Sunflower eyes are a rare eye color characterized by a ring of yellow around the pupil and a lack of melanin in the iris. This eye color is caused by a mutation in the OCA2 gene, which is responsible for the production of the melanin pigment.

Here are some of the rarest eye colors and how they happen. Read on to find out about numerous rare eye colors. Pictured above is a close-up of a hazel eye, a color that is rarer than you might think. What Determines the Color of Your Eyes? Many people will argue that the color of your eyes is purely genetic, which is true for the most part.

2024年7月1日 · Central heterochromia describes the location of the pigment change in heterochromia, a term for having different eye colors. There are two forms of heterochromia: Congenital heterochromia: Some...

Central heterochromia is when the inner ring of the iris — the eye color closest to your pupil — is a different color than the outer ring, along the edge of your iris. This trait usually involves both eyes, with two separate colors appearing in each eye instead of one.

Heterochromia of the eye is called heterochromia iridum or heterochromia iridis. It can be complete, sectoral, or central. 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.

2024年4月8日 · Sunflower eyes, or the dark circles at the center of a sunflower’s petals, are shaped by at least 16 genes. Brown eyes have the highest amount of melanin pigment, while central heterochromia, also known as The Sunflower Eye, …

2024年9月24日 · Central heterochromia is when one eye contains multiple pigments. It can cause a color abnormality that stems from the pupil at the center of the eyes, like cat eyes. An uneven distribution of melanin in your iris can cause this condition. The …

2024年2月23日 · A prominent symptom of Wilson's disease is "sunflower eyes" or sunflower cataracts. These appear in the eyes as a multicolored center with spokes coming out of it.

2016年4月21日 · When Wilson Disease has led to neurological involvement, most people will have deposits of copper visible in their eyes. These rings are brown to greenish-gold and are known as Kayser-Fleischer Rings. Sometimes they can be seen by an opthamologist directly, but they are easier to detect using a slit lamp.

2021年7月19日 · In short, the difference between hazel eyes and those with central heterochromia lies in how the melanin is dispersed. Hazel eyes can appear to be two different colors, but they blend together at some point, where central heterochromia has two very distinct rings of color within the iris.