Impact of confidence number on the screening accuracy of the Retinomax autorefractor
To assess the impact of Retinomax reading confidence number on screening and to determine whether repeated testing to achieve a higher confidence number improves screening accuracy in preschool children.
Reproducibility and accuracy of measurements with a hand held autorefractor in children
To determine reproducibility and
accuracy of the Retinomax autorefractor when used with children who were made cycloplegic.
Comparison of the Retinomax hand-held autorefractor
versus table-top autorefractor and retinoscopy
To compare noncycloplegic and cycloplegic results of Retinomax measurements with findings
achieved after cycloplegia using table-top autorefractor
and retinoscopy.