When the sclera (the whites of the eyes) are different colors in each eye. For example, the irises would be the same color, but one eye would have white sclera while the other has black sclera.

[[Kaneki Ken]] from [[Tokyo Ghoul]] is well known for this.

h4.See also
* [[Heterochromia]]
* [[Mismatched pupils]]
* [[Tag group:eyes tags]]