{
  "url": "https://dantelabs.com/traits/hemeralopia",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "hemeralopia",
    "id": "HP:0012047",
    "name": "Day blindness",
    "label": "Hemeralopia",
    "definition": "A visual defect characterized by the inability to see as clearly in bright light as in dim light. The word hemeralopia literally means day blindness.",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-eye",
        "name": "Abnormality of the eye",
        "url": "https://dantelabs.com/traits/abnormality-of-the-eye"
      }
    ],
    "broader": [
      {
        "slug": "abnormality-of-vision",
        "name": "Abnormality of vision",
        "url": "https://dantelabs.com/traits/abnormality-of-vision"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "cnga3",
        "symbol": "CNGA3",
        "hgnc": "HGNC:2150",
        "name": "cyclic nucleotide gated channel subunit alpha 3",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cnga3"
      },
      {
        "slug": "sco2",
        "symbol": "SCO2",
        "hgnc": "HGNC:10604",
        "name": "synthesis of cytochrome C oxidase 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/sco2"
      },
      {
        "slug": "tulp1",
        "symbol": "TULP1",
        "hgnc": "HGNC:12423",
        "name": "TUB like protein 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tulp1"
      },
      {
        "slug": "cep78",
        "symbol": "CEP78",
        "hgnc": "HGNC:25740",
        "name": "centrosomal protein 78",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/cep78"
      },
      {
        "slug": "ift172",
        "symbol": "IFT172",
        "hgnc": "HGNC:30391",
        "name": "intraflagellar transport 172",
        "frequency": "frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/ift172"
      },
      {
        "slug": "atxn7",
        "symbol": "ATXN7",
        "hgnc": "HGNC:10560",
        "name": "ataxin 7",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/atxn7"
      },
      {
        "slug": "grm6",
        "symbol": "GRM6",
        "hgnc": "HGNC:4598",
        "name": "glutamate metabotropic receptor 6",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/grm6"
      },
      {
        "slug": "gucy2d",
        "symbol": "GUCY2D",
        "hgnc": "HGNC:4689",
        "name": "guanylate cyclase 2D, retinal",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/gucy2d"
      },
      {
        "slug": "nr2e3",
        "symbol": "NR2E3",
        "hgnc": "HGNC:7974",
        "name": "nuclear receptor subfamily 2 group E member 3",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nr2e3"
      },
      {
        "slug": "nyx",
        "symbol": "NYX",
        "hgnc": "HGNC:8082",
        "name": "nyctalopin",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nyx"
      }
    ]
  }
}