astigmatism 1
noundomain: state
Princeton WordNet [ver.3.1]
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EnglishDefinition
(ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
Hypernym
ametropia 1
noun
(ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia
Domain_of_synset_-_TOPIC
ophthalmology 1
noun
the branch of medicine concerned with the eye and its diseases
EnglishDerivationally related form
astigmatic 1
adjective
of or relating to a defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images
Hyponym
keratectasia 1
noun
abnormal bulging of the cornea of the eye
keratoconus 1
noun
abnormal cone-shaped protrusion of the cornea of the eye; can be treated by epikeratophakia
Member_of_this_domain_-_TOPIC
ophthalmology 1
noun
the branch of medicine concerned with the eye and its diseases
