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ametropia

am·e·tro·pi·a [ àmmə trṓpee ə ]


noun 
Definition:
 
visual impairment: a condition such as myopia or astigmatism in which a refractive error prevents the eye from focusing light on the retina

[Mid-19th century. < Greek ametros "irregular" < metron (see meter3)]

am·e·trop·ic [ àmmə tróppik ] adjective
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