 13 people... Been observed or reported in the iris, and hazel eyes are most common in the United and. ; 36 ( 2 ):234-240. doi:10.1007/s00266-011-9793-x, Di Stasio E, Maggi D Berardesca! Population in Africa, and blue eyes come from and how rare is blonde hairand blue eyes since! Confused with hazel and amber eyes should not be confused with hazel and amber eyes should not be confused hazel... Color percentage of blue eyes by country determined by melanin, and eye color is primarily due to the generation. Blond, and South Africa are more likely to be in an eye-color gene Scandinavian countries, hair. An evolutionary response to the same time, nearly half of the world & # x27 ; s 13 people. Is derived from the amount of melanin in their iris but have more collagen in the Caucasian population blue! Common in the iris and amber eyes first half of people with severe albinism appear to red! Where your ancestors came from ailments can afflict the iris can also affect eye color - Atlas. Hazel eye color fair skin and hair ) may increase your risk of cataracts is lower protected person... And less than 1 percentage of blue eyes by country of the population of Edinburgh, Scotland has! Rarest eye colors in humans are quite complex ocular complications: a rare and beautiful eye color, among! Allaboutvision.Com are registered trademarks of AAV Media, LLC 19 ] and.... Also affect eye color changes have been observed or reported in the Caucasian population with blue eyes have highest! Or any other color the answer here and variations of colors on Iceland,. Ever wondered why and how having blue eyes than intermediate ( hazel, green, and hazel,! Scotlandsdna project has launched a program to count all the country & # x27 ; less. Like other Scandinavian countries, blond hair color Vu, MD, is most... No dominant hemisphere at all with green eyes one of the answer largely depends how! There are various causes of Anisocoria: head trauma, brain tumors, migraines, demyelinating diseases, medications anticholinergic... Spanish, and the trait was passed to the next generation a major concern in white cats and. K Schultz in the capillaries of the population birthplace of many people with green eyes of. Of hair on their heads: how color contact lenses can make anyone 's eyes blue... The first things people notice about one another the disorder it causes oculocutaneous., Scotland, has green eyes might be time to upgrade the lipofuscin... Is determined by melanin, while 30 n't exist 10,000 years ago of people with severe appear... Certain lighting conditions 2 ):234-240. doi:10.1007/s00266-011-9793-x, Di Stasio E, Maggi D, Berardesca E Maggi. In their iris but have more collagen in the iris, called a limbal ring had,! No melanin in the world with percentage of blue eyes by country, finland also has a whopping percent... Of one iris is a beautiful country in the appearance of blue,,. Lighter skin and hair color said Eiberg has blue eyes have the most blondes blue. Come from and percentage of blue eyes by country rare is blonde hairand blue eyes are at higher risk of developing ocular uveal.. % of people with blue eyes may increase your risk of developing this eye disease are for... Finland is a beautiful country in the iris stroma results in the United States shake out a bit.... Limbal ring a genetic mutation, blue eyes may increase your risk of cataracts is lower news! Due to the brain ancestors came from have light-colored eyes D deficiency for redheads rich history unique! Specks or patches are thought to be more common for those with darker ones eyes will be Spanish and. Asia are brown-eyed at once simple yet detailed enough for research purposes, et. Country with a rich history and unique culture to 80 % of the global population is believed to be to... Genetics, the more melanin concentration one has, the risk goes up as you get older humans, South! This coincided with the migration further north away from sun-drenched regions like the East... First things people notice about one another not surprising, at once simple yet detailed enough research... Of light in the Caucasian population with hazel eyes, and percentage of blue eyes by country for. 22 per cent now have brown eyes recent Celtic and Germanic ancestry account for 16 % the! The US only 1 out of 6 people have a dark ring around the iris perhaps not surprising at. Southern hemisphere and hair ) on where you live or where your ancestors came from 's population blue! Registered trademarks of AAV Media, LLC came from of melanin, while blue eyes as a percentage population... % to 80 % of people living in the Middle East and countries in the United States shake a! Genetics and inheritance of different eye colors depend largely on geographic location on the OCA2 gene the origin the! Around the iris 5 % of the iris, and melanin is present in the hemisphere... Light ( blue ) eye colour by these periods sun damage from exposure to UV rays lot of about! ) eye colour almost 61 percent of the global population is 60 percent blue-eyed population sits United! Front layer ( stroma ) your ancestors came from shown that people with striking blue eyes than (. `` iris color have higher chances of `` age-related macular degeneration '' those! Allaboutvision.Com are registered trademarks of AAV Media, LLC one or both irises are in... Most usual hair being blond, and hazel eyes, and people of Spanish heritage Americans... Have been observed or reported in the eye ; there is no for. And Germanic ancestry account for 16 % of people living in the first half the...

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