Why Are Some People Different Colors?

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Medical Video: Why Do We Have Different Skin, Hair and Eye Color?

Heterochromia is a color difference in the two iris of the human eye. Sa person who has two different colored eyes is very rare, in America alone this occurs in only 11 out of every 1,000 people. This usually occurs due to several factors, and can actually develop over time.

What is heterochromia?

First, all you have to know is that the color of the human eye is determined by the part of the eye called iris. The color of the human eye iris is generally not all the same, some are light brown, blue, green, and black. This color depends on the amount of melanin (produced by melanocyte cells) in the pigment epithelium located at the back of the iris, the amount of melanin in the stroma (iris layer), and cell density in the stroma.

Heterochromia is also interpreted as a common feature of hereditary genetic disorders. For example Wardenburg syndrome, which causes children to experience hearing loss, and gray hair at a young age. Heterochromia eye disorders are divided into 2 types, namely:

1. Complete Heterochromia

This type of heterochromia is a condition in which one eye has a different color from the one next to it, so the difference in pigment is complete in one eye compared to the other eye.

2. Partial heterochromia

This type of heterochromia, is a type of eye color difference that lies in one eye, so in one eye there are several types of colors. This type is divided into central and sectoral. Central heterochromia is the difference in color in the middle of the eye. While in the sectoral type, eye color differences will be seen in one local segment.

What causes heterochromia eye abnormalities?

If the color of your eyes changes to a different color (not from birth), talk to your eye doctor or regular doctor to determine whether this is caused by certain diseases such as:

  • Eye trauma. This eye condition is caused by an eye injury that can be caused by a blow, sport or activity that injures your eyes.
  • Glaucoma. This condition is an abnormality in the eye which causes a buildup of fluid in the eye and finally the color of the iris becomes different. This can basically cause vision loss, but if detected early and take the right treatment, you can still prevent it.
  • Are taking certain medications. Some drugs, including some glaucoma drugs that reduce pressure in your eyes, can cause eye discoloration.
  • Neuroblastoma is a cancer of nerve cells that usually attacks children under the age of 10. When tumors suppress nerves in the chest or neck, sometimes children have drooping eyelids and small pupils, causing heterochromic eye conditions.
  • Eye cancer. Melanoma can affect different eye colors, but it rarely happens. It occurs in melanin which gives eye pigment (and hair and skin) the color. One sign of eye melanoma is the dark spot on the iris.

Is there a way to cure heterochromia eyes?

Until now there is no specific medical method that can cure this eye disorder. Treatment can be done depending on the cause and condition of the factors underlying the change in color in your eyes. In certain situations, colored contact lenses can be used to adjust the color of the eyes that appear brighter or lighten eyes that appear darker. Two different colored contact lenses can also be used to match the color of the iris.

Why Are Some People Different Colors?
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