Frequently asked questions

Q: What is the operating distance of the eye tracker?
A: The Tobii Eye Tracker 4C works at a distance of 50 – 95 cm / 20 - 37” and the Tobii Eye Tracker 5 works at a distance of 45 - 95 cm / 18 - 37".

Q: Can I use the eye tracker for just any game?
A: No, the game needs to have integrated support for Tobii Eye Tracking or be eye tracking enabled with Tobii Game Hub. You can find all supported games on https://tobiigaming.com/games.

If there is no support for your favorite games, please request them at the bottom of the page above. It is also recommended that you get in contact with game studios directly to request Tobii Eye Tracking support.

Q: My eye tracker is not connecting, what can I do?
A: If your eye tracker is not connecting it could mean that your USB controller is not providing enough power. The tracker needs about 5 - 6W for a few milliseconds to turn on its lights and it uses about 1.5 - 2W while in use. 

Using a USB 2.0 port is also recommended to power the tracker. If it’s still a no-go, please try using a powered USB 2.0 hub in order to provide more power for the tracker.

Q: Does it work with glasses or lenses?
A: Yes, unless you have glasses that have a reflective type of glass. Read more here.

Q: Can I use it for research or analysis?
A: No, this is against our terms of sales. 

Q: Can I use Eye Tracker 5 for assistive use?
A: No, the Eye Tracker 5 is customized and engineered for gaming only. To find eye trackers specialized for assistive use, please visit Tobii Dynavox.

The PCEye 5 works indoors and outdoors as it is a communication device made to be used whenever, wherever. You also get specialized software for communication that has been developed for many years to give people a voice, the software is called Windows Control.
Read more about the PCEye 5

Q: What is the maximum screen size it works with?
A: For our Tobii peripherals, the maximum screen sizes are:

• 27 inches with a 16:9 Aspect Ratio
• 30 inches with a 21:9 Aspect Ratio

We do not recommend that you use a larger screen. especially for our Windows Interaction features, but for some gaming features like Extended View it would work pretty well.

Q: I can see red lights on the eye tracker, is it safe?
A: Our eye trackers use Near Infrared light which is completely safe for the human eye. You can, for example, find Near Infrared light in our natural environment for instance in fires.

Q: What is the Tobii EyeChip?
A: The world’s first eye tracking ASIC and located on the eye tracker, the EyeChip contains all Tobii algorithms necessary for eye tracking computation. The addition of EyeChip significantly reduces power consumption, CPU load and data transfer between the eye tracker and its host computer.

Q: Is it possible to use a Tobii Eye Tracker together with TrackIR?
A: We cannot recommend to use them simultaneously as we have seen issues where they can interfere with each other, however, we have received positive user feedback.

Q: What sort of head tracking does it support?
A: Position and rotation.

• Position: X, Y, and Z. 
• Rotation: X, Y, and Z (pitch, yaw, and roll).

Please note that some games might only have rotation or position added and some games don't have head tracking support. Read more on https://tobiigaming.com/getstarted

Q: Does it work with curved screens?
A: Yes, our peripheral eye trackers work with curved screens. The Eye Tracker 5 includes a Flex Mount that can be used on curved and screens of various shapes. If you have the Eye Tracker 4C or need extra flex mounts, you can get yourself a mounting kit here.