Journal article
Utility of EQ-5D to Assess Patients Undergoing Cataract Surgery
Marcus Ang, Eva Fenwick, Tien Yin Wong, Ecosse Lamoureux, Nan Luo
OPTOMETRY AND VISION SCIENCE | LIPPINCOTT WILLIAMS & WILKINS | Published : 2013
Abstract
PURPOSE: To assess the construct validity and responsiveness of the EuroQoL-5D (EQ-5D) instrument in Asian patients undergoing cataract surgery in Singapore. METHODS: In this prospective study, English- or Chinese-speaking patients (n = 216) completed the EQ-5D and the VF-14 questionnaires before and 3 months after they underwent cataract surgery. The impact of cataracts on patients was assessed using two standard gamble (SG) questions before surgery. Construct validity of the EQ-5D index and the visual analog scale (VAS) was assessed by examining their correlation with the VF-14 and SG scores. Responsiveness of the EQ-5D was compared with that of the VF-14 in terms of the magnitude of score..
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Funding Acknowledgements
The authors thank Dr. Marcus Lim for initiating this study. This study was conducted using a research grant from the Singapore Eye Research Institute (SERI).