Visual stress symptoms from stereoscopic television

Visual stress from watching 3D TV and other stereoscopic displays has been reported by a number of studies. Alarming media reports of concerns for public health prompted the 3D industry to issue consumer guidance and warnings emphasising best practice and caution for susceptible groups. This study considers the importance of the problem by addressing the questions of prevalence, magnitude and significance of a range of symptoms and preferences associated with 3D viewing. A large cohort of 52 subjects (likely the largest used in such studies) with no pre-existing optometric or medical conditions viewed randomised 10 minute sessions in 3D or 2D. Results revealed a wide range of adverse symptoms of high magnitude and statistical significance for 3D, whether measured as a comparison between 3D and 2D or independently for each condition. In addition, an online survey of 106 participants concurred with subject preferences in indicating that 48% of respondents do not find 3D TV comfortable to watch. We conclude that visual stress and discomfort associated with 3D viewing is prevalent for a significant proportion of the healthy consumer population, and propose that the 3D industry address the problem on public health and commercial grounds.