People with Heterochromia don’t need expensive contacts to change their eye color. They were born that way. Though sometimes too subtle to be noticed by the non-clinician, this condition shows up in about 11 of 1,000 Americans. Iris color develops in first few months of life, when melanin levels determine how dark eyes will become.
Heterchromia has its own holiday!
In Complete Heterochromia, each eye is a distinctly different color. The telltale signs of this eye condition are a mix of colors, such as a blue iris with a golden-brown ring around the pupil, in the same eye.
While having different color eyes in itself is benign, it’s also present in a number of diseases and injuries, such as Bloch–Sulzberger syndrome, pooled blood in the anterior chamber, or brain injury.
Heterochromia also makes other eye conditions jealous, because it has its own holiday, Different Colored Eyes Day, July 12.