2024 Volume 3 Article ID: 2024_007_OA
Aim: To verify the reliability and validity of the Japanese version of the Functional Vision Screening Questionnaire (J-FVSQ). This instrument was originally developed in the U.S. for identifying older people with vision impairment and their potential needs for vision impairment-relating services. Methods: This is a single-institution cross-sectional study. Participants were adults with and without vision impairment. The survey included the following items: demographic data, Functional vision score (FVS; objective evaluation for vision function, comprising of visual acuity and visual field function), and J-FVSQ. The Cronbach's alpha and intra-class correlation coefficients (ICC) were examined for reliability. The convergent validity and known-group validity were verified based on the correlations between J-FVSQ and FVS, and comparing the J-FVSQ between people with and without vision impairments, respectively. Results: This study included 38 adults with vision impairments (mean age, 56 years) and 44 adults without vision impairments (mean age, 46 years). The Cronbach's alpha and ICC were 0.91 and 0.96 (p < 0.001), respectively. The Spearman's rank correlation coefficient between J-FVSQ and FVS was -0.66 (p < 0.01). The adults with vision impairment showed significantly higher J-FVSQ scores than those without vision impairment (34 vs 15 points). Conclusion: The J-FVSQ is a reliable and valid screening tool.
