
Tobii Pro Glasses 3 User Manual v 1.9 10
3.4 Infrared warning
Do not use the Tobii Pro Glasses 3 system when in the vicinity of devices that are sus-
ceptible to Infrared (IR) light. When activated, the head unit emits IR light, which can
affect certain medical devices and other devices that are susceptible to disturbance by
IR light and/or radiation.
3.5 Photosensitivity/epilepsy warning
Some people with photosensitive epilepsy are susceptible to epileptic seizures or loss
of consciousness when exposed to certain flashing lights or light patterns in everyday
life. This may happen even if the person has no medical history of epilepsy or has
never had any epileptic seizures.
A person with photosensitive epilepsy would also be likely to have problems with TV
screens, some arcade games, and flickering fluorescent bulbs. These people may
have a seizure while watching certain images or patterns on a monitor, or even when
exposed to the light sources of an eye tracker. It is estimated that about 3-5% of
people with epilepsy have this type of photosensitive epilepsy. Many people with pho-
tosensitive epilepsy experience an "aura" or feel odd sensations before the seizure
occurs. If the participant starts to feel odd during use, have them remove the head unit
immediately.
3.6 Mechanical shock
The Tobii Pro Glasses 3 system is a delicate measuring instrument used for research
purposes and should be treated with care at all times. To avoid breaking or damaging
the internal electronic circuits, do not drop, knock, or shake the device. Eye tracking
quality or accuracy can be seriously affected if the head unit or recording unit are
dropped. If the eye tracker is exposed to mechanical shock, for example, when
dropped, do not try to start it or connect it to a power source. Contact Tobii Customer
Care for instructions.
3.7 Bending
To avoid breaking or damaging the internal electronic circuits, do not bend any part of
the eye tracking system. Eye tracking quality or accuracy can be seriously affected if
the head unit or recording unit has been bent.
3.8 Do not open or disassemble
Do not open or disassemble the head unit or the recording unit. Noncompliance will
result in loss of warranty! There are no user-serviceable components inside. Contact
Tobii Customer Care if your Tobii Pro Glasses 3 system is not working properly.