Blocking nocturnal blue light for insomnia: A randomized controlled trial

Journal of Psychiatric Research
Ari ShechterAndrew J Westwood

Abstract

The use of light-emitting electronic devices before bedtime may contribute to or exacerbate sleep problems. Exposure to blue-wavelength light in particular from these devices may affect sleep by suppressing melatonin and causing neurophysiologic arousal. We aimed to determine if wearing amber-tinted blue light-blocking lenses before bedtime improves sleep in individuals with insomnia. Fourteen individuals (n = 8 females; age ± SD 46.6 ± 11.5 y) with insomnia symptoms wore blue light-blocking amber lenses or clear placebo lenses in lightweight wraparound frames for 2 h immediately preceding bedtime for 7 consecutive nights in a randomized crossover trial (4-wk washout). Ambulatory sleep measures included the Pittsburgh Insomnia Rating Scale (PIRS) completed at the end of each intervention period, and daily post-sleep questionnaire and wrist-actigraphy. PIRS total scores, and Quality of Life, Distress, and Sleep Parameter subscales, were improved in amber vs. clear lenses condition (p-values <0.05). Reported wake-time was significantly delayed, and mean subjective total sleep time (TST), overall quality, and soundness of sleep were significantly higher (p-values <0.05) in amber vs. clear lenses condition over the 7-d intervention...Continue Reading

Associated Clinical Trials

Mar 4, 2016·Ari ShechterAri Shechter

Citations

Dec 7, 2018·The European Journal of Neuroscience·Giulia ZerbiniMartha Merrow
Mar 21, 2019·Journal of the International Neuropsychological Society : JINS·Molly E ZimmermanAri Shechter
Jul 6, 2019·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Steven A GiannosPraveena K Gupta
Aug 23, 2019·Journal of Biophotonics·Siegfried WahlIliya V Ivanov
Jul 2, 2020·Nature and Science of Sleep·Nazish RafiqueGaeda Alkaltham
Nov 7, 2019·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Manuel SpitschanChristian Cajochen
Mar 10, 2020·Sleep Health·Jason R CarterIan M Greenlund
Feb 20, 2021·Nurse Education Today·Hemant Kumar SinghPratyusha Ganne
Feb 7, 2019·Praxis·Paolo M Suter
Dec 8, 2020·Journal of Photochemistry and Photobiology. B, Biology·Ming JinXu Zhang
May 26, 2021·Chronobiology International·Landon HesterKevin Watson
Aug 4, 2021·Annals of the New York Academy of Sciences·Jennifer CableMarie-Pierre St-Onge
Aug 20, 2021·Singapore Medical Journal·Hatta Santoso OngAndrew Lai Huat Peh
Jan 6, 2022·Chronobiology International·Brooke J MasonMichael A Grandner

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