title: Protective effect of blue-light shield eyewear for adults against light pollution from self-luminous devices used at night.
abstract: We investigated sleep quality and melatonin in 12 adults who wore blue-light shield or control eyewear 2 hours before sleep while using a self-luminous portable device, and assessed visual quality for the two eyewear types. Overnight melatonin secretion was significantly higher after using the blue-light shield (P < 0.05) than with the control eyewear. Sleep efficacy and sleep latency were significantly superior for wearers of the blue-light shield (P < 0.05 for both), and this group reported greater sleepiness during portable device use compared to those using the control eyewear. Participants rated the blue-light shield as providing acceptable visual quality.
authors.affiliation: a Department of Ophthalmology , Keio University School of Medicine , Shinjuku , Tokyo , Japan.
authors.forename: Masahiko
authors.initials: M
authors.lastname: Ayaki
authors.affiliation: b Department of Biology , Tokyo Medical and Dental University , Ichikawa , Chiba , Japan.
authors.forename: Atsuhiko
authors.initials: A
authors.lastname: Hattori
authors.affiliation: b Department of Biology , Tokyo Medical and Dental University , Ichikawa , Chiba , Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Maruyama
authors.affiliation: b Department of Biology , Tokyo Medical and Dental University , Ichikawa , Chiba , Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Nakano
authors.affiliation: a Department of Ophthalmology , Keio University School of Medicine , Shinjuku , Tokyo , Japan.
authors.forename: Michitaka
authors.initials: M
authors.lastname: Yoshimura
authors.affiliation: a Department of Ophthalmology , Keio University School of Medicine , Shinjuku , Tokyo , Japan.
authors.forename: Momoko
authors.initials: M
authors.lastname: Kitazawa
authors.affiliation: a Department of Ophthalmology , Keio University School of Medicine , Shinjuku , Tokyo , Japan.
authors.forename: Kazuno
authors.initials: K
authors.lastname: Negishi
authors.affiliation: a Department of Ophthalmology , Keio University School of Medicine , Shinjuku , Tokyo , Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Tsubota
mesh_terms: D000328:Adult; D002940:Circadian Rhythm / Q000502:physiology*; D005260:Female; D006801:Humans; D008027:Light; D008297:Male; D008550:Melatonin / Q000627:therapeutic use; D017440:Photoperiod; D020178:Sleep Disorders, Circadian Rhythm / Q000188:drug therapy / Q000628:therapy*; D012894:Sleep Stages / Q000187:drug effects*; D055815:Young Adult
chemical_list: D008550:Melatonin
keywords: Blue-light; eye fatigue; eyewear; light pollution; melatonin; retinal ganglion cells; sleep