Coming to terms with having a sight problem can be tough. Dealing with the emotional and practical impact of changes to your sight can be overwhelming. Our guide to coping with sight loss contains information and links to sources of help.
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Date: 08 Jan 2007 Author: Langelaan, M; Nispen, Ruth van [et al.]
The Visual Functioning Questionnaire (VFQ-25) is one of the most widely used measures of vision-related quality of life. However, the questionnaire does not meet some psychometric quality criteria. The objectives of this study were first to obtain the factor structure of the VFQ-25, and second, to obtain interval scales by Rasch analysis.