{
  "url": "https://dantelabs.com/traits/sunflower-cataract",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "sunflower-cataract",
    "id": "HP:6000642",
    "name": "Sunflower cataract",
    "definition": "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.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-eye",
        "name": "Abnormality of the eye",
        "url": "https://dantelabs.com/traits/abnormality-of-the-eye"
      }
    ],
    "broader": [
      {
        "slug": "anterior-subcapsular-cataract",
        "name": "Anterior subcapsular cataract",
        "url": "https://dantelabs.com/traits/anterior-subcapsular-cataract"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "atp7b",
        "symbol": "ATP7B",
        "hgnc": "HGNC:870",
        "name": "ATPase copper transporting beta",
        "frequency": "very-rare",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/atp7b"
      }
    ]
  }
}