displays heighten perceived immersion
but elevate viewing symptoms for some viewers. The present study measured prevalence and magnitude of perceived immersion
and viewing symptoms in stereoscopic viewing, and related them to viewer's characteristics and viewing position.
Two hundred three teens and adults viewed a movie in 2D or 3D
while sitting at different angles and distances. Their prior viewing symptoms, as well as visual and physical discomfort immediately before and after viewing, were measured with questionnaires. They were also asked to report their perceived immersion
after the viewing.
Twelve percent and twenty-one percent of 2D and stereoscopic 3D
participants reported increases of measured symptoms during and/or after viewing. Stereoscopic 3D
viewing incurred greater and more frequent perception of blurred vision, double vision, dizziness, disorientation, and nausea than 2D viewing. Reported ocular and physical symptoms were negatively correlated to perceived immersion
viewing. Older viewers (age 46 years or older) reported greater ocular, visual, and motion sickness
symptoms in 2D viewing, and younger viewers (age 24–34 years) reported greater visual and motion sickness
symptoms in 3D
viewing. Sitting in an oblique position attenuated perceived immersion
but also reduced motion symptoms in 3D
viewing. Prior viewing symptoms in 2D tasks also predicted ocular and physical symptoms in 2D but less so in 3D
viewing provides greater immersion
, but it can also lead to heightened visual and motion sickness
symptoms. Viewers with prior symptoms in viewing TV and computer screen are not more likely to have increased ocular and physical symptoms in 3D
viewing. Young viewers incurred higher immersion
but also greater visual and motion sickness
symptoms in 3D
viewing; both will be reduced if a farther distance and a wider viewing angle are adopted.