The purpose of this pilot study was to establish typical accommodative responses at 1/3m in children to targets of varying complexity and visual / cognitive demand. This was a study of 18 children aged six to seven years and six children aged 10-11 years with well controlled heterophoria or orthophoria. Children were assessed with remote haploscope using seven different targets of differing text size, visual search task and spatial frequencies. The smallest size text elicited the highest mean accommodative response. Text had greater response than pictures. Children appear to accommodate only as much as necessary to resolve the target. Variable responses between children to all targets were found but with less variance for the smallest text.

Children’s accommodation to a variety of targets – a pilot study.
Ludden SM, Horwood AM, Riddell PM.
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Fiona Rowe (Prof)

Institute of Population Health, University of Liverpool, UK.

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