Good night!: A study on the effects of blue-light filter glasses  on sleep quality and cognitive performance in  young adults

In this study the effects of using blue-light filter glasses on sleep quality and vigilance is investigated in 60 young adults, in order to gain more insight in blue-light filter glasses as an effective aid for poor sleep quality. Blue-light filter glasses were expected to have a positive effect on sleep quality and vigilance performance. This was a single-blind controlled study in which the participants reported their sleep quality on the PSQI and KSS and their vigilance performance was measured with the Psychomotor Vigilance Task. After two weeks of intervention, wearing blue-light filter glasses in the experimental condition and listening to music in the control condition, follow-up measures were registered. Measures of total sleep quality and sleep latency increased and vigilance reaction times decreased over time in the analysis of variances with repeated measures. These changes could not be explained by the use of blue-light filter glasses or the relation between vigilance and...Show moreIn this study the effects of using blue-light filter glasses on sleep quality and vigilance is investigated in 60 young adults, in order to gain more insight in blue-light filter glasses as an effective aid for poor sleep quality. Blue-light filter glasses were expected to have a positive effect on sleep quality and vigilance performance. This was a single-blind controlled study in which the participants reported their sleep quality on the PSQI and KSS and their vigilance performance was measured with the Psychomotor Vigilance Task. After two weeks of intervention, wearing blue-light filter glasses in the experimental condition and listening to music in the control condition, follow-up measures were registered. Measures of total sleep quality and sleep latency increased and vigilance reaction times decreased over time in the analysis of variances with repeated measures. These changes could not be explained by the use of blue-light filter glasses or the relation between vigilance and sleep quality. The expected positive relation between sleep quality and cognitive performance was not supported by these findings. In conclusion, this study does not provide convincing support for blue-light filter glasses as an effective aid for poor sleep quality. Among others, including objective measures and treatments with longer periods of time are recommended for future research.Show less

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Good night! A study on the effects of blue-light filter glasses on sleep quality and cognitive performance in young adults