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Wordnet 3.0

NOUN (1)

1. (ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred;
[syn: myopia, nearsightedness, shortsightedness]


The Collaborative International Dictionary of English v.0.48:

Myopia \My*o"pi*a\, n. [NL. See Myope.] (Med.) Nearsightedness; shortsightedness; a condition of the eye in which the rays from distant object are brought to a focus before they reach the retina, and hence form an indistinct image; while the rays from very near objects are normally converged so as to produce a distinct image. It is corrected by the use of a concave lens. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

ametropia \am`e*tro"pi*a\ ([a^]m`[-e]*tr[=o]"p[i^]*[.a]), n. [Gr. 'a`metros irregular + 'w`ps, 'wpo`s, eye.] (Med.) A visual impairment resulting from faulty refraction of light rays in the eye. Subtypes include myopia astigmatism and hyperopia. -- Am`e*trop"ic ([a^]m`[-e]*tr[o^]p"[i^]k), a. AS [1913 Webster +PJC]
WordNet (r) 3.0 (2006):

myopia n 1: (ophthalmology) eyesight abnormality resulting from the eye's faulty refractive ability; distant objects appear blurred [syn: myopia, nearsightedness, shortsightedness] [ant: farsightedness, hypermetropia, hypermetropy, hyperopia, longsightedness]