Imagine seeing someone with odd-colored eyes: blue on one side, brown on the other ... iris pigmentation that causes the eyes to have different colors (odd eyes), either between the two eyes ...

“Heterochromia is when a person’s irises are different colors,” explains Sidney Gicheru ... or about 6.4 billion people, have brown eyes—by far the most common eye color on the planet.

Someone with central heterochromia has different colors within the same eye ... Blue eyes have small amounts of melanin while brown eyes are rich in melanin. Iris color may not stay constant ...

There are four main eye colors in the human population. These are brown, blue ... Some people have two different colored eyes. This is a condition called heterochromia. To understand why ...

What Makes Eyes Different Colors? ‌The colored part of the eye ... the stroma and is responsible for the blue, green, hazel, or brown shade of your eyes. The back layer has a brown pigment.‌ ...