Is partial heterochromia rare?
In sectoral heterochromia, sometimes referred to as partial heterochromia, areas of the same iris contain two completely different colors. It is unknown how rare sectoral heterochromia is in humans.
What percent of the world has partial heterochromia?
Heterochromia. Heterochromia — in which a person has more than one eye color — affects less than 1% of people. The two eyes might be completely different from one another, or one part of the iris might be different than the rest.
Which heterochromia is the rarest?
How rare is central heterochromia? Complete heterochromia is definitely rare — fewer than 200,000 Americans have the condition, according to the National Institutes of Health.
Can you have partial heterochromia?
In people with sectoral heterochromia, also known as partial heterochromia, one part of the iris is a different color from the rest. Sectoral heterochromia often resembles an irregular spot on the iris of the eye and does not form a ring around the pupil.
How rare is complete heterochromia?
Heterochromia is a rare condition, it only affects around 11 people in 1,000 in America. Beside central heterochromia, there are two additional types of the condition. What follows is more in-depth information on heterochromia causes.
Is heterochromia harmful?
The most common cause of heterochromia is a genetic mutation that results in an individual born with two differently colored eyes. This mutation is not usually harmful and, as mentioned, usually does not influence the quality of vision.
Is central heterochromia rare?
Central Heterochromia is a very rare condition affecting less than 1% people in the world. Due to this rarity of central heterochromia, the people with this disorder appear to be unique, and noticeable.
How common is heterochromia?
The condition is also known as heterochromia iridis or heterochromia iridum. Less than 200,000 people in the United States have heterochromia. Some types of heterochromia are common in dogs, cats, and horses. There are three main types of heterochromia of the eye. An ophthalmologist can diagnose heterochromia and investigate why it has occurred.