Hazel eyes are one of the least understood eye colors. What color - TopicsExpress



          

Hazel eyes are one of the least understood eye colors. What color are hazel eyes? This color is semi-rare and is a combination of several other colors including green and brown. Hazel eyes have less melanin than brown eyes, but more than blue eyes. This eye color can be difficult to define since there is often substantial variation in this eye color. Hazel eyes often appear to shift in color from brown to green. People with this eye color often have a multicolored iris with one color being found close to the pupil and a different color found around the edges. One study indicates that 74% of hazel eyes have a brown ring around the pupil. Hazel eyes are a combination of Rayleigh scattering, the principle that makes the sky and blue eyes appear blue, and melanin, the pigment that makes brown eyes brown. Hazel eyes are really difficult to define. What is considered hazel? When does hazel become brown or green? Eye color is currently divided in to four main categories: brown, blue, green and hazel. However, to accurately define eye color there would need to be many more classifications. No one really knows what makes hazel eyes. Some researchers guess that hazel is simply a combination of brown and green eyes. Others guess that there may be modifier genes that cause the eye to make more or less melanin. Hazel eyes are one of the least understood eye colors. Researchers have a basic understanding of where brown, blue and green eyes come from genetically, but hazel eyes are a lot harder to understand and are much more complex.
Posted on: Fri, 08 Aug 2014 05:46:41 +0000

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