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Sleep and subjective happiness between the ages 40 and 59 in relation to presbyopia and dry eye

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  • Kazuno Negishi
  • Masahiko Ayaki
  • Motoko Kawashima
  • Kazuo Tsubota

Abstract

Purpose: The aim of this study was to explore the status of quality of life between the ages 40–59 in relation to presbyopia and dry eye. Methods: Near add power and preferred contact lens power were examined in 219 participants at three clinics. 2000 participants completed a web-based survey on presbyopic symptoms, symptomatic dry eye, sleep quality, and subjective happiness. Results: Mean preferred corrected visual acuity was less than 20/20 in women (vs men, P

Suggested Citation

  • Kazuno Negishi & Masahiko Ayaki & Motoko Kawashima & Kazuo Tsubota, 2021. "Sleep and subjective happiness between the ages 40 and 59 in relation to presbyopia and dry eye," PLOS ONE, Public Library of Science, vol. 16(4), pages 1-13, April.
    • Handle: RePEc:plo:pone00:0250087
    DOI: 10.1371/journal.pone.0250087
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    Cited by:

    1. Kazuno Negishi & Masahiko Ayaki, 2021. "Presbyopia developed earlier during the COVID-19 pandemic," PLOS ONE, Public Library of Science, vol. 16(11), pages 1-9, November.

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