An adaptation and reliability study of the Flemish CVI Questionnaire for the screening of cerebral visual impairment in preschool-age children with cerebral palsy.

Introduction: This study aimed to adapt the Flemish CVI Questionnaire (FCVIQ) Turkish form for screening cerebral visual impairment (CVI) in preschool-age children with cerebral palsy (CP). Additionally, it sought to explore the relationship between FCVIQ scores and visual abilities. Method: The study involved 137 preschool-age children. The FCVIQ's test-retest reliability and construct validity were assessed, and its components were identified through factor analysis. Logistic regression analyzed the FCVIQ's predictive power for Visual Function Classification System (VFCS) levels. Receiver Operating Characteristic (ROC) curves determined optimal cut-off values. Results: The FCVIQ demonstrated strong test-retest reliability and revealed three components. The first component showed a strong positive correlation with VFCS levels. ROC analysis yielded optimal cut-off values for scoring methods, indicating the FCVIQ's robust predictive performance. Conclusion: This study identifies distinct characteristics of CVI cases in children with CP and highlights the FCVIQ's reliability and three-component structure. Occupational therapists can effectively use the FCVIQ, with the Multifaceted Visual Processing and Perception Component being particularly important for CVI assessment. These findings hold promise for improving habilitation practice and guiding future research in CVI management and interventions.