 astigmatism |
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| 1. | [ noun ] (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea | |
| Synonyms: | astigmia | |
| Related terms: | ametropia keratoconus keratectasia ophthalmology | |
| 2. | [ noun ] (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point | |
| Synonyms: | astigmia | |
| Related terms: | stigmatism condition optics | |
| Similar spelling: |
astigmatic astigmia |
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