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An Investigation of the Appropriate Level(s) and Ratio of Value Contrast for Partially Sighted Individuals

Author

Listed:
  • Samaher Fallatah
  • Kristi S. Gaines
  • Nicole G. Adams
  • Erin Schambureck

Abstract

The present study aimed to investigate the appropriate level of value contrast in built environments, including the ratio of dark value to light value color, to enable people with low vision to distinguish elements more readily from the surroundings. The study included a total of 20 participants from four locations in Texas. Participants received a two-part questionnaire: Part 1 recorded demographic information including age, gender, and visual acuity; Part 2 presented the central questions of the study relating to given images. All of the participants agreed that high value contrast images with at least 60% variance between the dark and light values were very easy to see. Participants also indicated that medium value contrast images with a variance of 30% were recognizable. Most of the participants also indicated a preference for light value to dark value in a built environment.

Suggested Citation

  • Samaher Fallatah & Kristi S. Gaines & Nicole G. Adams & Erin Schambureck, 2020. "An Investigation of the Appropriate Level(s) and Ratio of Value Contrast for Partially Sighted Individuals," SAGE Open, , vol. 10(2), pages 21582440209, May.
    • Handle: RePEc:sae:sagope:v:10:y:2020:i:2:p:2158244020924031
    DOI: 10.1177/2158244020924031
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    References listed on IDEAS

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    1. Gulcin Yapici & Ahmet Öner Kurt & Seva Öner & Tayyar Şaşmaz & Resul Buğdaycı, 2019. "Determination of the Home Accident Frequency and Related Factors Among the People Older than 65 Years Old Living in Mersin City Center, Turkey," SAGE Open, , vol. 9(2), pages 21582440198, April.
    2. Randolph G. Bias & Kevin Larson & Sheng-Cheng Huang & Paul R. Aumer-Ryan & Chris Montesclaros, 2010. "An exploratory study of visual and psychological correlates of preference for onscreen subpixel-rendered text," Journal of the Association for Information Science & Technology, Association for Information Science & Technology, vol. 61(4), pages 745-757, April.
    3. Randolph G. Bias & Kevin Larson & Sheng‐Cheng Huang & Paul R. Aumer‐Ryan & Chris Montesclaros, 2010. "An exploratory study of visual and psychological correlates of preference for onscreen subpixel‐rendered text," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 61(4), pages 745-757, April.
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