title: Differences in vision performance in different scenarios and implications for design.
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.
authors.affiliation: Engineering Design Centre, Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, Cambridgeshire, UK. Electronic address: jag76@cam.ac.uk.
authors.forename: Joy
authors.initials: J
authors.lastname: Goodman-Deane
authors.affiliation: Engineering Design Centre, Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, Cambridgeshire, UK.
authors.forename: Sam
authors.initials: S
authors.lastname: Waller
authors.affiliation: Department of Vision & Hearing Sciences and Vision and Eye Research Unit, Anglia Ruskin University, Cambridge CB1 1PT, Cambridgeshire, UK.
authors.forename: Keziah
authors.initials: K
authors.lastname: Latham
authors.affiliation: Department of Vision & Hearing Sciences and Vision and Eye Research Unit, Anglia Ruskin University, Cambridge CB1 1PT, Cambridgeshire, UK.
authors.forename: Holly
authors.initials: H
authors.lastname: Price
authors.affiliation: General Practice, University of Western Australia, Crawley WA 6009, Western Australia, Australia.
authors.forename: Raji
authors.initials: R
authors.lastname: Tenneti
authors.affiliation: Engineering Design Centre, Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, Cambridgeshire, UK.
authors.forename: P John
authors.initials: PJ
authors.lastname: Clarkson
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D006804:Ergonomics; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D011795:Surveys and Questionnaires; D013647:Task Performance and Analysis; D006113:United Kingdom; D014785:Vision, Ocular / Q000502:physiology*; D058609:Visual Field Tests; D014796:Visual Perception; D055815:Young Adult
keywords: Inclusive design; Product design; Text size; Visual ability