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 ?
a) In darkness, fixation being on the retinoscope light, using hand held lenses
b) A 'with' movement indicates the child is accommodating to a point between the retinoscope and the target
Lot No: 15 Lot title: or retinoscope retinoscope ophthalmic slit
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.
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.