refraction

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Synonyms for refraction

the change in direction of a propagating wave (light or sound) when passing from one medium to another

the amount by which a propagating wave is bent

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References in periodicals archive ?
Epidemiologic study of ocular refraction among schoolchildren in Taiwan in 1995.
Hou, 'Epidemiologic study of ocular refraction among schoolchildren in Taiwan in 1995', Optometry and Vision Science, vol.
Terminology Explanation Spectacle refraction The spherical and cylindrical combination required, at a stated vertex distance, to correct the patient's ametropia Ocular refraction The spectacle refraction adjusted by compensating for the back vertex distance (BVD) Spectacle astigmatism Can occur either from corneal and/or lenticular astigmatism.
Broadly speaking, there are four subcategories when comparing ocular refraction to the 'K' readings, namely:
Here, the corneal astigmatism corresponds to the ocular refraction, therefore, spherical RGP lenses would provide a suitable option.