iScience (Jan 2021)

Association between conventional or blue-light-filtering intraocular lenses and survival in bilateral cataract surgery patients

  • John E. Griepentrog,
  • Xianghong Zhang,
  • Oscar C. Marroquin,
  • Michael B. Garver,
  • AnnaElaine L. Rosengart,
  • Joyce Chung-Chou Chang,
  • Hamed Esfandiari,
  • Nils A. Loewen,
  • Matthew R. Rosengart

Journal volume & issue
Vol. 24, no. 1
p. 102009

Abstract

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Summary: Circadian rhythms regulate adaptive alterations in mammalian physiology and are maximally entrained by the short wavelength blue spectrum; cataracts block the transmission of light, particularly blue light. Cataract surgery is performed with two types of intraocular lenses (IOL): (1) conventional IOL that transmit the entire visible spectrum and (2) blue-light-filtering (BF) IOL that block the short wavelength blue spectrum. We hypothesized that the transmission properties of IOL are associated with long-term survival. This retrospective cohort study of a 15-hospital healthcare system identified 9,108 participants who underwent bilateral cataract surgery; 3,087 were implanted with conventional IOL and 6,021 received BF-IOL. Multivariable Cox proportional hazards models that included several a priori determined subgroup and sensitivity analyses yielded estimates supporting that conventional IOL compared with BF-IOL may be associated with significantly reduced risk of long-term death. Confirming these differences and identifying any potential causal mechanisms await the conduct of appropriately controlled prospective translational trials.

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