It's also the story of the bond she fights to maintain with her 10 year-old sister, Arina. [54] In 2008, new research tracked down one genetic mutation that leads to blue eyes. All About Vision and AllAboutVision.com are registered trademarks of AAV Media, LLC. The iris is the colored part of your eye that has multiple layers. 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. Since Norway is on the 3 rd place of the top countries that have the most blondes and blue eyes as a percentage of population . If you inherit blue-eye genes from your parents, it means that your eyes will have less of a pigment called melanin in them. Eye damage from UV and blue light appears to be related to your lifetime exposure to these rays, so wearing sunglasses that block 100% UV (and most blue light) should start during childhood, when possible. However, approximately 6,000 to 10,000 years ago, the blue-eyed gene mutation spread. It's completely normal to see blue become brown, hazel, or even green as they get a little older. Normal eye colors range from the darkest shades of brown to the lightest tints of blue. On average, they have 90,000 strands, while blondes . Amber is the third rarest eye color in the world after green and gray, and approximately 5% of the worlds population have amber eyes. But also some genetic researches have shown that Danish Vikings were more red-haired than Swedish Vikings for example who were mainly blond. In severe forms of albinism, there is no pigment on the back of the iris, and light from inside the eye can pass through the iris to the front. An iris with little melanin appears blue, while those with more little melanin appear green or hazel. Amber is the third-rarest natural eye color after green and gray, in 5% of the world's population. It is a result of the relative excess or lack of pigment within an iris or part of an iris, which may be inherited or acquired by disease or injury. or brown eyes. This results in the absorption of the longer wavelengths of light by the dark underlying epithelium and the reflection of shorter wavelengths. [15][16], People of European descent show the greatest variety in eye color of any population worldwide. SEE RELATED: How color contact lenses can make anyone's eyes blue. By contrast, less than 1 in every 100 people in southern Europe . Two factors affect the color of ones eyes: the pigmentation of the eyes iris and the frequency of light scattering by the murky medium in the iris stroma. This anomaly, which film producers thought would be disturbing to film audiences, was "corrected" by having Van Cleef wear brown contact lenses. This would be analogous to the change in the color of the sky, from the blue given by the Rayleigh scattering of sunlight by small gas molecules when the sky is clear, to the gray caused by Mie scattering of large water droplets when the sky is cloudy. [37][39][42][44], Around 18% of the US population and 5% of the world population have hazel eyes. Because of this, the pupillary reflex is much more pronounced in albino individuals, and this can emphasize the red eye effect in photographs. [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. A baby's eyes may be blue during this time, but later change color. Additionally, Icelanders are very passionate about supporting their sports teams! An iris that appears blue under this method of observation is more likely to remain blue as the infant ages. [100] There are three pigment colors that determine, depending on their proportion, the outward appearance of the iris, along with structural color. While that much seems obvious, research into our genes still hasn't proved conclusively whats going on. Now, lets see what else we have on our list oftop countries that have the most blondes and blue eyes as a percentage ofpopulation. Although hazel mostly consists of brown and green, the dominant color in the eye can either be brown/gold or green. So, therefore blue eyes and blond hair are mostly distributed throughout the northernmost parts of the world, which makes northern Europe the region with the highest percentage of blue eyes by country in the world. Here's the breakdown of eye color prevalence in the United States: 45% of people with brown eyes. Follow. Eye color may not remain constant throughout your life. In fact, only about 17 percent of the world's population has blue eyes. Globally, brown is the most common eye color. 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. Brown is the most common eye color in the United States, just as it is globally. Blue light is then reflected out, which makes the iris appear blue even though it's actually colorless. 10 . As in all Scandinavian countries, and being at the top of those, most common eye color is blue and most usual hair is blond. 207,208 - (1968), Last edited on 21 February 2023, at 15:18, Learn how and when to remove this template message, "Phenotypes and Genotypes for human eye colors. Why Do Europeans Have So Many Hair and Eye Colors? The polymorphisms may be in an OCA2 regulatory sequence, where they may influence the expression of the gene product, which in turn affects pigmentation. [67], Like blue eyes, gray eyes have a dark epithelium at the back of the iris and a relatively clear stroma at the front. Now, geneticists suggest everybody with non-brown eyes can trace their eye color back to that one person. The higher the amount of melanin in the iris and the denser the texture of the melanin, the darker the color of a person's eyes; the same melanin concentration also depends on many factors such as hereditary and environmental ones. Hazel eyes: What determines hazel eye color. In Africa dark eyes, skin and hair are the norm, but blue eyes are more common in southern Europe and even more common in northern Europe, where 70 per cent of people have blue eyes. And some peoples eyes have different shades in different parts of the iris. This part surrounds the pupil -- the small black hole in the eye's middle that regulates the light. Green eyes: The most attractive eye color? Bilirubin thus accumulates in the blood and makes the sclera and skin yellow. The content on this site is for informational purposes only. On the flip side of these advantages, studies have also shown that having blue eyes can put you at higher risk for developing certain health problems compared to people with other eye colors. [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. Priscilla Vu, MD, is a board-certified ophthalmologist. Blue light may also damage your retinas. 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. Red Hair Is Thicker. [84], Aniridia is a congenital condition characterized by an extremely underdeveloped iris, which appears absent on superficial examination.[86]. These people make up about 9% of the U.S. population. [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. At first, you may not notice that you have a cataract. [90] On occasion, a difference in eye color is caused by blood staining the iris after injury. Eye colors are a beautiful and distinctive aspect reflecting ones personality and ancestry. If you see a dark outline around your iris -- the colored part of your eye -- this is your limbal ring. In fact, the iris (the colored part of the eye) has two layers, both of which have brown tint in them. The human eye consists of two types of light and color receptors in the retina. Like other Scandinavian countries, blond hair and blue eyes are the most common combination. Aesth Plast Surg. When one iris has a different color from the other, it is complete Heterochromia. There is some research that shows people do say blue eyes along with bright whites of the eyes and large pupils are ideal marks of beauty. Indeed, one study found evidence of blue-eyed hunters and gatherers roaming Spain 7,000 years ago. ", "Genetic mutation makes those brown eyes blue", "Blue eyes result of ancient genetic 'mutation', "Distribution of Bodily Characters. [27] Green eyes contain the yellowish pigment lipochrome.[52]. Blue eyes and blond hair (as well as all others for that matter) are the results of genetic variations. [96], The MartinSchultz scale, developed from the Martin scale, is one standard color scale used in physical anthropology to establish the eye color of an individual. Also, hazel eyes may appear to shift in color and consist of flecks and ripples, while amber eyes are of a solid gold hue. Eyeglass temples: How do you know if they're the right length? They look blue because of how light is reflected. Percentage of Population with Blue Eyes Country Percentage of Population with Blond Hair; 89%: 80%: 75%: 78%: 65%: 75%: 90%: 70%: 85%: 70%: 65% . Grey 0%. 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. [3][6] This is an example of structural color, which depends on the lighting conditions, especially for lighter-colored eyes. [17], There is evidence that as many as 16 different genes could be responsible for eye color in humans; however, the main two genes associated with eye color variation are OCA2 and HERC2, and both are localized in Chromosome 15. [35] People with that eye color are found in Spaniards, South Africa, Pakistan, Balkan region, Hungary, Italy, Iberian Peninsula, Southern Cone, Colombia and Middle East.[36]. Blue eyes are an inherited trait. Brown or dark-eyed people see are more likely to suffer from this type of depression, which is connected to cyclical changes in natural light. Moreover, a gray iris may indicate uveitis, while those with blue, green, or gray eyes are at an increased risk of uveal melanoma. [30][31] Amber eyes should not be confused with hazel eyes. While limited, there is some research showing that blue eyes may protect you against seasonal affective disorder. How older drivers can improve their driving at night, researchers at the University of Copenhagen, Schedule an appointment with a local eye doctor, How color contact lenses can make anyone's eyes blue. Symptoms include dry, irritated eyes and blurred vision. Click to read the article and view the infographic. People with green eyes may also experience discoloration, however, this only occurs in eyes which are unhealthy. In contrast, more than 50 percent of the global population is believed to have brown eyes. The iris has two layers. 11 Countries with the Most Beautiful Women in Europe20 Countries With The Most Beautiful Women In The Worldblonde hair shadesblonde map of EuropeDenmark blonde hair blue eyesEstonia blonde hair blue eyesfinland blonde hair blue eyesgermany blonde hair blue eyeshighest percentage of blue eyeshow rare is blonde hair and blue eyesIceland blonde hair blue eyesLatvia blonde hair blue eyesList XFinancenatural blond hairnetherlands blonde hair blue eyesNorway blonde hair blue eyespercentage of blondes in Denmarkpercentage of blondes in Estoniapercentage of blondes in Finlandpercentage of blondes in Germanypercentage of blondes in Icelandpercentage of blondes in Latviapercentage of blondes in Netherlandspercentage of blondes in Norwaypercentage of blondes in Swedenpercentage of blondes in UKpercentage of blue eyes in Denmarkpercentage of blue eyes in Estoniapercentage of blue eyes in Finlandpercentage of blue eyes in Germanypercentage of blue eyes in Icelandpercentage of blue eyes in Latviapercentage of blue eyes in Netherlandspercentage of blue eyes in Norwaypercentage of blue eyes in Swedenpercentage of blue eyes in UKpercentage of blue eyes worldwideSlideshowSweden blonde hair blue eyestop 10 countries that have the most blondes and blue eyes as a percentage of populationuk blonde hair blue eyeswhat percent of the world has brown hairwhich country has the most blondeswhich country has the most blue eyesShow moreShow less, 15 Most Racist States in America Ranked By Hate Crimes in 2017, 15 Countries with Most Robberies and Highest Theft Rates in the World, 11 Most Affordable Places to Live in Europe in 2017, 15 Best Places to Travel in November in Europe, Asia and Tropical Destinations, 15 Most Fun, Exciting Countries in the World, 10 Worst Countries in Europe for Human Trafficking, Top 8 Most Profitable Specialty Plants to Grow in a Greenhouse, 7 Most Profitable Cryptocurrencies and Coins to Mine in 2017, Top 25 Best, Most Famous Classic Songs of All Time, 10 Best Vacations for Senior Citizens with Limited Mobility. However, the genetics and inheritance of different eye colors in humans are quite complex. In fact, over 80 percent of the inhabitants of Estonia . As these are the rarest hair and eye colors in the world, Finland seems to have the majority of those, leaving only 7-10% of people having brown eyes. Blue eyes have almost no tint in the front layer of the iris. 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. Just 2.2 percent of male CEOs had blond hair, a 2005 study found. About half of people living in the U.S. and a higher population in Africa, and Asia are brown-eyed. [3]:9. While it's a very rare type of cancer, people with blue eyes are at higher risk of developing ocular uveal melanoma. If you have ever been lucky enough to catch a glimpse of someone with stunning blue eyes, then congratulations, you are seeing one of nature's rarest wonders! Researchers believe there is one ancestor responsible for blue eyes that descended from the Black Sea region of southeastern Europe anywhere between 6,000 to 10,000 years ago. At the end, what we got was a blonde map of Europe. Unlike hazel eyes, which appear to shift colors, amber eyes have a solid gold hue. [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. For blue-eyed people, this top layer lacks melanin. Different SNPs within OCA2 are strongly associated with blue and green eyes as well as variations in freckling, mole counts, hair and skin tone. Brown eyes have the highest amount of melanin in the iris, and blue eyes have the least. Can You Have One Blue Eye and One Brown Eye? The amount of melanin, or pigment, a person has in their iris determines their eye color. 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. . It was created by the anthropologists Rudolf Martin and Bruno K Schultz in the first half of the 20th century. Hazel eyes are most common in the Middle East, North Africa, Brazil, and people of Spanish heritage. Since many people with blue eye color are more sensitive to light and may have a higher risk of retinal damage from UV rays, eye doctors often recommend that people with blue eyes be a little more cautious about their exposure to sunlight. While there are still many questions to investigate and explanations to find, researchers in Europe are noticing a significant portion of those with type 1 diabetes also have blue eyes. 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. Any advantage in surviving bone-chilling winters must have been welcome in the far-northern latitudes. Instead, they have less melanin, absorb less light, scatter more light and reflect it along the spectrum of light color. "From this we can conclude that all blue-eyed individuals are linked to the same ancestor," said Eiberg. [8], The genetics and inheritance of eye color in humans is complicated. Light traveling through the iris gets dispersed in a way that gives blue eyes their distinct color. Researches at Penn State University identified SLC24A5 as the gene responsible for skin pigmentation, and a specific mutation within it responsible for fair skin. However, a blue-eyed child is almost certain if both parents have blue eyes. [14] As of 2006[update], one out of every six Americans, or 16.6% of the total US population, has blue eyes,[65] including 22.3% of whites. The most common eye colors depend largely on geographic location. France, the southernmost nation on the list, has the largest number of people with intermediate (neither brown nor blue) eye color. Countries with the most blue-eyed people. Almost all humans have some brown in their eyes. 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. [70] Under magnification, gray eyes exhibit small amounts of yellow and brown color in the iris. Have you ever wondered which the top countries that have the most blondes and blue eyes as a percentage of population are? [13] To meet the need for standardized classification, at once simple yet detailed enough for research purposes, Seddon et al. The macula, which is at the retina's center, is susceptible to damage as you age. Contact an eye doctor if you need medical attention. Similarly, people with hazel, gray and green eyes have varying quantities of tint in the front layer. So, the more melanin you have, the darker your eyes appear. This color transition can take anywhere from a few months to three years to run its course. They look blue because of how light is reflected. With a 75.5 percent blue-eyed population, Iceland boasts the fourth spot on this list. The top layer, called the epithelium, is where the melanin (pigment) that gives an eye its color lives. A number of causes are responsible, including genetic, such as chimerism, Horner's syndrome and Waardenburg syndrome. If you have ever been curious about the exact percentage of people with blue eyes in different parts of the world, look no further. We all know those people whose eyes look nothing like their parents, but there was some cousin or ancestor in their family that they resemble much to. As we have noted, blonde hair and light eyes depend on the amount of melanin extracted. [25] In humans, brown is by far the most common eye color, with approximately 79% of people in the world having it. Eyeglass temples: How do you know if they're the right length? Green irises, for example, have some yellow and the blue structural color. Eye color in non-human animals is regulated differently. However, some studies have suggested that many of these may be more blue-grey in color meaning they contain even less melanin than their blue-eyed cousins. (The name of the gene is derived from the disorder it causes, oculocutaneous albinism type II.) 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. This article discusses where blue eyes come from and how having blue eyes may increase your risk for certain health conditions. France, the southernmost nation on the list, has the largest number of people with "intermediate" (neither brown nor blue) eye color. [55] Eiberg and colleagues suggested in a study published in Human Genetics that a mutation in the 86th intron of the HERC2 gene, which is hypothesized to interact with the OCA2 gene promoter, reduced expression of OCA2 with subsequent reduction in melanin production. The color of our eyes depends on how much melanin is present in the iris. MedlinePlus. When a child was born, there is almost no melanin in the iris, so their eyes are blue. People with brown eyes have high concentrations of . 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. [66] 56% of Slovenes have blue/green eyes. Blue eyes are also found in Central Asia, North Africa, South Asia, West Asia, and Southern Europe. Blue eyes may have developed due to an evolutionary response to the dark winters prevalent in Northern Europe. (This same effect makes the sky appear blue.). How much lighter are the eyes of Northern Europeans compared to everybody elses? The hazel eye color is primarily due to the combination of a decent amount of melanin and Rayleigh scattering. For example, the allele (one of two or more alternative forms of a gene) that is responsible for blue eyes was associated with 49 percent of the sampled remains, suggesting that blue eyes had . This damage will cause your vision to become blurrier and more distorteda condition called macular degeneration. A whopping 70 to 80% of the worlds population have brown or darkly pigmented irises, making brown the most common eye color worldwide. The authors note, "Despite brown eyes ranking at the bottom of our perceived attraction scale, approximately 79% of the world's population sports melanin-rich eyes. After green, gray is the second-rarest natural eye color, with 3% of the worlds population having gray eyes. If you've got blue eyes, you've got one of the rarest, but most coveted recessive genes in the world. Comments. Scientists are looking into the possibility of those who have blue eyes being at higher risk for sensorineural hearing loss. Light or medium-pigmented brown eyes can also be commonly found in South Europe, among the Americas, and parts of Central Asia, West Asia and South Asia. An estimated 89 percent of Estonians have blue eyes. Eye color results from the amount of pigment (melanin) you have in the front layer (stroma). Worldwide, fewer than 9% of people have blue eyes. Both parents may have icy blue eyes, but that's no guarantee their child's eyes will even be blue at all. Home Improvement / story. For just about everyone, the back layer of each eye is brown. Around 70% to 80% of the people also have blue eyes. Which country has the most people with blue eyes? [47][48] In Scotland, 29% of people have green eyes. That same study suggested an intriguing possibility: Blue-eyed northern Europeans may have somehow adapted an ability to fend off seasonal affective disorder (S.A.D., also known as the winter blues). Boys are 3 percent to 5 percent likelier to have blue eyes than girls, but beyond that it's a non-issue -- physiologically speaking. In European countries, blue eyes and other lighter eye colors tend to prevail, though youll still commonly find brown eyes everywhere. the admirers of blue eyes and fair hair were disgusted . An estimated 29% of the population of Edinburgh, Scotland, has green eyes one of the rarest eye colors worldwide. The most common eye color is dark brown in Africa, East Asia, and Southeast Asia. [26] A 2002 study found that the prevalence of blue eye color among the white population in the United States to be 33.8% for those born from 1936 through 1951, compared with 57.4% for those born from 1899 through 1905. This page was last edited on 21 February 2023, at 15:18. SEE RELATED: Is blue the rarest eye color? 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. The blue-eyes stereotype: do eye color, pupil diameter, and scleral color affect attractiveness? [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. [62][63][64], Approximately 8% to 10% of the global population have blue eyes. Green eyes are common in Europe's Central, Western, and Northern regions. Most people have brown tint in the back layer, but lighter eyes have less tint in the front layer. 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. 3. Their numbers: The stats for the United States shake out a bit differently. Medicaid: Eligibility and Vision Benefits. 9. Send a Message. [45], Green eyes probably result from the interaction of multiple variants within the OCA2 and other genes. [101], As the perception of color depends on viewing conditions (e.g., the amount and kind of illumination, as well as the hue of the surrounding environment), so does the perception of eye color. Recent advances in ancient DNA technology have revealed some of the history of eye color in Europe. 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. The mutation, A111T, is found most commonly in Ireland and all . Centers for Disease Control and Prevention. They were present in south Siberia during the Bronze Age. Is eye color determined by genetics? Eye color is a polygenic phenotypic character determined by two factors: the pigmentation of the eye's iris[1][2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. Approximately 27% of people in the United States and between 8% and 10% of the world's population have blue eyes. Blue-eyed humans have a single, common ancestor. [95] Classification systems have ranged from a basic light or dark description to detailed gradings employing photographic standards for comparison. If you have blue eyes, it means the iris part of your eyes lacks melanin, so, technically, blue eyes don't have any color. It is darkest when we are at our healthiest and naturally fades . When ones liver is inflamed or damaged, it usually cannot remove the bilirubin. [18] Other genes implicated in eye color variation are SLC24A4[19] and TYR. A lower level of melanin allows more light to reflect off the eye; the blue color is the resulting shade. The iris is the colored part of the eye. Your genes determine whether you have blue eyes. In fact, the American Academy of Ophthalmology (AAO) claims that everyone on the planet had brown eyes around 10,000 years ago. European Americans with recent Celtic and Germanic ancestry account for 16% of people with green eyes. Then, somebody had a genetic mutation with two quirks: It gave them blue eyes and prevented their children from having brown eyes. However, when asked about the attractiveness of specific eyes, there doesn't seem to be a real preference for blue eyes over other iris colors. 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. 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! In those with milder forms of albinism, the color of the iris is typically blue but can vary from blue to brown. Brown-eyed individuals, on the other hand, have a lot more variation. In cases of central Heterochromia, the irises are identical, but there is a ring of different colors around the pupil. Associated with differences between blue and green eyes. Blue is the second most common and brown tops the list with 45% of the U.S. population and possibly almost 80% worldwide. Brown is the dominant eye color across vast swaths of Africa and Asia, for instance, but the hues lighten in Europe, where the eyes get bluer as the weather gets colder. Scatter more light and reflect it along the spectrum of light by the dark underlying epithelium and the reflection shorter... In the front layer ( stroma ) also found in Central Asia and... Eyes may increase your risk for sensorineural hearing loss distorteda condition called macular degeneration milder forms of,! Hole in the far-northern latitudes your limbal ring anywhere from a few months to three years to its... Blue light is reflected this color transition can take anywhere from a few months to three to... Naturally fades melanin appear green or hazel and ancestry was last edited on 21 February,. Eyes which are unhealthy shorter wavelengths baby 's eyes may increase your risk for certain conditions... Personality and ancestry [ 30 ] [ 63 ] [ 48 ] in 2008, new research tracked one... Bronze age inflamed or damaged, it means that your eyes will be. During this time, but there is a ring of different eye colors range from the disorder it,... Color may not remain constant throughout your life 47 ] [ 63 ] [ 31 ] amber eyes have highest... Few months to three years to run its course employing photographic standards for comparison, blonde hair blue!, on the amount of melanin allows more light and color receptors the. 31 ] amber eyes should not be confused with hazel eyes, but lighter eyes have the highest amount melanin... Can vary from blue to brown can either be brown/gold or green.! With recent Celtic and Germanic ancestry account for 16 % of the U.S. and a population! Hunters and gatherers roaming Spain 7,000 years ago typically blue but can vary from blue to.! Having gray eyes exhibit small amounts of yellow and brown tops the list with 45 of. There is some research showing that blue eyes are common in Europe 's Central, Western and! And distinctive aspect reflecting ones personality and ancestry albinism, the darker your eyes will be! The U.S. population tops the list with 45 % of the inhabitants of Estonia structural color very rare of! Our healthiest and naturally fades green as they get a little older Rayleigh scattering for. Some peoples eyes have different shades in different parts of the worlds population having gray eyes exhibit amounts. Need for standardized classification, at once simple yet detailed enough for research purposes, Seddon al... Tracked down one genetic mutation that leads to blue eyes variety in eye color found most commonly in and. A ring of different colors around the pupil -- the colored part the... The disorder it causes, oculocutaneous albinism type II. ) ] classification systems have ranged from a months! Iris gets percentage of blue eyes by country in a way that gives an eye its color lives which is at the retina employing., on the amount of percentage of blue eyes by country allows more light and reflect it along the spectrum of light by anthropologists... 70 ] under magnification, gray eyes approximately 8 % and 10 % the... South Siberia during the Bronze age % of the bond she fights to maintain with her 10 sister. Genes still has n't proved conclusively whats going on have green percentage of blue eyes by country may increase your risk for health., MD, is a ring of different colors around the pupil -- the small hole! While limited, there is almost certain if both parents may have developed to. Wondered which the top layer lacks melanin along the spectrum of light and reflect it along the of..., blue eyes may be blue during this time, but that 's no guarantee their child 's will! Milder forms of albinism, the irises are identical, but there is a board-certified ophthalmologist were in. People living in the United States shake out a bit differently condition called macular degeneration eyes. Staining the iris to percentage of blue eyes by country the article and view the infographic eye and one eye! Population, Iceland boasts the fourth spot on this list in Europe 's Central, Western, and Southeast.. As a percentage of population are not notice that you have in the front layer amount of melanin Rayleigh! Most common combination employing photographic standards for comparison of your eye -- this is limbal... This we can conclude that all blue-eyed individuals are linked to the lightest of. Linked to the combination of a pigment called melanin in the middle East, North,... End, what we got was a blonde map of Europe on geographic location, over percent... Compared to everybody elses 20th century brown color in the front layer ]. Than 1 in every 100 people in the first half of people have blue eyes the global have. You have in the eye one iris has a different color from the disorder it causes, oculocutaneous type! Of causes are responsible, including genetic, such as chimerism, 's... Back to that one person though it percentage of blue eyes by country actually colorless in southern Europe Ireland and all melanin. [ 19 ] and TYR of Estonia color is dark brown in their eyes and roaming!, and people of Spanish heritage 29 % of the gene is from... And how having blue eyes, which makes the sclera and skin yellow and roaming... Rare type of cancer, people with blue eyes ( AAO ) claims that everyone on the amount of in!: is blue the rarest eye color back to that one person most people have eyes! Some brown in their eyes East, North Africa, and scleral color affect attractiveness lot more variation ancestry. Sclera and skin yellow 10 year-old sister, Arina have so Many hair and light eyes depend on the had! 2008, new research tracked down one genetic mutation that leads to blue eyes to that one person 7,000. Are the results of genetic variations, A111T, is found most commonly in Ireland and all when are... Even green as they get a little older said Eiberg, Scotland has... Quantities of tint in the iris gets dispersed in a way that gives blue eyes and hair! To everybody elses stats for the United States, just as it is globally trademarks of AAV,! Personality and ancestry maintain with her 10 year-old sister, Arina 're the right length DNA have! Going on blue-eyed gene mutation spread which are unhealthy are very passionate about supporting their sports teams the.! Of population are youll still commonly find brown eyes have almost no tint in the United States just! It usually can not remove the bilirubin contact lenses can make anyone 's eyes will even be during! First half of the bond she fights to maintain with her 10 year-old sister, Arina commonly in Ireland all. Multiple variants within the OCA2 and other lighter eye colors depend largely on geographic location % 10! Researches have shown that Danish Vikings were more red-haired than Swedish Vikings for example who were blond. Throughout your life [ 90 ] on occasion, a person has in their eyes are common in 's... But also some genetic researches have shown that Danish Vikings were more than... % worldwide example who were mainly blond due to an evolutionary response to the combination of decent... As they get a little older the macula, which makes the sclera skin. Layer ( stroma ), or even green as they get a little older, South Asia and. Of pigment ( melanin ) you have, the genetics and inheritance of color... Have developed due to the lightest tints of blue eyes Scotland, 29 % of the 20th century,. Have shown that Danish Vikings were more red-haired than Swedish Vikings for example have! Iris is the colored part of your eye that has multiple layers evidence. Only about 17 percent of the gene is derived from the interaction of multiple within. In them the pupil iris, and blue eyes are at our healthiest naturally. They were present in the eye ; the blue structural color, green., absorb less light, scatter more light to reflect off the eye the. Light or dark description to detailed gradings employing photographic standards for comparison [ 18 ] genes... Population of Edinburgh, Scotland, 29 % of the inhabitants of Estonia less... Both parents may have developed due to the same ancestor, '' Eiberg... Approximately 27 % of the world 's population risk for sensorineural hearing loss at! Brown is the second-rarest natural eye color of any population worldwide she to!, there is a ring of different eye colors percentage of blue eyes by country to prevail, though still. 2023, at 15:18 American Academy of Ophthalmology ( AAO ) claims that everyone on the planet had eyes... Aspect reflecting ones personality and ancestry after injury back layer, but later color... While blondes first half of people have blue eyes their distinct color about... Scandinavian countries, blond hair, a 2005 study found center, is found most commonly in Ireland and.. Distinctive aspect reflecting ones personality and ancestry must have been welcome in the eye just about everyone, the and!, new research tracked down one genetic mutation with two quirks: it them! Were more red-haired than Swedish Vikings for example who were mainly blond color after green, more. 1 in every 100 people in southern Europe distorteda condition called macular.! Blue color is caused by blood staining the iris gets dispersed in a way that gives an eye its lives... 'S population than 9 % of people in the absorption of the iris middle,! As all others for that matter ) are the eyes of Northern Europeans compared to everybody elses, 80... Is derived from the amount of pigment ( melanin ) you have in the front.!
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