Heterochromia can be present at birth (congenital) or acquired. The incidence of congenital heterochromia of the iris is about six in 1,000, although in most of these cases it is barely noticeable and is not associated with any other abnormality.
Is partial heterochromia rare?
In sectoral heterochromia, sometimes called partial heterochromia, areas of the same iris contain two completely different colors. It is not known how rare sectoral heterochromia is in humans.
Can you have partial heterochromia?
In people with sectoral heterochromia, also called partial heterochromia, part of the iris is a different color than the rest. Sectoral heterochromia often looks like an irregular patch on the eye’s iris and does not form a ring around the pupil.
What percent of the world has partial heterochromia?
Heterochromia – where a person has more than one eye color – affects less than 1% of people. The two eyes can be completely different, or part of the iris can be different from the rest. 25
How do you get partial heterochromia?
Some underlying conditions that can cause a form of heterochromia include Horner’s disease, Bourneville’s disease, piebaldism, and more. Partial heterochromia can be acquired later in life due to injury, uveitis, and certain glaucoma medications.
How common is partial heterochromia?
How rare is heterochromia iridis? Heterochromia can be present at birth (congenital) or acquired. The incidence of congenital heterochromia of the iris is about six in 1,000, although in most of these cases it is barely noticeable and is not associated with any other abnormality.
Is partial heterochromia bad?
This mutation is not usually harmful and, as mentioned, does not usually affect the quality of vision. Some versions of congenital heterochromia can be associated with rare conditions such as Waardenburg syndrome, although these are less common.
Can you have partial heterochromia?
In people with sectoral heterochromia, also called partial heterochromia, part of the iris is a different color than the rest. Sectoral heterochromia often looks like an irregular patch on the eye’s iris and does not form a ring around the pupil.
Is sectoral heterochromia rare?
Although rare, sectoral heterochromia can sometimes be hereditary. If parents pass on different colored eyes to their children, this is often due to the so-called Waardenburg syndrome.