Poster: Usability of Integrated Eye-Tracking HMDs for Real-Time Unreal Engine Applications

Eye tracking is increasingly employed in VR-based user-experience and interaction research. Although most prior work relies on costly professional or custom- built eye trackers, many contemporary HMDs embed infrared eye trackers, raising the question of whether these built- in systems are mature and sufficiently support real-time research pipelines. We summarize findings from our usability evaluation of four eye-tracking HMDs with Unreal Engine (UE) 5.7. We assess each HMD’s software maturity, engine integration effort, and day-to-day usability, and summarize guidance for researchers selecting eye-tracking hardware for real-time applications.