Validation of the Filipino translation of the impact of vision impairment for children (IVI_C) questionnaire among school children

ABSTRACT

Background@#Quality of life questionnaires provide valuable information in assessing the effects of health interventions and public health campaigns. In the Philippines, we only have a few validated questionnaires targeted specifically for children.@*Objective@#To translate to Filipino and validate the translated Impact of Vision Impairment for Children Questionnaire (IVI_C).@*Methods@#This is a translation and validation study of the IVI_C. The IVI_C was translated following international guidelines of forward–translation and back-translation methods. After completion of the Filipino IVI_C version, pretesting was performed on school-aged children 8 to 18 years old through convenience sampling in the outpatient department and Pediatric Ophthalmology and Motility Clinic at Sentro Oftalmologico Jose Rizal, Philippine General Hospital from January 1 to August 31, 2018.@*Results@#We included 130 participants in the study. The calculated Cronbach’s alpha coefficient of 0.88 for the translated Filipino version of the IVI_C suggested high reliability and internal consistency. Rasch analysis showed comparability of the Filipino translation to the original English version of the questionnaire.@*Conclusion@#Our study showed that the Filipino version of IVI_C questionnaire was of high reliability and validity.