Existing eye-tracking headsets like Apple Vision Pro or PlayStation VR2 employ infrared camera and infrared LED illumination to track your eye movements. The actual tracking is done using computer vision algorithms that analyze each frame and output the size and position of your pupil.
Inseye’s approach is very different. Inseye’s approach is very different. It uses infrared illumination, but it does not use cameras. Instead, six inexpensive and simple photosensors are used to measure the intensity in which the infrared reflection from your eye. Camera-based eye tracking typically runs at 120Hz and takes tens of milliseconds of processing time. Camera-based tracking runs 120Hz with a processing time of tens milliseconds. Inseye’s approach is slightly less accurate than camera-based tracking, which claims an accuracy around 2 degrees. It would not support small-element user interfaces such as menus and apps in visionOS. The add-on is connected to the Quest 3 via USB-C, the headphone port, and USB-C passthrough, so that you can charge your headset while wearing it and continue using audio devices. This addon is primarily for PC VR, where OpenXR makes it simple to incorporate accessories such as this. Applications will not use eye tracking until they integrate Inseye SDK. If it’s successful, it could be included in Meta Quest 4 and Meta could acquire Inseye. It’s possible that eye tracking will one day be integrated into AR glasses.