Trait
Sunflower cataract
Sunflower cataract (SC) is a type of anterior subcapsular cataract almost only seen in Wilson disease, an autosomal-recessive condition with a defect in the metabolism of copper leading to accumulation of copper in the liver and basal ganglia. SC consists of a thin, centralized opacification that is located directly under the anterior capsule and encompasses between one-third and one-half of the anterior lens pole surface area. In all cases, the central opacification is surrounded by additional, secondary opacifications arranged in ray-like structures around it. This pattern is said to resemble a sunflower, with a large central disk surrounded by petals.
Summary
- Body system
- Abnormality of the eye
Reference genomeGRCh38hg38
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Changes in these genes cause rare conditions in which Sunflower cataract is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
| Gene | How often it is seen | Conditions |
|---|---|---|
| ATP7BATPase copper transporting beta | Rarely (1–4%) | In 2 conditions |
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
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