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Feb 27, 2019 · About half as many Americans have blue eyes as brown eyes. Worldwide, fewer than 9% of people have blue eyes. Blue eyes aren’t even actually blue. Rather than including a blue pigment, they actually just lack the pigment that makes eyes brown. 1. Everyone with blue eyes is related
May 16, 2024 · Blue eyes are an inherited physical characteristic that only 8% to 10% of people worldwide have. Having blue eyes has advantages but may also put you at risk for disease. Learn more facts about blue eyes.
Feb 5, 2024 · This article discusses why some eyes are blue, interesting facts about blue eyes, and how the color of your eyes can affect your health. What Causes Blue Eyes? Scientists believe blue eyes result from a genetic mutation that reduces melanin production in the iris.
Unlike brown eyes, blue eyes have low concentrations of melanin in the stroma of the iris, which lies in front of the dark epithelium. 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.
- All blue-eyed people may have a common ancestor. It appears that a genetic mutation in a single individual in Europe 6,000 to 10,000 years ago led to the development of blue eyes, according to researchers at the University of Copenhagen.
- Blue eyes don't have blue pigment. As mentioned above, blue eye colour is determined by something called melanin. Melanin is a brown pigment that controls the colour of our skin, eyes and hair.
- You can't predict the colour of your child's eyes. At one time, it was believed that eye colour — including blue eyes — was a simple genetic trait, and therefore you could predict a child's eye colour if you knew the colour of the parents' eyes and perhaps the colour of the grandparents' eyes.
- Blue eyes at birth doesn't mean blue eyes for life. The human eye does not have its full adult amount of pigment at birth. Because of this, many babies have blue eyes, but their eye colour changes as the eye develops during early childhood and more melanin is produced in the iris.
Apr 21, 2023 · By Tim Newcomb Published: Apr 21, 2023 10:33 AM EDT. Save Article. erikreis // Getty Images. A 2008 study was the first official research noting that a single genetic mutation from less than 10,000...
Oct 31, 2019 · By Amanda Gardner. Updated: Apr. 23, 2024. Olesia Bekh/Getty Images. Do you have blue eyes? We talked to experts to discover curious facts about baby blues, including whether your biological...
