An evaluation of the ipod touch as an alternative low-vision magnifier for people with low vision

Authors:
Seunghyun Tina Lee;Jon A. Sanford
Affiliations:
Center for Assistive Technology and Environmental Access, College of Architecture, Georgia Institute of Technology, Atlanta, GA;Center for Assistive Technology and Environmental Access, College of Architecture, Georgia Institute of Technology, Atlanta, GA and Rehab R&D Center of Excellence, Atlanta VAMC
Venue:
UAHCI'13 Proceedings of the 7th international conference on Universal Access in Human-Computer Interaction: user and context diversity - Volume 2
Year:
2013

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Abstract

This study evaluated the feasibility of using the iPod Touch as an alternative low-vision magnifier by comparing its usability issues, subjective ratings, and preferences with those of two existing low-vision magnifiers (SmartView Pocket and Amigo). Thirty participants (30-91 years) performed magnification adjustment tasks and reading tasks using three devices and rated the devices based on ease of use, ease of understanding, and satisfaction. The results show 60% of the participants preferred the pinch zoom gesture and 66% preferred the scrolling one-finger gesture on the iPod Touch. This high user preference data indicate participants' acceptability of finger gestures, which suggests new opportunities for the adoption of new technology for low-vision video magnifiers. The gesture interfaces may be a promising method for magnification and navigation for low-vision users.