Large-scale integration in tablet screens for blue-light reduction with optimized color: The effects on sleep, sleepiness, and ocular parameters

Masahiko Ayaki,Yusuke Maruyama,Kazuno Negishi,Atsuhiko Hattori,Kazuo Tsubota,Jurg Bahler

doi:10.1080/23312025.2017.1294550

Masahiko Ayaki, Yusuke Maruyama + Show 4 more

Open Access

https://doi.org/10.1080/23312025.2017.1294550

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Abstract

We investigated sleep quality and visual symptoms in 30 adults who spent two hours before bedtime using a tablet device with and without the advanced technology of large-scale integration for blue-light reduction and color management. Dry eye- and eye fatigue-related symptom scores were significantly better with than without blue-light reduction. Sleepiness and saliva melatonin during the task were greater with blue-light reduction, however, overnight melatonin secretion and sleep quality parameters were similar in both conditions. In conclusion, tablet devices using large-scale integration for blue-light reduction increased sleepiness and reduced eye fatigue and dryness during tasks before bedtime.

Highlights

There is growing evidence that exposure to light emitted from a portable device before bedtime disrupts sleep and daytime function (Chang, Aeschbach, Duffy, & Czeisler, 2015; Higuchi, Motohashi, Liu, & Maeda, 2005)
We found new technology enabled the subjects to do tasks with minimum disadvantages for sleep, dry eye symptoms, and eye fatigue
The dry eye symptom score was improved with the use of large-scale integration (LSI) for blue-light reduction (0.46 ± 0.80), compared to without it (0.79 ± 0.89; p = 0.01)

Summary

Introduction

There is growing evidence that exposure to light emitted from a portable device before bedtime disrupts sleep and daytime function (Chang, Aeschbach, Duffy, & Czeisler, 2015; Higuchi, Motohashi, Liu, & Maeda, 2005). In this respect the more recently available portable devices have become a major problem, unlike the conventional displays of desktop computers and ambient lighting, since they are manipulated at a very short distance and even very young users are using them late at night for several hours Please visit our HP for details; http:// ophthal.med.keio.ac.jp/research/index.html This scientific paper describes large-scale integration (LSI) built in tablet PC for blue-light reduction maintained natural sleepiness and reduced eye fatigue and dryness at night. We believe LSI should be a promising solution for busy mobile user to maintain systemic and eye health

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