A MICROPROCESSOR‐DRIVEN ONE‐OPERATOR FORCED‐CHOICE PREFERENTIAL LOOKING APPARATUS

GLEN A. GOLE; DOUGLAS J. COSTER

doi:10.1111/j.1442-9071.1985.tb00417.x

A MICROPROCESSOR‐DRIVEN ONE‐OPERATOR FORCED‐CHOICE PREFERENTIAL LOOKING APPARATUS

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Abstract

Forced‐choice preferential looking (FPL) is a behavioural technique for the estimation of visual acuity in preverbal children. We have constructed an electromechanical FPL apparatus controlled by a microprocessor requiring just one operator. Sixty‐three babies aged between six weeks and eleven months were evaluated with an overall success rate of 83% in obtaining an acuity measurement. FPL is a practical method for measurement of infant visual acuity in the ophthalmic clinic setting.

Original language	English
Pages (from-to)	165-169
Number of pages	5
Journal	Australian and New Zealand Journal of Ophthalmology
Volume	13
Issue number	2
DOIs	https://doi.org/10.1111/j.1442-9071.1985.tb00417.x
Publication status	Published - May 1985

Keywords

Forced‐choice preferential looking
infant
visual acuity

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A MICROPROCESSOR‐DRIVEN ONE‐OPERATOR FORCED‐CHOICE PREFERENTIAL LOOKING APPARATUS

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