For a long time, people believed Bowie had heterochromia, which means the eyes are different colours.
However, what Bowie actually had was anisocoria, which means one pupil is bigger than the other.
This means the iris, ie the part of your eye with a colour, cannot react to light in the same way as the other eye, so it looks as though that eye is darker than the other.
Bowie’s larger pupil was the result of an incident from his childhood, which took place at a school in Bromley in January 1962.
