![]() Waardenburg syndrome can also impact the eye color in people of color. It’s rare to see Black babies born with blue eyes but not impossible. Black People With Blue EyesĬusters’ 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 originating in Europe. More than 80 percent of the inhabitants of Estonia and Scandinavian countries have blue eyes. Europe was the epicenter of the blue-eye gene mutation. Where Do You Find The Majority of Blue-Eyed People?Įurope has the widest variety of eye color, according to Custers, who adds those of European descent are the largest population of blue eyes. There are some exceptions, as health conditions such as Waardenburg syndrome and ocular albinism can affect pigmentation and as many as six different eye colors. It is believed that almost every blue-eyed person on earth today inherited the same gene mutation from the same source, according to research from Edmund Custers, who has spent more than a decade in clinical research writing about human anatomy and physiology. Because the melanin concentration is too low to produce brown eyes, blue eyes are produced instead. ![]() Scientists believe the mutation altered the amount of melanin produced in the iris of the eyes. Melanin is the substance that gives skin, hair, and eyes their color. The OCA2 gene formerly called the P gene is a gene code that produces a pigment called melanin, according to scientists with Medline Plus. “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.” “Originally, we all had brown eyes,” Professor Hans Eiberg from the university’s Department of Cellular and Molecular Medicine, argues in the study. children, free time, vacations, psychology, education and leisure concept. The team found that all the participants have the same DNA sequence for blue eyes, thanks to a genetic mutation that took place an estimated 10,000 years ago. portrait of a caucasian girl, wearing a woolen cap, looking at the camera, with big blue eyes. The Science Behind Blue EyesĮarly research from the University of Copenhagen studied 800 men and women from several countries with blue eyes. To understand how this uncommon occurrence can happen, you must first look at the origins of blue eyes, which scientists say is a fairly newer phenomenon. A majority of these people are of European descent, however, Black people can be bornwith blue eyes even though it’s pretty rare. Countries with the most blue-eyed people.Blue is the second most common eye color globally, with an estimated 8 to 10 % of people having blue eyes. A global view of the OCA2-HERC2 region and pigmentation. This is because these non-white ethnicities. doi:10.1016/j.heares.2014.12.002ĭonnelly MP, Paschou P, Grigorenko E, et al. Babies of African American, Hispanic and Asian descent are usually always born with dark eyes that stay that way. Eye color as a risk factor for acquired sensorineural hearing loss: A review. Mujica-Mota MA, Schermbrucker J, Daniel SJ. ![]() Blue eyes as a risk factor for type 1 diabetes. doi:10.1007/s0026-xĭi Stasio E, Maggi D, Berardesca E, et al. The blue-eyes stereotype: do eye color, pupil diameter, and scleral color affect attractiveness? Aesth Plast Surg. Gründl M, Knoll S, Eisenmann-Klein M, Prantl L. Is eye color determined by genetics?Ĭenters for Disease Control and Prevention.
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