{
  "id": 6600,
  "label": "pathologic nystagmus",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0004843",
  "properties": {
    "xrefs": [
      "DOID:9650",
      "ICD9:379.50",
      "MEDGEN:45166",
      "MESH:D009759",
      "UMLS:C0028738"
    ],
    "categories": [
      {
        "ref": "MONDO:0005071",
        "name": "nervous system disorder"
      }
    ],
    "definition": "Involuntary movements of the eyeballs. The presence or absence of nystagmus is often used in the diagnosis of a variety of neurological and visual disorders."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 3,
  "parents": [
    {
      "id": 3785,
      "label": "ocular motility disease",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        5469
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:1279",
          "EFO:1001990",
          "ICD9:378.9",
          "MEDGEN:14457",
          "SCTID:45030009",
          "UMLS:C0028850"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ]
      },
      "child_count": 6,
      "reference_id": "MONDO:0001584"
    }
  ],
  "children": [
    {
      "id": 3584,
      "label": "spontaneous ocular nystagmus",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        6600
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:11771",
          "ICD10CM:H55.03",
          "ICD9:379.53",
          "MEDGEN:75748",
          "SCTID:45339001",
          "UMLS:C0271384"
        ],
        "synonyms": [
          "visual deprivation nystagmus"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "Involuntary movements of the eye that are divided into two types, jerk and pendular. Jerk nystagmus has a slow phase in one direction followed by a corrective fast phase in the opposite direction, and is usually caused by central or peripheral vestibular dysfunction. Pendular nystagmus features oscillations that are of equal velocity in both directions and this condition is often associated with visual loss early in life. (Adams et al., Principles of Neurology, 6th ed, p272)"
      },
      "child_count": 0,
      "reference_id": "MONDO:0001361"
    },
    {
      "id": 3851,
      "label": "dissociated nystagmus",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        6600
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:13174",
          "ICD10CM:H55.04",
          "ICD9:379.55",
          "MEDGEN:56362",
          "SCTID:9520006",
          "UMLS:C0155380",
          "icd11.foundation:50035755"
        ],
        "synonyms": [
          "dissociated nystagmus"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ]
      },
      "child_count": 0,
      "reference_id": "MONDO:0001655"
    },
    {
      "id": 7341,
      "label": "congenital nystagmus",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4427,
        6600,
        24270
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:9649",
          "EFO:0007217",
          "HP:0000639",
          "ICD10CM:H55.01",
          "ICD9:379.51",
          "MEDGEN:195995",
          "MESH:D020417",
          "OMIMPS:310700",
          "Orphanet:651",
          "SCTID:64635004",
          "UMLS:C0700501",
          "icd11.foundation:1626567380"
        ],
        "synonyms": [
          "nystagmus",
          "congenital idiopathic nystagmus",
          "congenital pathologic nystagmus",
          "motor congenital nystagmus",
          "nystagmus, congenital"
        ],
        "categories": [
          {
            "ref": "MONDO:0005071",
            "name": "nervous system disorder"
          }
        ],
        "definition": "Nystagmus present at birth or caused by lesions sustained in utero or at the time of birth. It is usually pendular, and is associated with albinism and conditions characterized by early loss of central vision. Inheritance patterns may be X-linked, autosomal dominant, or recessive. (Adams et al., Principles of Neurology, 6th ed, p275)"
      },
      "child_count": 30,
      "reference_id": "MONDO:0005712"
    }
  ],
  "roots": [
    {
      "id": 3785,
      "label": "ocular motility disease"
    }
  ]
}