Inflammation, infections, tumors and other ailments can afflict the iris. There are many other possible reasons for having two different-colored eyes. And in the end, we have gone through some maps provided by Unsafe Harbour made on basis of some scientific research on the matter of countries that have the most blondes and blue eyes as a percentage of population. Blue light is then reflected out, which makes the iris appear blue even though it's actually colorless. "Originally, we all had brown eyes," said Hans Eiberg, associate professor in the Department of Cellular and Molecular Medicine at the university. In 2016, scientists found that our pale skin complexion is inherited from just one man who lived thousands of years ago. Known for their beautiful fair hair and blue eyes, Denmark people stand out from other cultures. In the US only 1 out of 6 people have a light (blue) eye colour. Common knowledge said that you could predict a child's eye color if you knew the color of their parents' eyes, and possibly the color of their grandparents' eyes. Can you name the countries with the highest percentage of their populations having blue eyes and blond hair? By contrast, less than 1 in every 100 people in southern Europe . ", Blue eyes in lemurs and humans: same phenotype, different genetic mechanism, SKIN/HAIR/EYE PIGMENTATION, VARIATION IN, 1; SHEP1 - 227220, Howard Hughes Medical Institute: Ask A Scientist, "An Ocularist's Approach to Human Iris Synthesis", "Admixture in Latin America: Geographic Structure, Phenotypic Diversity and Self-Perception of Ancestry Based on 7,342 Individuals", "Iris melanocyte numbers in Asian, African American, and Caucasian irides", "Iris color and intraocular pressure: the Blue Mountains Eye Study", "Induction of tyrosinase gene transcription in human iris organ cultures exposed to latanoprost", "Race, iris color, and age-related macular degeneration", "Iris color as a prognostic factor in ocular melanoma", Blue Eyes Versus Brown Eyes: A Primer on Eye Color. In those with milder forms of albinism, the color of the iris is typically blue but can vary from blue to brown. [29] Brown eyes are common in Europe, East Asia, Southeast Asia, Central Asia, South Asia, West Asia, Oceania, Africa and the Americas. Now, lets get back to our main questions, which country has the most blue eyes and which country has the most blondes. Gray is the second-rarest natural eye color after green, with 3% of the world's population having it. Dissection reveals that the iris pigment epithelium is brownish black due to the presence of melanin. Get our editors daily picks straight in your inbox! Globally, brown is the most common eye color. Some eyes have a dark ring around the iris, called a limbal ring. All blue-eyed people have one ancestor in common, born around 6,000 to 10,000 years ago. Anisocoria thus refers to an abnormal condition characterized by different pupil sizes. Almost all humans have some brown in their eyes. [70] Under magnification, gray eyes exhibit small amounts of yellow and brown color in the iris. 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. Blue eyes have small amounts of melanin while brown eyes are rich in melanin. Blue eyes are caused by a gene mutation. Blue eyes percentage: 50-80. . This results in the absorption of the longer wavelengths of light by the dark underlying epithelium and the reflection of shorter wavelengths. Most eye color changes have been observed or reported in the Caucasian population with hazel and amber eyes. Approximately 27% of people in the United States and between 8% and 10% of the world's population have blue eyes. Nevertheless, both figures leave Estonia among the top countries that have the most blondes and blue eyes as a percentage of population. Common Eye Disorders. Eyeglass temples: How do you know if they're the right length? If you have dark brown hair and brown eyes, you have something in common with most people around the globe. Netherlands stands for the tallest country in the world and is also the top countries that have the most blondes and blue eyes as a percentage of population. Rather than including a blue pigment, they actually just lack the pigment that makes eyes brown. It is darkest when we are at our healthiest and naturally fades . Longer wavelengths of light tend to be absorbed by the dark underlying epithelium, while shorter wavelengths are reflected and undergo Rayleigh scattering in the turbid medium of the stroma. But a survey of more than 25,000 people from 12 countries has . Studies conducted in 2019 found some interesting statistics on blue-eyed populations around the globe. Image credit: Aleksandar Mijatovic via Shutterstock. Eiberg studied the DNA of 800 men and women with blue eyes from varying countries ranging from "fair-skinned, blond-haired Scandinavians to dark-skinned, blue-eyed people living in Turkey and . It is important to always wear sunglasses and eyeglasses whenever possible - especially when spending time outdoors or staring at screens for long periods of time. 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). Blue eyes are also found in southern Europe, Central Asia, South Asia, North Africa and West Asia. They studied the genes that coded blue eyes in all of these individuals. She has spent the last 10 years working for an internationally recognized medical facility where she found her passion for making complicated topics easier to understand. Black is not an eye color. Instead, they have less melanin, absorb less light, scatter more light and reflect it along the spectrum of light color. SEE RELATED: Is blue the rarest eye color? The amount of damage depends on wavelength and exposure time . Blue eyes are an inherited trait. Hazel eyes: What determines hazel eye color? If a recessive and dominant allele pair up, dominant one will always dominate, as the name says. Scientists are looking into the possibility of those who have blue eyes being at higher risk for sensorineural hearing loss. While that much seems obvious, research into our genes still hasn't proved conclusively whats going on. 9. Some people with severe albinism appear to have red eyes under certain lighting conditions. A lower level of melanin allows more light to reflect off the eye; the blue color is the resulting shade. Which country has the most people with blue eyes? In addition, flash photography can sometimes cause a "red-eye effect", in which the very bright light from a flash reflects off the retina, which is abundantly vascular, causing the pupil to appear red in the photograph. The mutation causes a lowered production of melanin which is a pigment located in the eyes that determines its color. Germans are only slightly more likely to have blue eyes than intermediate (hazel, green, etc.) About half as many Americans have blue eyes as brown eyes. Symptoms of uveitis include burning and redness of the eyes, blurred vision, headaches, etc. Brown-eyed individuals, on the other hand, have a lot more variation. A team of scientists has tracked down a genetic mutation that leads to blue eyes. Eyeglass temples: How do you know if they're the right length? But all in all, there hasnt been any comparative research done, or even within the individual countries of the real state of blue-eyed blond populations. Since I think weve had enough of scientific introduction to this subject, lets now get to meet the top countries that have the most blondes and blue eyes as a percentage ofpopulation. In European countries, blue eyes and other lighter eye colors tend to prevail, though youll still commonly find brown eyes everywhere. A small numer of people have eyes of an even rarer color, such as violet or red, or display heterochromia, a condition in which a person's eyes are two different colors. Moreover, a gray iris may indicate uveitis, while those with blue, green, or gray eyes are at an increased risk of uveal melanoma. Scientists believe that all blue-eyed people can be traced back to a common ancestor, who probably had a genetic mutation that reduced their melanin in the iris. This means everyone with blue eyes has one thing in commonthey're all related. An iris that appears golden contains some melanin even at this early age and is likely to turn from blue to green or brown as the infant ages. Nothing to do with their mythical fiery temperament! [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. Since we are slowly coming to the epicenter top countries that have the most blondes and blue eyes as a percentage ofpopulation, Denmark is the first country of Vikings that we come by. 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. 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. France, the southernmost nation on the list, has the largest number of people with "intermediate" (neither brown nor blue) eye color. [8], The genetics and inheritance of eye color in humans is complicated. Such albinos have pink eyes, as do albino rabbits, mice, or any other animal with a total lack of melanin. or brown eyes. Blue eyes may have developed due to an evolutionary response to the dark winters prevalent in Northern Europe. However, a blue-eyed child is almost certain if both parents have blue eyes. 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. [37][39][42][44], Around 18% of the US population and 5% of the world population have hazel eyes. About 5% of the worlds population and 18% of Americans have hazel eyes -- a mixture of green, gold, and orange. Symptoms include dry, irritated eyes and blurred vision. Blond hair percentage: 75. The second most common eye color worldwide is blue, with several estimates revealing that about 8 to 10% of the worlds population share this trait. The gray-eyed have little or no melanin in their iris but have more collagen in the stroma part of the eye. 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. 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. The stunning combination of blue eyes and sandy brown or blonde hair is much sought after in other countries, but very much the norm here. Amber is the third-rarest natural eye color after green and gray, in 5% of the world's population. Well, that makes at least one of the most common stereotypical statements about the Dutch true. At first, you may not notice that you have a cataract. Iceland, the northernmost country of the bunch, has the greatest percentage of people with blue eyes. 15 Best Places to Travel in November in Europe, Asia and Tropical Destinations 15 Most Expensive Items You Can Buy on Amazon. Taro Aso, Japan's foreign minister, risked upsetting his country's strongest ally by suggesting US diplomats in the Middle East would never solve the region's problems because they have 'blue eyes . France, the southernmost nation on the list, has the largest number of people with intermediate (neither brown nor blue) eye color. Researchers at the American Academy of Opthalmology have stated that everyone on planet earth had brown eyes around 10,000 years ago. The second most common eye color worldwide is blue, with several estimates revealing that about 8 to 10% of the world's population share this trait. Now, geneticists suggest everybody with non-brown eyes can trace their eye color back to that one person. In theory, blue eyes may have protected a person from acquiring vision disorders caused by these periods. Quizzes; Events; Quiz Creation; Community; Videos; Private Events . 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. Your pupil is the small black opening in the center. Research has found that eye color may play a role in various areas of health and well-being. Blue eyes and blond hair (as well as all others for that matter) are the results of genetic variations. By Verla05. If you have a darker iris color, you are at a greater risk of developing this eye disease. Even Sweden, the world's blondest country, has had a drop in the proportion of blondes to brunettes of nearly 20 per cent since 1948. . One thing that truly sets people apart is their eye color. Blue is the second most common eye color globally, with estimates suggesting that 8-10% of people have blue eyes. [73], Although the deep blue eyes of some people such as Elizabeth Taylor can appear purple or violet at certain times, "true" violet-colored eyes occur only due to albinism. In Britain, for example, a 2014 study found that green was more prevalent than brown 30 percent to 22 percent although most were blue, 48 percent. [22] Observing the iris of an infant from the side using only transmitted light with no reflection from the back of the iris, it is possible to detect the presence or absence of low levels of melanin. If you have blue eyes, it means the iris part of your eyes lacks melanin, so, technically, blue eyes don't have any color. Follow. While researchers can't yet prove eye color indicates a hearing problem, they did find that those with lighter-colored eyes had more significant hearing loss after being exposed to loud noises. Red hair is . An estimated 89 percent of Estonians have blue eyes. [34] Many animals such as canines, domestic cats, owls, eagles, pigeons and fish have amber eyes, whereas in humans this color occurs less frequently. Known for their beautiful, pale blue eyes and milky-white skin, Swedes stand out wherever they go. This page was last edited on 21 February 2023, at 15:18. Some speculate that this change in environment was a contributing factor. This is due to meager amounts of melanin in the iris, which allows the underlying blood vessels to show through. [93] There are also other studies that challenge these findings. The majority of the worlds population has brown eyes, about 70-80%. Blond (male) or blonde (female), also referred to as fair hair, is a human hair color characterized by low levels of the dark pigment eumelanin.The resultant visible hue depends on various factors, but always has some yellowish color. Blue 8.0%. 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. Keep that 70-79% global estimate for brown eyes in mind when you look at the numbers below from a study in the journal Forensic Science International: Genetics.. If you have ever been curious about the exact percentage of people with blue eyes in different parts of the world, look no further. Blue eyes as a risk factor for type 1 diabetes, Eye color as a risk factor for acquired sensorineural hearing loss: A review, A global view of the OCA2-HERC2 region and pigmentation. [100] There are three pigment colors that determine, depending on their proportion, the outward appearance of the iris, along with structural color. Unsurprisingly, another Scandinavian country has placed itself third on our list of countries with the highest percentage of blond hair citizens. So, there's less worry of a vitamin D deficiency for redheads. They lower your risk of developing cataracts, for instance. Between 6,000 and 10,000 years ago, a baby was born in Europe with a harmless genetic mutation. That's 13 million people, out of the 7.6 billion on Earth. [77], The most important role of melanin in the iris is to protect the eyes from the sun's harmful rays. So if you ever wondered why and how rare is blonde hairand blue eyes, you got a part of the answer here. Home Improvement / story. In fact, more than half of all Americans age 80 or older either have cataracts or have had surgery to get rid of cataracts. Black People With Blue Eyes. Eye color not only affects ones personality but also reflects ones ancestry, the melanin concentration in irises, and even ones current health condition. A study in Rotterdam (2009) found that it was possible to predict eye color with more than 90% accuracy for brown and blue using just six SNPs. [citation needed], Those with lighter iris color have been found to have a higher prevalence of age-related macular degeneration (ARMD) than those with darker iris color;[41] lighter eye color is also associated with an increased risk of ARMD progression. Redheads have fewer strands of hair on their heads. Brown irises contain more or less melanin. The brightly colored eyes of many bird species result from the presence of other pigments, such as pteridines, purines, and carotenoids. At the same time, nearly half of the U.S. population has brown eyes. Free shipping on all US orders! Iceland, the northernmost country of the bunch, has the greatest percentage of people with blue eyes. Heterochromia is extremely rare in humans, and less than 1% of the worlds population has this condition. [78] People with lighter eye colors, such as blue or green, have lessened protection from the sun, and so need greater protection from the sun's rays than those with darker eye colors. The incidence of blue eyes continues to decline among American children. "Why Edinburgh residents are likely to be blue-eyed", "Genetic determinants of hair, eye and skin pigmentation in Europeans", "Eye Color Percentage for Across the Globe", "Is there any difference in the photobiological properties of melanins isolated from human blue and brown eyes? Yellowing of the sclera (the "whites of the eyes") is associated with jaundice,[84] and may be symptomatic of liver diseases such as cirrhosis or hepatitis. It often develops as you age and is the leading cause of vision loss for people over 55. For the shade of purple, see, "Brown eyes" redirects here. One mutation 10,000 years ago has today resulted in almost 200 million pairs of blue eyes, and people with blue eyes have more blue-eyed children. [5] Neither blue nor green pigments are present in the human iris or vitreous humour. or brown eyes. And around 10%, 5%, and 2% . Gray eyes are common in parts of Central Asia, South Asia, the Middle East, and among the Algerian Shawia people in Northwest Africa. The different types of uveitis are: Anterior uveitis, Intermediate uveitis, Posterior uveitis, and Pan-uveitis. Summary. Centers for Disease Control and Prevention. "But a genetic mutation affecting the OCA2 gene in our chromosomes resulted in the creation of a 'switch,' which literally turned off the ability to produce brown eyes.". The iris is the colored part of the eye. The world is a beautiful, diverse place, full of unique cultures and individuals. [45], Green eyes probably result from the interaction of multiple variants within the OCA2 and other genes. As of 2010[update], as many as 16 genes have been associated with eye color inheritance. [15][16], People of European descent show the greatest variety in eye color of any population worldwide. With a 75.5 percent blue-eyed population, Iceland boasts the fourth spot on this list. 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. The green color is from a combination of a blue hue from Rayleigh scattering and "yellow" from the yellow pigment called lipochrome. Sitting sixth on this list, Denmark's population is 60 percent blue-eyed. A chimera can have two different colored eyes just like any two siblings canbecause each cell has different eye color genes. In other words, it's impossible to know for sure if your children will have blue eyes or any other color. Custers' research suggests that Black people with blue eyes are affected by the same OCA2 genetic mutation in the same way any other human is, despite the mutation . Globally, only about eight to 10 percent of people have this eye color with Europe containing the large majority. The extensive study on the genetic mutation was carried out by researchers at three Japanese universities; the research concluded that the genetic mutation occurred around 9,000 BC, as a result of various environmental and evolutionary factors. All eyes in the country were once brown, but a study revealed they are now 48 per cent blue, 30 per cent green and 22 per cent brown. Eye colors are a beautiful and distinctive aspect reflecting ones personality and ancestry. Iris color and associated pathological ocular complications: a review of epidemiologic studies. For example, Asians typically have brown eyes, while Europeans are more likely to have eyes of blue or other lighter hues. 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! Green irises, for example, have some yellow and the blue structural color. As being one of the Baltic peoples, Latvians expectedly have very high percentage of the blue-eyed and blond population. While the rest of us see beauty and wonder in eye color, eye doctors see the source of eye color the iris as a signpost for vision problems. In Norway, an estimated 75% of the population . Activities of melanocytes are responsible for our skin pigmentation, as it is familiar, and also eye and hair color. Only about 8 % to 10% of the world's population has blue eyes. For the blue eye color, we have gathered general information from Quora, and have also searched for additional information on countries individually. Priscilla Vu, MD, is a board-certified ophthalmologist. Recent advances in ancient DNA technology have revealed some of the history of eye color in Europe. The melanin in brown eyes helps protect against intense sunlight exposure, so it would not be necessary for areas where there is not much light year-round. People with blue eyes need to be careful about exposure to bright sunlight. [27] Green eyes contain the yellowish pigment lipochrome.[52]. Icelandic people demonstrate a strong national pride in preserving their culture. Eye color results from the amount of pigment (melanin) you have in the front layer (stroma). [84], Aniridia is a congenital condition characterized by an extremely underdeveloped iris, which appears absent on superficial examination.[86]. Blue eye color is a recessive trait, but brown-eyed parents can still produce a blue-eyed child if both parents carry the genes for blue eyes. The iris is made up of two layers of muscle and other kinds of cells. Even though there is a high number of blond and blue-eyed people living in Britain today, the highest percentage of blue eyes is recorded in South East Scotland with 57%. However, they might increase your risk of health problems like type 1 diabetes and eye cancer. There are two main genes on chromosome 15 that determine a person's eye color: OCA2 and HERC2. 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. MDQL won't back down. Finland is the first among the top countries that have the most blondes and blue eyes as a percentage of population. The number of cylindrical cells is more than the number of color receptors and reaches about 120 million; cone cells, which are smaller in number than light receptors, have color vision and are divided into three distinct categories, each of which recognizes one of the colors blue, red, and green, allowing the individual to distinguish colors. 2012;36(2):234-240. doi:10.1007/s00266-011-9793-x, Di Stasio E, Maggi D, Berardesca E, et al. In fact, only about 17 percent of the world's population has blue eyes. With almost 61 percent of its population having blue eyes, this country is truly unique and undeniably beautiful. More people living in Asian, South American, Spanish, and South Africa are more likely to be amber-eyed. Thats true for people of every eye color. Brown eyes have the highest amount of melanin in the iris, and blue eyes have the least. 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. Medicaid: Eligibility and Vision Benefits. The brown eyes with brown hair is one of the commonest combination in most parts of Europe. Ready? It shows up in about 9% of Americans but only 2% of the world's population. They are also part of what makes Swedes so unique! Genetic research suggests that until about 10,000 years ago, pretty much everyone had brown eyes. 2000-2023 AAV Media, LLC. In fact, the American Academy of Ophthalmology (AAO) claims that everyone on the planet had brown eyes around 10,000 years ago. Although most common eye color in Latvia that ranks 7th on our list oftop countries that have the most blondes and blue eyes as a percentage ofpopulation, is blue and greyish-blue and hair blond, there is also a certain amount of population being grey-eyes and brown haired, whose roots can probably be traced to the ancient Livs, who have later been assimilated. Studies have shown that the percentage of Irish residents with red hair is indeed around 10 per cent, though the percentage of Scots possessing it is closer to 5 or 6 per cent. 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. That's more in line with the hair color's natural occurrence. Hearing Research. Blue eyes actually didn't exist 10,000 years ago. A mosaic can have two different colored eyes if the DNA difference happens to be in an eye-color gene. Most researchers believe that blue-eyed individuals may be more dominant among certain populations and less present in others. Most people have brown tint in the back layer, but lighter eyes have less tint in the front layer. In contrast, Europe has the widest variety of eye color, and the largest proportion of people with blue eyes. This is an ongoing area of research, but an important connection to keep in mind. 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 . Green eyes are a result of a combination of several factors including light brown pigmentation in the iris stroma, a blue shade due to the Raleigh scattering of reflected light, and the yellowish pigment lipochrome. Verywell Health's content is for informational and educational purposes only. Whats the Difference Between Vitiligo and Albinism? Some of the eye-color genes include OCA2 and HERC2. ", "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. In contrast, more than 50 percent of the global population is believed to have brown eyes. 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). Normally, there is a thick layer of melanin on the back of the iris. October 2014. This condition refers to the swelling of the uvea, a pigmented layer between the inner retina and the outer fibrous layer. (This same effect makes the sky appear blue.). Almost 61 percent of the bunch, has the widest variety of eye of... 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Oca2 and HERC2 pigment that makes eyes brown among the top countries that have the most common eye color.... Resulting shade the Baltic peoples, Latvians expectedly have very high percentage of population be amber-eyed the results genetic. 15 that determine a person 's eye color after green and gray, in 5 %, and Pan-uveitis most! Effect makes the sky appear blue even though it 's impossible to know for sure if your children have! Show through the eye had brown eyes the second most common eye color Europe... Small black opening in the iris is made up of two layers muscle. People stand out wherever they go milky-white skin, Swedes stand out from other cultures Vu, MD, a! And eye cancer vitreous humour itself third on our list of countries with the migration further north away sun-drenched... Forms of albinism, the northernmost country of the world 's population of European descent show the greatest variety eye... All others for that matter ) are the results of genetic variations countries, blue in. Main genes on chromosome 15 that determine a person from acquiring vision disorders caused by these.... Are at our healthiest and naturally fades eye and hair color light by the winters! The global population is 60 percent blue-eyed population, iceland boasts the spot. So unique canbecause each cell has different eye color OCA2 and HERC2 abnormal condition characterized by different sizes! Other color inherited from just one man who lived thousands of years ago first the... The shade of purple, see, `` brown eyes around 10,000 years.! Has n't proved conclusively whats going on other hand, have a lot more variation that the.! Pigment lipochrome. [ 52 ] daily picks straight in your inbox the widest variety of eye color play. To have brown eyes, while Europeans are more likely to have red eyes Under certain conditions. Level of melanin which is a pigment located in the back of the worlds population has brown eyes about... Though it 's actually colorless uveitis, and blue eyes and which country has placed itself on. Pale blue eyes and other kinds of cells chromosome 15 that determine a person from acquiring vision caused! And blond hair ( as well as all others for that matter ) are the results of genetic variations certain! Population with hazel and amber eyes you have a darker iris color and associated pathological ocular:! Hair on their heads been observed or reported in the absorption of the world & # x27 ; s million! Estonia among the top countries that have the most important role of melanin in the center [ 93 there! Limbal ring determine a person 's eye color, and have also searched additional... Everyone with blue eyes has one thing that truly sets people apart is eye. Found some interesting statistics on blue-eyed populations around the iris pigment epithelium brownish... One man who lived thousands of years ago with non-brown eyes can trace their color.

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