Block the light and sleep well: Evening blue light filtration as a part of cognitive behavioral therapy for insomnia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023752%3A_____%2F20%3A43920075" target="_blank" >RIV/00023752:_____/20:43920075 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11120/20:43919346

Result on the web

<a href="https://www.tandfonline.com/doi/full/10.1080/07420528.2019.1692859?scroll=top&needAccess=true" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/07420528.2019.1692859?scroll=top&needAccess=true</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/07420528.2019.1692859" target="_blank" >10.1080/07420528.2019.1692859</a>

Result language

angličtina

Original language name

Block the light and sleep well: Evening blue light filtration as a part of cognitive behavioral therapy for insomnia

Original language description

The objective of the present study was to assess the effect of combining CBT-I with wearing blue-light blocking glasses 90 min prior to bedtime on subjective and objective sleep parameters and daily symptoms (anxiety, depression, hyperarousal). Thirty patients (mean age 48.1 ± 16.13 years, range 21–71, 15 men/15 women) completed a CBT-I group therapy program, with groups randomly assigned to either “active” (blue-light filtering glasses) condition or “placebo” (glasses without filtering properties) condition. Patients were continually monitored by wristwatch actigraphy, kept their sleep diaries and completed a standard questionnaire battery at admission and after the end of the program. Statistical analyses showed a greater reduction of BAI score in “active” (4.33 ± 4.58) versus “placebo” (−0.92 ± 3.68) groups of patients [F = 6.389, p = .019, Cohen’s d = 1.26] and significant prolongation of subjective total sleep time in “active” (−36.88 ± 48.68 min.) versus “placebo” (7.04 ± 47.50 min.) [F = 8.56, p &lt; .01, d = 0.91] group. When pre- and post-treatment results were compared in both groups separately, using paired-samples t-tests, significant differences were observed also in the active group for BDI-II score (t = 3.66, p = .003, Cohen’s d = 0.95) and HAS score (t = 2.90, p = .012, Cohen’s d = 0.75). No significant differences were found in the placebo group. In active group, there was also a significant reduction of subjective sleep latency (t = 2.65, p = .021, d = 0.73) and an increase of subjective total sleep time (t = −2.73, p = .018, d = −0.76) without change in objective sleep duration which was significantly shortened in the placebo group. We provide further evidence that blocking short-wavelength light in the evening hours may be beneficial for patients suffering from insomnia.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30210 - Clinical neurology

Project

<a href="/en/project/LO1611" target="_blank" >LO1611: Sustainability for The National Institute of Mental Health</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chronobiology International

ISSN

0742-0528

e-ISSN

—

Volume of the periodical

37

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

248-259

UT code for WoS article

000497853600001

EID of the result in the Scopus database

2-s2.0-85075463275