The goal of this clinical trial is to evaluate the performance of a photorefraction screener in terms of sensibility, sensitivity and accuracy on children aged 3 to 8 y.o. The main objectives of the study are:
* Evaluate the performances of the device in comparison with the gold standard, i.e. a tabletop refractometer. * Assess the agreement of the measures obtained with the device with those obtained with the gold standard.
Aged between 3-8 years when included in the study
All skin phototypes (I to VI according to the Fitzpatrick classification)
Wearing glasses or not
Capacity to give valid consent
Under myopia control solution that may have an impact on refractive error (such as: atropine, orthokeratology,..)
Wearing contact lenses
Ocular or systemic pathology that may have an impact on vision or may interfere with the study measures (except strabismus)
Under medication that may have an impact on vision or may interfere with study measurements