Researchers observe real-time changes in tear film during VR gaming

Researchers from Waseda University in Japan have observed the effect of playing virtual reality (VR) computer games on tear film dynamics in real-time.

Writing in Scientific Reports, the researchers highlighted that previous studies have primarily focused on comparisons of tear film stability before and after headset use.

“To accurately evaluate the impact of wearing a VR headset on the tear film, it is essential to capture the dynamic behavior of the tear film during headset use,” they stated.

The scientists enrolled 14 study participants who played a 30-minute VR game while their tear film kinetics were analysed.

During the course of the game, the researchers observed an increase in corneal and upper eyelid surface temperatures and signs that suggested a thickening of the lipid layer.

The scientists believe periocular warming inside the headset may have led to the thickening of the tear film lipid layer.

Associate professor, Yoshiro Okazaki, of Waseda University, highlighted that the study is not only useful for VR users, but for headset designers involved in designing future VR systems.

“Our findings provide insights into how the thermal environment inside VR headsets may influence tear film behavior,” he said.