Samsung Gear VR User Manual page 18

Health and safety warnings
Discomfort
•
Immediately discontinue use if anyone using the Gear VR
experiences any of the following symptoms: seizures; loss of
awareness; eye strain; eye or muscle twitching; involuntary
movements; altered, blurred, or double vision or other visual
abnormalities; dizziness; disorientation; impaired balance;
impaired hand-eye coordination; excessive sweating; increased
salivation; nausea; lightheadedness; discomfort or pain in the
head or eyes; drowsiness; fatigue; or any symptoms similar to
motion sickness.
•
Just as with the symptoms people can experience after they
disembark a cruise ship, symptoms of virtual reality exposure
can persist and become more apparent hours after use. These
post-use symptoms can include the symptoms above, as well as
excessive drowsiness and decreased ability to multi-task. These
symptoms may put you at an increased risk of injury when
engaging in normal activities in the real world.
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