A lensometer is an instrument used to measure the power of an existing lens. An optician uses a lensometer to determine the prescription of a patient's eyeglasses.
Lensometer
By Troy Bedinghaus, O.D., About.com Guide
Updated June 21, 2007
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
A lensometer determines the prescription of a pair of eyeglasses.
Troy Bedinghaus
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