Generally, a condition in which a person have each eyes in a different color.
This tag usually refers to complete heterochromia (both irises have a different coloration). Though, subjects with partial heterochromia (part of one iris has a different color from its remainder) can also be tagged.
Generally, include any eye-color tags for each instance.
use the tag multicolored_eyes when there is two or more color in the same eyes
example of character using the heterochromia tag :