what do you call a person with two different eye colors
Heterochromia iridum Heterochromia of the eye (heterochromia iridum or heterochromia iridis) is of three kinds. In complete heterochromia, one iris is a different color from the other. In segmental heterochromia or sectoral heterochromia, part of one iris is a different color from its remainder and finally in central heterochromia there are spikes of different colors radiating from the pupil.
Sclera The sclera,[help 1] also known as the white of the eye, is the opaque, fibrous, protective, outer layer of the human eye containing mainly collagen and some elastic fiber.[2] In humans, the whole sclera is white, contrasting with the coloured iris, but in other mammals the visible part of the sclera matches the colour of the iris, so the white part does not normally show. In the development of the embryo, the sclera is derived from the neural crest.[3] In children, it is thinner and shows some of the underlying pigment, appearing slightly blue. In the elderly, fatty deposits on the sclera can make it appear slightly yellow. Many people with dark skin have naturally darkened sclerae, the result of melanin pigmentation.