While central heterochromia involves only the inner rings around the pupils, some people have what’s known as segmental heterochromia. While segmental and central heterochromia share some overlap in traits, segmental heterochromia can be more noticeable, as it often appears as a larger splotch on the iris of either one or both eyes (via Healthline). According to Good Housekeeping, “Vampire Academy” film star Dominic Sherwood possesses this rare eye feature, along with actor Bill Pullman, whose stunningly long list of credits includes fan favorites such as “Casper,” “Independence Day,” and “Spaceballs.”
The rarest of the rare, however, is complete heterochromia, which can be found in a mere 6 out of every 10,000 people in the U.S., reports All About Vision. Central heterochromia and segmental heterochromia affect only portions of the iris, but those with complete heterochromia have two eyes of completely different colors. Actress Mila Kunis has a more mild case of this super-duper rare eye feature, but baseball pitcher Max Scherzer’s complete heterochromia is clear as day, with one eye a noticeably light blue, almost gray color, and the other a deep, dark brown. Actor Dan Aykroyd told the Daily Mail back in 2013 that he, too, has complete heterochromia and was born with one green eye and one blue eye.
