CHAPTER 100: NATIONAL EYE INSTITUTE 25-ITEM VISUAL FUNCTION QUESTIONNAIRE (VFQ-25)

Description

The 25-Item National Eye Institute Visual Functioning Questionnaire (VFQ-25) is designed to measure vision-related functioning and the influence of vision-related problems across a number of conditions associated with poor vision. Based on the original 51-item assessment, it can be administered in either interview or self-report format where its results can be used to identify problems with vision-related function, the influence of visual disability on emotional well-being and social functioning, and a person’s ability to engage in activities of daily living (ADLs) (Mangione, 2000). The VFQ-25 represents 11 vision-related constructs and contains up to 39 items, plus an additional single-item general health rating question, which has been shown to be a robust predictor of future health and mortality in population-based studies (Mangione, 2000). An example question on the assessment is, “How much of the time do you worry about your eyesight?” which is then scored as either (1) none of the time, (2) a little of the time, (3) some of the time, (4) most of the time, or (5) all of the time. Scoring involves raw scores being converted to a 100-point scale with higher scores associated with worse performance. Subscale scores can also be generated. The assessment can be completed in less than 15 minutes.

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