astigmatism vs keratoconus
keratoconus vs astigmatismastigmatism and keratoconus both are nouns.
| Word | Noun | Adjective | Verb | Adverb |
|---|---|---|---|---|
| astigmatism | Yes | No | No | No |
| keratoconus | Yes | No | No | No |
As nouns,
keratoconus is a hyponym of
astigmatism; that is, keratoconus is a
word with a more specific, narrower meaning than
astigmatism:
- astigmatism: (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
- keratoconus: abnormal cone-shaped protrusion of the cornea of the eye; can be treated by epikeratophakia
Other hyponyms of astigmatism include
keratectasia.
| astigmatism (noun) | keratoconus (noun) |
|---|---|
| (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point | abnormal cone-shaped protrusion of the cornea of the eye; can be treated by epikeratophakia |
| (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people |
Words related to "astigmatism"
Words related to "keratoconus"
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