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Feb 27, 2019 · 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. Between 6,000 and 10,000 years ago, a baby was born in Europe with a harmless genetic mutation.
- 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.
May 16, 2024 · Blue eyes are an inherited trait. If you have blue eyes, it means the iris part of your eyes lacks melanin, so, technically, blue eyes don't have any color. They look blue because of how light is reflected. Having blue eyes has its advantages. They lower your risk of developing cataracts, for instance.
Sep 4, 2015 · This gradient gave rise to the 'vitamin D hypothesis', which is the idea that light coloured skin, hair and eyes co-evolved as humans moved into latitudes where shorter days and summers meant they ...
Jun 30, 2024 · Seriously. Blue eyes don’t exist. “Blue eye color is determined by melanin, and melanin is actually brown by nature,” explained licensed optometrist Gary Heiting in an article for eye care ...
Jun 16, 2023 · The front layer of the iris (called the stroma) can make eyes appear brown, hazel, blue or green. For people with brown eyes, some of the cells also have brown pigment in them. People with blue eyes have no pigment at all in this front layer, causing the fibers to scatter and absorb some of the longer wavelengths of light that come in.
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Feb 5, 2024 · When people have blue eyes, it means that they cannot produce brown nor green pigment in the iris. The pigment-forming genes that give the eye brown or green colours do not exist in a blue version. Therefore, blue eyes are actually not blue at all, but pigment-free and transparent.
