focimeter


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Related to focimeter: Lensometer

lens·om·e·ter

(lenz-om'ĕ-tĕr),
An instrument to measure the power and cylindric axis of a spectacle lens.
Synonym(s): focimeter, vertometer
[lens + G. metron, measure]

focimeter

An optical instrument for determining the vertex power, axis direction and optical centre of an ophthalmic lens (Fig. F8). The instrument can be either manual or automated. Syn. Lensometer (a tradename); vertexometer; Vertometer (a tradename). See lens measure; neutralization; back vertex power.
Fig. F8 Focimeter (Shin Nippon)enlarge picture
Fig. F8 Focimeter (Shin Nippon)
References in periodicals archive ?
To measure this, mark the second lens at the ordered centration distance, place them back onto the focimeter with this mark centred and read the power
Ask the patient if they have any other spectacles in addition to the pair about to be checked (eg, reading spectacles, sunglasses, a spare pair, or a newer pair they can't wear) and be sure to focimeter all of these.
The focimeter can be used to discover the powers of the cleaned RGP lenses and the results compared to those noted in the records.
After developing this first instrument, the academic support officer went onto build, amongst other things, a progressive lens measurement machine that he patented, and a scanning focimeter which second-year optometry students at Aston University use today.