Heterochromia: The Beauty of Multi-Colored Heterochromic Eyes

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Image: Xavier Nájera

One of the many fascinating variations that exist among humans (and other animals) is heterochromia iridis, or heterochromia iridum – terms used to describe different colored eyes in the same person. Caused by an excess or lack of melanin, heterochromia can occur as a result of genetics, disease or injury. Yet, whatever its underlying cause, heterochromia is almost always eye-catching!

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