Differences in vision performance in different scenarios and implications for design

Journal article (2016)

Authors

J. A. Goodman-Deane University of Cambridge
Sam Waller University of Cambridge
Keziah Latham Anglia Ruskin University
Holly Price Anglia Ruskin University
Raji Tenneti University of Western Australia
P.J. Clarkson University of Cambridge
Affiliation
External organisation
Product design Inclusive design Text size Visual ability
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Published Date

01-07-2016

Language

English

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Affiliation

External organisation

Abstract

To design accessibly, designers need good, relevant population data on visual abilities. However, currently available data often focuses on clinical vision measures that are not entirely relevant to everyday product use. This paper presents data from a pilot survey of 362 participants in the UK, covering a range of vision measures of particular relevance to product design. The results from the different measures are compared, and recommendations are given for relative text sizes to use in different situations. The results indicate that text needs to be 17-18% larger for comfortable rather than perceived threshold viewing, and a further 20% larger when users are expected to wear their everyday vision setup rather than specific reading aids.