PlayStation VR2 is a VR headset being developed by SONY Interactive Entertainment. It's been confirmed that PSVR2 is using eye-tracking, the technology from Tobii, the world-leading eye-tracking tech pioneer, that recognizes user's gazing.
While Tobii hasn't reveal any detail yet, it is widely known that PS VR2 is featuring Foveated Rendering, which uses eye-tracking technology to optimize GPU loads by rendering areas close to the viewpoint at higher resolution and areas away from the viewpoint at lower resolution.
Tobii is good at it
Additionally, like other existing VR head-mounted displays that support eye-tracking, PSVR2 is expected to allow gamers to control games through eye movements.
Source: 4Gamer
Contributed by nado