Effects of Bright Light with Reduced Blue Light on Sleepiness on Rising: A Small Exploratory Study
Joint Authors
Miura, Jun
Yuasa, Tomonori
Sugai, Yasunori
Yamagami, Kana
Aizu, Yoshihisa
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-04
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Bright light therapy is a treatment modality for seasonal affective disorder and circadian rhythm disorders in which artificial light of 2,500 lux or higher at the eye is effective.
Although short-wavelength visible light is more effective than long-wavelength visible light, it may be hazardous to the retina.
Recently, light-emitting diodes (LEDs) have been used as the light source in bright light therapy apparatuses.
We developed goggles for bright light therapy equipped with LEDs as the light source.
The aim of this study was to examine the efficacy and safety of our goggles when emitting 10,000-lux light with its short-wavelength light content reduced by 30% or 50% (denoted as 30%-cut and 50%-cut light, respectively, henceforth).
Six healthy young males participated in this study.
They were administered no light, 50%-cut light, and 30%-cut light for 30 min early in the morning for 4 days each.
Subjective sleepiness and sleep quality were evaluated by the Stanford Sleepiness Scale (SSS) and the Oguri–Shirakawa–Azumi sleep inventory MA version (OSA-MA), respectively.
Subjective sleepiness evaluated by the SSS and the subscale of the OSA-MA significantly decreased with 30%-cut light compared with no light.
Psychomotor performance evaluated by a calculation task improved with the 30%-cut light, although not significant after multiple comparisons were considered.
No abnormality was found by ophthalmoscopy and the vision test.
In conclusion, our goggles with 30%-cut light may be safe and have an awakening effect.
American Psychological Association (APA)
Miura, Jun& Yuasa, Tomonori& Sugai, Yasunori& Yamagami, Kana& Aizu, Yoshihisa. 2018. Effects of Bright Light with Reduced Blue Light on Sleepiness on Rising: A Small Exploratory Study. Sleep Disorders،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1214601
Modern Language Association (MLA)
Miura, Jun…[et al.]. Effects of Bright Light with Reduced Blue Light on Sleepiness on Rising: A Small Exploratory Study. Sleep Disorders No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1214601
American Medical Association (AMA)
Miura, Jun& Yuasa, Tomonori& Sugai, Yasunori& Yamagami, Kana& Aizu, Yoshihisa. Effects of Bright Light with Reduced Blue Light on Sleepiness on Rising: A Small Exploratory Study. Sleep Disorders. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1214601
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214601