The Relationship between Long Use of Communication Devices that Emit Blue Light with Sleep Quality

Nowadays communication device usage has already reached an unprecedented level. Based on data provided by Central Statistics Agency (BPS), by 2018, at least 62% of Indonesian had a cellphone or a smartphone, and 20% had a computer. Besides smartphones and computers, many Indonesians choose television (TV) as their entertainment device, as proven by 57% of Indonesian households having a TV, although the number has been reduced in the past decade. Based on research conducted by Zickuhr, in 2011, average adults in the United States spent 7-10 hours using their communication device per day, with the most usage in the young adult population (18-35 years) and decreasing as the age increased. The recent development of computer-based communication devices increased our chances of spending much time staring at the blue light emitting screen. Research about the blue light emission effect has become a significant concern, especially in the last five years. It is due to its effect on sleep quality and eyes well-being. This research is an analytic descriptive, non-experiment cross-sectional study. The research uses a prospective and retrospective approach due to the type of data is primary data collected using a questionnaire distributed through social media. Based on Slovin's formula, the sample needed for this study is 133 respondents. This study showed a significant correlation between the usage of blue light-emitting communication devices, sleep quality (P = 0.000), and a moderate relation (r = 0.425) with the positive pattern. Keywords: Communication device usage, blue light, sleeps qualit