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Development of the Japanese version of the Visual Discomfort Scale

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  • Shu Imaizumi
  • Shinichi Koyama
  • Yoshihiko Tanno

Abstract

Background: Visual stimuli, such as stripes and texts, can induce “visual discomfort” including perceptual and somatic symptoms. Individuals reporting high levels of visual discomfort might experience migraine headache and may have reduced reading efficiency due to visual perceptual difficulties. This study aimed to develop and validate the Japanese version of the Visual Discomfort Scale, which measures proneness to visual discomfort. Methods and results: In Survey 1, 428 adults completed the Japanese version and a questionnaire assessing migraine morbidity. Rasch analysis revealed that the Japanese version is a unidimensional scale with a high amount of unexplained variance due to random noise rather than another dimension, and has high person and item reliabilities. Participants with migraine exhibited high scores in the Japanese version, indicating the construct validity of the scale. Survey 2 with 118 adults revealed a strong test-retest correlation for the Japanese version, indicating the stability of the scale. Conclusion: The Japanese version of the Visual Discomfort Scale is a sufficiently reliable and valid scale for assessing visual discomfort, although its unidimensionality leaves room for further improvements.

Suggested Citation

  • Shu Imaizumi & Shinichi Koyama & Yoshihiko Tanno, 2018. "Development of the Japanese version of the Visual Discomfort Scale," PLOS ONE, Public Library of Science, vol. 13(1), pages 1-23, January.
    • Handle: RePEc:plo:pone00:0191094
    DOI: 10.1371/journal.pone.0191094
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