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DESCRIPTION: Abnormal smallness of one or both eyes; congenital, and almost always hereditary (usually recessive, but may also be dominant). Other ocular abnormalities also occur, including cataract, glaucoma, aniridia, and coloboma. Systemic and anatomic abnormalities also often occur; these include: polydactyly, syndactyly, clubfoot, polycystic kidneys, cystic liver, cleft palate, and meningoencephalocele. Deficient vision is the rule.

TREATMENT: Lens correction for refractive errors, often tinted; lighting according to needs, to control glare.

IMPLICATIONS: Genetic counseling is indicated.

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