1. Rasch-Validated Italian Scale for Diagnosing Digital Eye Strain: The Computer Vision Syndrome Questionnaire IT©
- Author
-
Natalia Cantó-Sancho, Elena Ronda, Julio Cabrero-García, Stefano Casati, Angela Carta, Stefano Porru, Mar Seguí-Crespo, Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante. Departamento de Enfermería Comunitaria, Medicina Preventiva y Salud Pública e Historia de la Ciencia, Universidad de Alicante. Departamento de Enfermería, Salud Pública, and Calidad de Vida, Bienestar Psicológico y Salud
- Subjects
Psychometrics ,Computers ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,Reproducibility of Results ,Validation study ,Syndrome ,equipment and supplies ,fluids and secretions ,validation study ,Surveys and Questionnaires ,Medicina Preventiva y Salud Pública ,Quality of Life ,Humans ,Enfermería ,Asthenopia ,Surveys and questionnaires ,Rasch model ,asthenopia ,surveys and questionnaires ,psychometrics ,Óptica - Abstract
The use of digital devices affects eye health; this can influence the performance of workers. To assess this impact, validated patient-reported outcome questionnaires are needed. The purpose of this study was to validate the psychometric properties of the Italian version of the Computer Vision Syndrome Questionnaire (CVS-Q©) using Rasch analysis. Two hundred and forty-one Italian workers completed an ad hoc questionnaire on anamnesis and exposure to digital devices, and the Italian version of the CVS-Q©. Subsequently, a battery involving three clinical ocular surface and tear tests was performed. The reliability and validity of the scale was assessed using the Andrich Rating Scale Model, and the prevalence of computer vision syndrome (CVS) was calculated. A good fit of both items and persons to the predictions of the Rasch model was observed, with acceptable reliability, unidimensionality, and no or minimal severe differences as a function of gender or age; moreover, good test–retest repeatability, adequate values of sensitivity, reliability, and area under the curve, and adequate construct validity based on clinical tests were obtained. Workers with a questionnaire score ≥ 7 were found to present with CVS. The prevalence of CVS was 76.6%. The CVS-Q IT© is a valid and reliable scale to assess CVS in Italian workers who use digital devices.
- Published
- 2022