About National Different Colored Eyes Day
Heterochromia of the eye is called heterochromia iridum or heterochromia iridis. It can be complete or sectoral. In complete heterochromia, one iris is a different color from the other. In sectoral heterochromia, part of one iris is a different color from its remainder.
One example of a famous person who had different colored eyes is David Bowie. In fact, he didn't have heterochromia - his unique eyes were the result of a jealous fight with a friend over a girl they both liked. A clumsy punch to the eye resulted in the paralysis of the muscle that contracts the iris. His pupil, which was fully dilated at the time, was unable to change size. This meant that whenever his other eye had a contracted pupil, the difference in colour created an intriguing effect. Named anisocoria, this condition came to be seen as a blessing by Bowie himself, who admitted that the odd feature added “a kind of mystique” that became synonymous with his iconic appearance.