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