PLoS ONE (Jan 2021)

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

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

DOI
https://doi.org/10.1371/journal.pone.0250087
Journal volume & issue
Vol. 16, no. 4
p. e0250087

Abstract

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PurposeThe 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.MethodsNear 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.ResultsMean preferred corrected visual acuity was less than 20/20 in women (vs men, PConclusionPresbyopia and dry eye were significantly associated with sleep quality and subjective happiness in middle-adulthood.