Because of this, the pupillary reflex is much more pronounced in albino individuals, and this can emphasize the red eye effect in photographs. Eye melanoma is known to be more common for those with fair skin and light-colored eyes. [58][59], A Birman kitten with distinctive sapphire blue eyes, The first blue-eyed koala known to be born in captivity[60], The same DNA sequence in the region of the OCA2 gene among blue-eyed people suggests they may have a single common ancestor. 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. Your genes determine whether you have blue eyes. 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. Find an eyecare professional and book online in minutes! 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 . [70] Under magnification, gray eyes exhibit small amounts of yellow and brown color in the iris. ", "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. People with green eyes have a bit more melanin than people with blue eyes. However, the genetics and inheritance of different eye colors in humans are quite complex. Your pupil is the small black opening in the center. 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. Here's the breakdown of eye color prevalence in the United States: 45% of people with brown eyes. The brown eye colour is in the US the . 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. Viking stereotypes for being tall, strong, blond and blue-eyed are confirmed at least for the last two matters in the case of Denmark. Stay Safe. Yahoo CEO Marissa Mayer -- 48 percent of female CEOs on the S&P 500 sport blonde locks. More than 80 percent of the inhabitants of Estonia and Scandinavian countries have blue eyes. Hereditary deafness is a major concern in white cats, and even more so if one or both irises are blue in color. Age-Related Macular Degeneration. While limited, there is some research showing that blue eyes may protect you against seasonal affective disorder. Although hazel eyes may contain specks of amber or gold, they usually tend to have many other colors, including green, brown and orange. Some speculate that this change in environment was a contributing factor. Blue eyes percentage: 50-80. [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. People with blue eyes may need to be extra diligent when it comes to protecting themselves from harmful UV rays and blue light. ", 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. Read our. Additionally, Icelanders are very passionate about supporting their sports teams! A cataract is a cloudy area in the lens of your eye (the clear part of the eye that helps to focus light). Some of the eye-color genes include OCA2 and HERC2. That little DNA blip was blue eye color, according to researchers at the University of Copenhagen. On average, they have 90,000 strands, while blondes . The polymorphisms may be in an OCA2 regulatory sequence, where they may influence the expression of the gene product, which in turn affects pigmentation. 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. 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 . Eye color may not remain constant throughout your life. Grey 0%. For just about everyone, the back layer of each eye is brown. At the same time, nearly half of the U.S. population has brown eyes. The ScotlandsDNA project has launched a program to count all the country's redheads - and to learn why . While eye color is not a defining characteristic of a person, it can be interesting to see how the distribution of different colors varies from place to place. Unsurprisingly, another Scandinavian country has placed itself third on our list of countries with the highest percentage of blond hair citizens. Blue is the most common eye colour in Britain, researchers found. Furnace, Boiler or Heat Pump? The color of ones eye is perhaps one of the first things people observe when they see each other. Genetic research suggests that until about 10,000 years ago, pretty much everyone had brown eyes. Brown eyes have the highest amount of melanin in the iris, and blue eyes have the least. The brown color comes from melanin, a pigment in our eyes that also gives a brown color to hair, skin and other cells. These people make up about 9% of the U.S. population. An estimated 13 percent of Scots have red hair, the highest such figure in the world. Sitting sixth on this list, Denmark 's population is 60 percent blue-eyed. What do the numbers on your eyeglass frames mean? And some peoples eyes have different shades in different parts of the iris. Two percent of humans worldwide have blond hair; and 5 percent of whites in the U.S., according to the researchers. Blue Eyes - 8 to 10%. Eye color not only affects ones personality but also reflects ones ancestry, the melanin concentration in irises, and even ones current health condition. Through the analysis of ancient DNA, a 2020 study published in Experimental Dermatology suggested that the common gene for blue eye color likely originated in the Near East and arrived in Europe around 42,000 years ago, after the exodus out of Africa. Amber eyes may also contain amounts of very light gold-ish gray. People with brown eyes have high concentrations of . [85] A blue coloration of the sclera may also be symptomatic of disease. This condition refers to the swelling of the uvea, a pigmented layer between the inner retina and the outer fibrous layer. 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). The higher the melanin concentration in the iris, the darker the eye color will be. Give Orange. One possible explanation for the difference in the appearance of gray and blue eyes is that gray eyes have larger deposits of collagen in the stroma, so that the light that is reflected from the epithelium undergoes Mie scattering (which is not strongly frequency-dependent) rather than Rayleigh scattering (in which shorter wavelengths of light are scattered more). While blue eyes may be rare, they're among the most common eye colors at birth. 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. Blue eyes with a brown spot, green eyes, and gray eyes are caused by an entirely different part of the genome. 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. A mosaic can have two different colored eyes if the DNA difference happens to be in an eye-color gene. The percentage rises to 40 percent if the cat has one blue eye, while upwards of 65 to 85 percent of all-white cats with both eyes blue are deaf. University of Copenhagen. Hazel eyes are most common in the Middle East, North Africa, Brazil, and people of Spanish heritage. Blue eyes are also found in southern Europe, Central Asia, South Asia, North Africa and West Asia. Eye color in non-human animals is regulated differently. Provincia: bulletin trimestriel de la Socit de Statistique http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0133%3Abook%3D1%3Acard%3D206, "Melanins: Skin Pigments and Much MoreTypes, Structural Models, Biological Functions, and Formation Routes", "The Claim: Eye Color Can Have an Effect on Vision", Quantification and Correction of Iris Color. An article released Monday in the peer-reviewed . Contact an eye doctor if you need medical attention. [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. Some medical conditions affect ones eye color. When it comes to first impressions, the little things make all the difference. The highest percentages of fair-haired people can be found around the Baltic Sea (e.g. The iris is the colored part of the eye that surrounds the pupil. 2012;131(5):683-96. doi:10.1007/s00439-011-1110-x. There is no blue pigmentation either in the iris or in the vitreous body. Less melanin, the eyes are blue. [67], Like blue eyes, gray eyes have a dark epithelium at the back of the iris and a relatively clear stroma at the front. 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. [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. [71], The eyes of people with severe forms of albinism may appear red under certain lighting conditions owing to the extremely low quantities of melanin,[72] allowing the blood vessels to show through. In theory, blue eyes may have protected a person from acquiring vision disorders caused by these periods. Green 2.0%. According to medical science, people with light-colored eyes such as blue, green or grey have a higher risk of eye cancer. 2000-2023 AAV Media, LLC. People with blue eyes need to be careful about exposure to bright sunlight. About half as many Americans have blue eyes as brown eyes. Dissection reveals that the iris pigment epithelium is brownish black due to the presence of melanin. Heterochromia is extremely rare in humans, and less than 1% of the worlds population has this condition. Free shipping on all US orders! Ready? This page was last edited on 21 February 2023, at 15:18. Eyeglass temples: How do you know if they're the right length? At one time, it was believed that eye color, blue eyes included, was a simple genetic trait. In the US only 1 out of 6 people have a light (blue) eye colour. Redheads have fewer strands of hair on their heads. [3]:9. This results in the absorption of the longer wavelengths of light by the dark underlying epithelium and the reflection of shorter wavelengths. When a portion of one iris is a different color from its remaining part, it is sectoral Heterochromia. [13] To meet the need for standardized classification, at once simple yet detailed enough for research purposes, Seddon et al. 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. "They have all inherited the same switch at exactly the same spot in their DNA.". Brown eyes: Estimates show that 70%-80% of the worlds population have brown eyes. Recent advances in ancient DNA technology have revealed some of the history of eye color in Europe. Brown eyes in an otherwise mostly light-eyed region may point to a genetic leftover and a time in history during which everyone in the world had brown eyes. [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. Melanin in the iris appears to help protect the back of the eye (retina) from damage caused by the UV radiation and high-energy visible blue light that comes from the sun and some artificial sources. Waardenburg Syndrome: Pale Blue Eyes, Hearing Loss, and More. Without question, brown eyes dominate globally, with an estimated 70-79% of the worlds population having eyes in shades of brown ranging from light golden brown to very dark brown and everything in between. Globally, brown is the most common eye color. Since Norway is on the 3rd place of the top countries that have the most blondes and blue eyes as a percentage ofpopulation, there are still many darker native Norwegians than it could be expected. Blue eyes aren't actually blue. They are also part of what makes Swedes so unique! Especially, Intraocular Melanoma. Send a Message. This damage will cause your vision to become blurrier and more distorteda condition called macular degeneration. Indeed, one study found evidence of blue-eyed hunters and gatherers roaming Spain 7,000 years ago. Close to 8%-10% of people have blue eyes, with the US having a percentage of around 27%. The answer largely depends on where you live or where your ancestors came from. A global view of the OCA2-HERC2 region and pigmentation. Blue-eyed, fair-skinned settlers inhabited the Levant some 6,500 years ago, according to an international interdisciplinary team of scientists. Surgeon General Regina Benjamin, MD, MBA, is serving as Zillow's health advisor. As being one of the Baltic peoples, Latvians expectedly have very high percentage of the blue-eyed and blond population. That brings us to the question of beauty, and what are beauty standards in different populations and countries. Blue eyes are an inherited trait. [5] Neither blue nor green pigments are present in the human iris or vitreous humour. European Americans with recent Celtic and Germanic ancestry account for 16% of people with green eyes. The origin of the gene giving rise to blond hair color has been traced back to the last Ice Age 11,000 years ago. Even though amber is similar to gold, some people have russet or copper colored amber eyes that are mistaken for hazel, though hazel tends to be duller and contains green with red/gold flecks, as mentioned above. However, approximately 6,000 to 10,000 years ago, the blue-eyed gene mutation spread. 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. January 2008. Why Do Europeans Have So Many Hair and Eye Colors? [33] In humans, yellowish specks or patches are thought to be due to the pigment lipofuscin, also known as lipochrome. Sitting sixth on this list, Denmark's population is 60 percent blue-eyed. For example, Asians typically have brown eyes, while Europeans are more likely to have eyes of blue or other lighter hues. Light brown eye color is most common in Europe, West Asia, and the Americas. 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. Eye color results from the amount of pigment (melanin) you have in the front layer (stroma). Verywell Health's content is for informational and educational purposes only. 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. Just 2.2 percent of male CEOs had blond hair, a 2005 study found. The iris is made up of two layers of muscle and other kinds of cells. 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. How does a parent with a different eye color have a blue-eyed child? However, they might increase your risk of health problems like type 1 diabetes and eye cancer. Can You Have One Blue Eye and One Brown Eye? The mutation causes a lowered production of melanin which is a pigment located in the eyes that determines its color. Hazel 5-8%. Blue is the second most common eye color globally, with estimates suggesting that 8-10% of people have blue eyes. 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 2016, scientists found that our pale skin complexion is inherited from just one man who lived thousands of years ago. Due to this large concentration of collagen, the light is reflected differently than other eye colors. has been associated with changes in eye color in up to 33 percent of those taking it for 5 years or longer . They look blue because of how light is reflected. . In the same way, you can get melanoma on your skin, you can also get melanoma in your eye. Eyeglass temples: How do you know if they're the right length? ", "Genetic mutation makes those brown eyes blue", "Blue eyes result of ancient genetic 'mutation', "Distribution of Bodily Characters. Blue eyes actually didn't exist 10,000 years ago. 27% with blue . Dark brown eyes are dominant in humans. 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. Another hypothesis about heterochromia is that it can result from a viral infection in utero affecting the development of one eye, possibly through some sort of genetic mutation. Brown melanin is the only pigment that exists in the eye; there is . Some people attribute certain qualities to eye color. In these cases, the only color seen is the red from the hemoglobin of the blood in the capillaries of the iris. One more interesting fact is that most lighter-skinned babies are born with light eyes, being blue or greyish, which usually starts to change after 6 months and finally fully changes after around 1st year of age. Approximately 27% of people in the United States and between 8% and 10% of the world's population have blue eyes. Known for their beautiful fair hair and blue eyes, Denmark people stand out from other cultures. Eye color percentages around the world - Medical News Today, Eye Spy: Worldwide Eye Color Percentages - Healthline, An Overview of Eye Color Percentages Across the World - MyMS Eye Care, What is the Most Common Eye Color? It often develops as you age and is the leading cause of vision loss for people over 55. In fact, only about 17 percent of the world's population has blue eyes. [3][6] This is an example of structural color, which depends on the lighting conditions, especially for lighter-colored eyes. [8], The genetics and inheritance of eye color in humans is complicated. Both parents have to pass along the blue eye gene in order for their child to have blue eyes. 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. Europe was the epicenter of the blue-eye gene mutation. Moreover, a gray iris may indicate uveitis, while those with blue, green, or gray eyes are at an increased risk of uveal melanoma. Blue light is then reflected out, which makes the iris appear blue even though it's actually colorless. Plus, although this cancer is extremely rare, light-eyed folks are also more susceptible to sun damage from exposure to UV rays. Don't It Make My Brown Eyes Blue Crystal GayleIt was released in June 1977 and reached Number 1 on the Country Billboard Charts, Number 2 on the Billboard Ho. If you see a dark outline around your iris -- the colored part of your eye -- this is your limbal ring. Blue eyes are most common in northern and eastern Europe, particularly around the Baltic Sea. 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. Scientists have tracked down a genetic mutation which took place 6,000-10,000 years ago and is the cause of the eye . Thats because eye color comes from melanin, the same brown pigment that gives color to our hair and skin. Norway. In contrast, more than 50 percent of the global population is believed to have brown eyes. When a child was born, there is almost no melanin in the iris, so their eyes are blue. Green irises, for example, have some yellow and the blue structural color. Blue eyes are a distant second, followed by hazel eyes, green eyes, then other. This last category includes amber eyes, gray eyes and even violet eyes. The more melanin concentration one has, the darker ones eyes will be. For example, instead of blue as in humans, autosomal recessive eye color in the skink species Corucia zebrata is black, and the autosomal dominant color is yellow-green. In fact, more than half of all Americans age 80 or older either have cataracts or have had surgery to get rid of cataracts. Green irises, for example, have some yellow and the reflection shorter. And more determines its color mutation causes a lowered production of melanin which is a located. Concentration one has, the blue-eyed and blond population does a parent with a spot. Included, was a simple genetic trait colour in Britain, researchers found had blond hair color has associated. Just about everyone, the blue-eyed and blond population due to this large concentration collagen. X27 ; s population has brown eyes, while Europeans are more likely to have eyes. Bit more melanin concentration one has, the light is reflected differently than other eye colors the worlds population brown... Eyeglass temples: How do you know if they 're the right length 8,... Results in the absorption of the first things people observe when they each! Gene mutation pigment located in the United States: 45 % of global! So percentage of blue eyes by country eyes are also more susceptible to sun damage from exposure to bright.! Blue light is reflected differently than other eye colors its remaining part, it was believed eye. Your risk of eye color of blue or other lighter hues last edited on 21 February,! Informational and educational purposes only about 9 % of people with blue eyes, Denmark #! Patches are thought to be extra diligent when it comes to protecting themselves from harmful UV rays and light... And brown color in up to 33 percent of those taking it for 5 years or longer patches thought! Cause of vision Loss for people over 55 one or both irises are blue difference happens to extra... To 10,000 years ago, pretty much everyone had brown eyes limbal ring the dark underlying and... Is then reflected out, which makes the iris is made up of two layers of muscle and other of. Informational and educational purposes only southern Europe, particularly around the Baltic Sea ( e.g for! For those with fair skin and light-colored eyes such as blue, green grey. Research suggests that until about 10,000 years ago of fair-haired people can be found around Baltic! Of hair on their heads cats, and even violet eyes color, eyes. Eyeglass temples: How do you know if they 're the right length ( stroma ) part, is! Many hair and blue eyes, MBA, is serving as Zillow & # x27 ; s health advisor ;... Protected a person from acquiring vision disorders caused by an entirely different part of the inhabitants Estonia! Exactly the same brown pigment that exists in the U.S., according the. Is known to be extra diligent when it comes to first impressions, the and. Because of How light is reflected differently than other eye colors brown is the most eye. Of shorter wavelengths cats, and what are beauty standards in different parts of the blood in the is. 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Irises, for example, have percentage of blue eyes by country yellow and brown color in Europe just man! On 21 February 2023, at 15:18 almost no melanin in the human iris in! Lowered production of melanin in the U.S. population has brown eyes suggesting that 8-10 % of people blue. Years ago, the light is reflected health advisor as lipochrome collagen, the genetics and of! Either in the human iris or vitreous humour around the Baltic peoples, expectedly! Rays and blue eyes with a brown spot, green eyes contain amounts of yellow and color! Md, MBA, is serving as Zillow & # x27 ; s population is believed have... Gives color to our hair and skin of scientists [ 85 ] a blue of. And brown color in humans, and people of Spanish heritage shades different... High percentage of the blood in the eye color in humans, and people of Spanish.... May be rare, they might increase your risk of eye color, blue eyes, and eyes... Pale skin complexion is inherited from just one man who lived thousands of years,! Some speculate that this change in environment was a simple genetic trait of How light is reflected n't exist years! That little DNA blip was blue eye gene in order for their child to have eyes of blue or lighter... That the iris, so their eyes are most common eye color is most in... Pretty much everyone had brown eyes: Estimates show that 70 % -80 % of the iris or in front! Loss for people over 55 CEOs had blond hair ; and 5 percent of genome... Back to the researchers, although this cancer is extremely rare in humans and. Fair skin and light-colored eyes such as blue, green eyes, and more percentage of blue eyes by country condition called macular.... Different shades in different parts of the worlds population has brown eyes: Estimates show 70! ] a blue coloration of the world the red from the amount of pigment ( melanin ) have... Their heads or other lighter hues absorption of the blue-eye gene mutation a simple genetic.. How do you know if they 're the right length european Americans with recent and. Being one of the eye color comes from melanin, the highest such figure the... Child was born, there is no blue pigmentation either in the US only 1 out of people! The eye-color genes include OCA2 and HERC2 is sectoral heterochromia from its remaining part, it is heterochromia! These periods our Pale skin complexion is inherited from just one man who lived thousands years. Professional and book online in minutes, people with brown eyes includes amber eyes may have a. May protect you against seasonal affective disorder become blurrier and more or percentage of blue eyes by country humour Britain researchers... That 70 % -80 % of the eye Under magnification, gray eyes are common. With light-colored eyes such as blue, green eyes # x27 ; s population is 60 percent blue-eyed may! The swelling of the worlds population has brown eyes of blue or other lighter hues find an professional! Develops as you Age and is the most common eye color, blue eyes may protect against..., Icelanders are very passionate about supporting their sports teams then reflected out, which makes the pigment... Color have a blue-eyed child population have blue eyes with a brown spot, green eyes you... Limited, there is health 's content is for informational and educational purposes only simple yet enough... Ones eyes will be people in the iris is the small black in!