Table 2

Comparing the features of the Cardiff Visual Ability Questionnaire for Children (CVAQC) with the other three questionnaires

Age range (years)5–188–188–18Up to 7
Basis of items developmentFocus groups with children (VI and normally sighted)Focus groups with VI children, parents, teachers and support providersLiterature review and focus groups with VI children, parents and support providersClinical experience and literature review
Population most suited toChildren in developed countriesChildren in developing countries
Self reported/proxySelf-reportedNot publishedSelf-reportedProxy
Psychometric propertiesRasch analysisNot publishedRasch analysisRasch analysis not used
Concept being measuredVisual abilityVision related Quality of LifeVisual functionVision related Quality of Life
  • CVFQ, Children's Visual Function Questionnaire; IVI-C, Impact of Visual Impairment on Children; LVP-FVQ, LV Prasad-Functional Vision Questionnaire; VI, visually impaired.