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| congenital cataract ： ウィキペディア英語版 |
congenital cataract
The term congenital cataract refers to a lens opacity present at birth. Congenital cataracts cover a broad spectrum of severity: whereas some lens opacities do not progress and are visually insignificant, others can produce profound visual impairment.
Congenital cataracts may be unilateral or bilateral. They can be classified by morphology, presumed or defined genetic etiology, presence of specific metabolic disorders, or associated ocular anomalies or systemic findings.〔
==Epidemiology==
* Congenital cataract are responsible for nearly 10% of all vision loss in children world wide.
* Congenital cataract are one of the most common treatable causes of visual impairment and blindness during infancy, with an estimated prevalence of 1 to 6 cases per 10,000 live births.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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