Opsiometer
Opsiometer
Op`si*om"e*ter\, n. [Gr. ? sight + -meter: cf. F. opsiom[`e]tre.] An instrument for measuring the limits of distincts vision in different individuals, and thus determiming the proper focal length of a lens for correcting imperfect sight. --Brande & C.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Opsiometer
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