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Vertometer
Vertometer, Lensmeter, Lensometer
An ophthalmic bench instrument used to measure diopter power of a lens.
What's the difference?
A Lensmeter, or Lensometer is a general dispensory tool for opticians to verify spectable prescriptions at the laborartory.
A Vertometer is a more precision instrument used to locate, mark, and index a lens optical center for edging, mounting, and construction of a spectacle prescription.
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StationNT5Bmedia 19:07, 1 July 2007 (UTC)
Also see
Aspheric lens Diopter Lens clock