Head and Eye Movements During Pedestrian Crossing in Patients with Visual Impairment: A Virtual Reality Eye Tracking Study.

ABSTRACT: Real-world navigation depends on coordinated head-eye behaviour that standard tests of visual function miss. We investigated how visual impairment affects traffic navigation, whether behaviour differs by visual impairment type, and whether this functional grouping better explains performance than WHO categorisation. Using a virtual reality (VR) headset with integrated head and eye tracking, we evaluated detection of moving cars and safe road-crossing opportunities in 40 patients with central, peripheral, or combined visual impairment and 19 controls. Only two patients with a combination of very low visual acuity and severely constricted visual fields failed both visual tasks. Overall, patients identified safe-crossing intervals 1.3-1.5 s later than controls (p ≤ 0.01). Head-eye move

SUBMITTER: Mervic M 

PROVIDER: S-EPMC12565098 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature