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Subjective Refraction Test Using a Smartphone for Vision Screening
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Smartphone, tablet computer and e-reader use by people with vision impairment.

Michael D Crossland1, Rui S Silva, Antonio F Macedo

  • 1Vision and Eye Research Unit, Anglia Ruskin University, Cambridge, UK; Moorfields Eye Hospital NHS Foundation Trust, London, UK.

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
|July 30, 2014
PubMed
Summary

People with vision impairment widely use smartphones and tablets, utilizing features like speech and camera magnification. Cost and interest are barriers to adoption for some individuals.

Keywords:
low visionreadingsmartphonestechnologyvision impairment

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Area of Science:

  • Assistive Technology
  • Human-Computer Interaction
  • Ophthalmology

Background:

  • Consumer electronic devices are increasingly prevalent.
  • Many devices offer accessibility features like large print and speech.
  • Anecdotal evidence suggests frequent use by individuals with vision impairment.

Purpose of the Study:

  • To survey individuals with self-identified vision impairment.
  • To determine their usage of consumer electronic devices.
  • To identify utilized accessibility features.

Main Methods:

  • An internet-based survey was conducted.
  • Participants were recruited via social media and online platforms.
  • Demographics, device ownership, usage, and accessibility feature use were collected.

Main Results:

  • 81% of respondents use smartphones; 48% use tablets; 17% use e-readers.
  • No significant difference in smartphone/tablet use between no vision and low vision groups.
  • Speech (59%) and camera/screen magnification (51%) were highly valued smartphone features.

Conclusions:

  • Smartphones, tablets, and e-readers are viable tools for people with vision impairment.
  • Speech and magnification features are beneficial for both low vision and no vision users.
  • Cost and lack of interest remain barriers to device adoption.