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.
|Number of pages||5|
|Journal||Australian and New Zealand Journal of Ophthalmology|
|Publication status||Published - May 1985|
- Forced‐choice preferential looking
- visual acuity