AMETROMETER
\ˌamɪtɹˈɒmɪtə], \ˌamɪtɹˈɒmɪtə], \ˌa_m_ɪ_t_ɹ_ˈɒ_m_ɪ_t_ə]\
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By William R. Warner
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An instrument for measuring ametropia; particularly, one in which the ametropia is estimated from the size and character of the diffusion circles.
By Alexander Duane
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Instrument for measuring degree of ametiopia.
By Willam Alexander Newman Dorland
