C. W. Chan|David T. Wong|Cindy Lo Kuen Lam|SM McGhee|Wico W. Lai
Development of a Chinese version of the National Eye Institute Visual Function Questionnaire (CHI-VFQ-25) as a tool to study patients with eye diseases in Hong Kong
Hong Kong Eye Hospital|University of Hong Kong|Hong Kong Eye Hospital|University of Hong Kong|University of Hong Kong|University of Hong Kong|University of Hong Kong|Cyberport
develop chinese version national eye institute visual function questionnaire chivfq25 test reliability validity group patients eye diseases hong kongthe national eye institute visual function questionnaire neivfq translated chinese patients recruited hong kong demographic data visual acuity documented psychometric properties chivfq25 including internal consistency testretest reliability itemscale correlations construct validity tested250 patients recruited mean age patients 6604 sd 1400 46 male nonresponse rate floor ceiling numbers chivfq25 calculated internal consistency high subscales except general health driving subscales cronbach alpha ranging 072090 testretest reliability excellent intraclass correlation coefficient 090 patients worse visual acuity significantly lower scores chivfq25 supporting construct validitythe chivfq25 reliable valid tool assessing visual functions chinese patients eye diseases hong kong questions high nonresponse rates substituted available alternatives