instrument for testing vision

Phrontistery dictionary. 2013.

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  • Opsiometer — Op si*om e*ter, n. [Gr. ? sight + meter: cf. F. opsiom[ e]tre.] An instrument for measuring the limits of distinct vision in different individuals, and thus determiming the proper focal length of a lens for correcting imperfect sight. Brande & C …   The Collaborative International Dictionary of English

  • Opsiometer — Opsiometer, so v.w. Optometer …   Pierer's Universal-Lexikon

  • opsiometer — /op si omˈi tər/ noun An optometer ORIGIN: Gr opsis sight, and ↑ meter …   Useful english dictionary

  • opsiometer — op·si·om·e·ter (op″se omґə tər) optometer …   Medical dictionary

  • Optometer — (Opsiometer), eine Vorrichtung, um darnach die Sehweite eines Auges zu bestimmen; besteht meist aus einem verschiebbaren Blatte mit Druckschrift, auf einem nach Zollen eingetheilten Längenmaße. Es wird dann darnach, in welcher Weite noch eine… …   Pierer's Universal-Lexikon

  • optometer — An instrument for determining the refraction of the eye. [opto + G. metron, measure] objective o. SYN: refractometer. * * * op·tom·e·ter äp täm ət ər n an instrument for measuring the power and range of vision * * * n. an instrument for measuring …   Medical dictionary

  • opsiómetro — Eng. Opsiometer Ver optómetro …   Diccionario de oftalmología

  • Scientific Instruments — Have you ever been in the middle of a class lecture, medical examination or episode of Star Trek only to realise suddenly that you have no clue what all those gizmos, gadgets and other scientific instruments actually do? If so, your problems are… …   Phrontistery dictionary

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