Why do some people have two differently colored eyes?

Sometimes, a person’s melanin pigment doesn’t spread evenly to each iris. Which can lead to one eye being darker than the other or even splashes of color in each iris? This extremely rare condition – known as heterochromia – doesn’t affect a person’s vision.

Heterochromia can be either present from birth (congenital) or acquired. Most people will have someone else in their family with the same condition, although if it develops at an early age it’s still considered to be congenital.

Acquired heterochromia can occur either from injury or illness, but won’t be the cause of any difficulty with vision. If any parts of your iris does change colour make sure you visit an ophthalmologist, just to be on the safe side.

Your eye colour is set by a variety of genes, but heterochromia occurs due to the concentration and distribution of a pigment called melanin. Melanin is also important in determining what colour skin you have and is found in your hair too.

It’s known that blue eyes contain the lowest amount of melanin, whereas brown eyes have the most, and so heterochromia is caused from one eye having either considerably more or considerably less melanin than the other.


Picture Credit : Google