Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
astigmia | Yes | No | No | No |
astigmatic | No | Yes | No | No |
astigmia (noun) | astigmatic (noun) |
---|---|
(optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point | |
(ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people |
astigmia (adjective) | astigmatic (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 |