vision defect
English Thesaurus
1. impairment of the sense of sight (noun.state)
hyponym | : | amaurosis, |
definition | : | partial or total loss of sight without pathology of the eye; caused by disease of optic nerve or retina or brain (noun.state) |
hyponym | : | amblyopia, |
definition | : | visual impairment without apparent organic pathology (noun.state) |
hyponym | : | ametropia, |
definition | : | (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia (noun.state) |
hyponym | : | aniseikonia, |
definition | : | visual defect in which the shape and size of an ocular image differ in the two eyes (noun.state) |
hyponym | : | anorthopia, |
definition | : | distorted vision in which straight lines appear curved (noun.state) |
hyponym | : | aphakia, |
definition | : | absence of the natural lens of the eye (usually resulting from the removal of cataracts) (noun.state) |
hyponym | : | diplopia, double vision, |
definition | : | visual impairment in which an object is seen as two objects (noun.state) |
hyponym | : | hemianopia, hemianopsia, |
definition | : | blindness in one half of the visual field of one or both eyes (noun.state) |
hyponym | : | quadrantanopia, |
definition | : | blindness in one fourth of the visual field (noun.state) |
hyponym | : | metamorphopsia, |
definition | : | a defect of vision in which objects appear to be distorted; usually due to a defect in the retina (noun.state) |
hyponym | : | photoretinitis, |
definition | : | damage to the retina resulting from exposure of the eye to the sun without adequate protection (noun.state) |
hyponym | : | scotoma, |
definition | : | an isolated area of diminished vision within the visual field (noun.state) |
hyponym | : | tunnel vision, |
definition | : | visual impairment involving a loss of peripheral vision (noun.state) |
hyponym | : | xanthopsia, |
definition | : | visual defect in which objects appear to have a yellowish hue; sometimes occurs in cases of jaundice (noun.state) |
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