Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun astigmia

2 senses of astigmia

Sense 1
astigmatism, astigmia -- ((ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people)
       => ametropia -- ((ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia)

Sense 2
astigmatism, astigmia -- ((optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point)
       => condition, status -- (a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations")