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Blue eyes are predominant in northern and eastern Europe, particularly around the Baltic Sea. Blue eyes are also found in southern Europe, Central Asia, South Asia, North Africa and West Asia.
- Hair
A variety of human hair colors; from top left, clockwise:...
- Martin–Schultz Scale
The Martin–Schultz scale is a standard color scale commonly...
- Structural Color
The brilliant iridescent colors of the peacock's tail...
- Limbal Ring
Prominent limbal ring Light brown iris with a distinct...
- Hair
An optical effect called the Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective. Blue has been an important colour in art and decoration since ancient times.
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.
Blue-eyed black lemur female. Eye color is a visible character caused by two factors: the pigmentation of the eye 's iris, [1] [2] and way light is scattered as it hits the top layer of the iris. [3] The human eye is different from its nearest relative, the chimpanzee eye.
Feb 4, 2019 · There is no strong scientific consensus on eye colors. But for example, per 2019 review article at https://www.ncbi.nlm.nih.gov/pubmed/30639910 the colors listed in that review are blue, brown and intermediate. So one approach is to bundle the non brown and non blue into a single category called 'intermediate'.
Color blindness or color vision deficiency (CVD) is the decreased ability to see color or differences in color. The severity of color blindness ranges from mostly unnoticeable to full absence of color perception.
Dec 5, 2022 · Eye color is a polygenic phenotypic character and is determined by the amount and type of pigments in the eye's iris. Humans and other animals have many phenotypic variations in eye color, as blue, brown, gray, green and others. These variations constitute phenotypic traits.
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