visual impairment

Từ điển WordNet v3.1 - WordNet Dictionary

noun

impairment of the sense of sight
• Syn:
visual defect, vision defect, visual disorder
• Hypernyms:
disability, disablement, handicap, impairment
• Hyponyms:
amaurosis, amblyopia, ametropia, aniseikonia, anorthopia,
aphakia, blindness, sightlessness, cecity, color blindness, colour blindness,
color vision deficiency, colour vision deficiency, diplopia, double vision, hemeralopia, day blindness,
hemianopia, hemianopsia, quadrantanopia, metamorphopsia, nyctalopia, night blindness,
moon blindness, photoretinitis, retinal detachment, detachment of the retina, detached retina, scotoma,
tunnel vision, xanthopsia