Isolated optic nerve hypoplasia
ORPHA:637061疾病暂无中文名
定义 英文原文（暂无中文）
A rare developmental defect during embryogenesis characterized by underdevelopment of the optic nerve with a subnormal number of optic nerve axons. The condition may be unilateral or bilateral and can occur as an isolated defect or accompany other ocular or cerebral abnormalities. Funduscopic examination reveals a small optic disc, often associated with the ''double-ring'' sign, a ring of hypo- or hyperpigmentation surrounding the disc. Clinically, vision may be severely impaired or remain unaffected.
基本事实
- 遗传方式
- 常染色体显性、常染色体隐性
- 患病率
- <1 / 1 000 000
外部标识与链接
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本页数据来源
- 疾病定义、同义词、基因、表型、流行病学：Orphanet（CC BY 4.0）
- 中文病名：Orphanet 中文包，冻结于 2020-06-01；本条目在该版本中无中文名
- 表型中文标签：HPO 简体中文翻译（CHPO 上游成果）