allowance

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Related to retinoscope: retinoscopy

Allowance

allowance

An accounting term used to describe entries on a profit and loss statement for expenses that might become necessary in the future. Examples include an allowance for bad debt, in which a certain percentage of income is deducted because of the likelihood it will be uncollectible.

References in periodicals archive ?
4) In this case, the stimulus is the dimmed light source of the retinoscope in a darkened room.
Begin with the retinoscope alongside the target, with the child telling you about the picture (or with the parent pointing to the picture to hold attention).
A normal red retinal reflex is observed when a beam of light is focused through the pupil using an ophthalmoscope or retinoscope.
My favourite sunglasses are Serengetti, Optical frames are Delim frames (with the interchangeable temples), contacts right now are Purevision 2 HD, Ophthalmoscope/ Retinoscope I'm partial to Welch Allyn.
This should be just long enough for a "sweep" of the retinoscope to see if the reflex is now neutralised, and the procedure is repeated using different lenses until the reflex is neutralised.
Medical Colleges in the State of Punjab-Streak Retinoscope
The instrument demonstrated is a retinoscope which, in contrast to an ophthalmoscope--presumably that's what it was thought to be--cannot be used at such short range.
Limited Tenders are invited for Ophthalmic Refractory System Wall Mounted With Ophthalmoscope And Streak Retinoscope With Rechargable Nickel Cadmium Battery 3.