AMETROPIA
\ˌamɪtɹˈə͡ʊpi͡ə], \ˌamɪtɹˈəʊpiə], \ˌa_m_ɪ_t_ɹ_ˈəʊ_p_iə]\
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Deviations from the average or standard indices of refraction of the eye through its dioptric or refractive apparatus.
By DataStellar Co., Ltd
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A condition in which there is some error of refraction in consequence of which parallel rays, with the eye at rest, are not focussed on the retina, but either in front of it (myopia) or behind it (hyperopia).
By Stedman, Thomas Lathrop
By William R. Warner
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Imperfection in the refractive powers of the eye.
By Willam Alexander Newman Dorland
Word of the day
Moslem Calendar
- lunar calendar used by Moslems; dates from 622 AD (Hegira); beginning of the Moslem retrogresses through solar year completing cycle every 32 years lunar calendar used by Muslims; dates from 622 AD (Hegira); beginning of the Muslim year retrogresses through solar completing cycle every 32 years