- Never expose the VR viewer (Google cardboard) lenses to direct sunlight. The lenses behave just like magnifying glass and can cause fire or damage to your smartphone screen IF exposed to direct sunlight. Never leave viewer unattended and pointing towards the sky. Always keep the viewer in the original storage box when not in use.
When using a VR viewer, your head stays in the same direction, while the image moves horizontally. This conflict, may cause nausea. If you feel nauseous, stop using the VR Viewer.