학술논문
Validation of the Visual Disability Questionnaire (VDQ) in India
Document Type
Article
Source
Optometry and Vision Science; July 2009, Vol. 86 Issue: 7 pE826-E835, 10p
Subject
Language
ISSN
10405488; 15389235
Abstract
To validate visual disability questionnaire (VDQ) in patients with low vision in India, and explore whether the two latent traits “importance” and “difficulty” associated with performance of daily activities are valid and independent constructs.