30. Sectoral Heterochromia
Sectoral heterochromia is a congenital anomaly that can impact either one or both of the eyes. It can be recognized by the presence of two distinct shades in the iris (the colored area of the eye). The exact source of this state is not understood, though it could be linked to genetics or some other fundamental sickness. As the name suggests, heterochromia is a divergence in the color of the iris and the material next to it.
