Change in Blink Rate in the Metaverse VR HMD and AR Glasses Environment

Jungho Kim, Leehwan Hwang, Soonchul Kwon and Seunghyun Lee
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Jungho Kim: Immersive Content Device Technology Research Center, Kwangwoon University, Seoul 01897, Korea
Leehwan Hwang: Department of Plasma Bio-Display, Kwangwoon University, Seoul 01897, Korea
Soonchul Kwon: Graduate School of Smart Convergence, Kwangwoon University, Seoul 01897, Korea
Seunghyun Lee: Ingenium College, Kwangwoon University, Seoul 01897, Korea

IJERPH, 2022, vol. 19, issue 14, 1-13

Abstract: Blink rate, a major physiological response in humans, directly affects ocular diseases such as keratitis and dry eye. The blink rate in normal eyes appears at a constant frequency of 6–30 times per minute and is constant for each individual. In a previous study, the blink rate decreased when viewing content with high intensity and realism. Therefore, we tried to investigate the change in blink rate when viewing the content in VR HMD (virtual reality head-mounted display) and AR (augmented reality) glasses environments. We compared and analyzed the blink rate in four environments: natural state, viewing monitor, viewing VR HMD, and viewing AR glasses. Twenty-one participants (age, 26.87 ± 3.31 years) viewed the content for 1 min in four environments. One-way repeated ANOVA was used to analyze the blink rate changes. The study showed that the blink rate was decreased in the monitor, VR HMD, and AR glasses environments compared to that in the natural environment. Comparing the VR HMD environment with the AR glasses environment showed that the blink rate decreased in the VR HMD environment. The results of this study can be used for content use safety recommendations (guidelines for safe use of contents due to decreased blink rate) in the VR HMD and AR glasses environments, which are currently attracting attention in the metaverse.

Keywords: blink rate; metaverse; VR HMD; AR glasses; guideline (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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