ametropia

Từ điển WordNet v3.1 - WordNet Dictionary

noun

(ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia
• Derivationally related forms:
ametropic
• Topics:
ophthalmology
• Hypernyms:
visual impairment, visual defect, vision defect, visual disorder
• Hyponyms:
myopia, nearsightedness, shortsightedness, astigmatism, astigmia,
hyperopia, hypermetropia, hypermetropy, farsightedness, longsightedness