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astigmia

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.astigmia - (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
astigmatism
ophthalmology - the branch of medicine concerned with the eye and its diseases
ametropia - (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia
keratectasia - abnormal bulging of the cornea of the eye
keratoconus - abnormal cone-shaped protrusion of the cornea of the eye; can be treated by epikeratophakia
2.astigmia - (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
astigmatism
optics - the branch of physics that studies the physical properties of light
condition, status - a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations"


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