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Poster
PS28A-05-143

Ophthalmologic investigation of visual field impairment, self-reported driving practices, and driving history among drivers living in Tokyo

[Speaker] Okamura, Kazuko:1
[Co-author] Iwase, Aiko:2, Fujita, Goro:1, Kihira, Makoto:1, Kosuge, Ritsu:1
1:National Research Institute of Police Science (Japan), 2:Tajimi Iwase Eye Clinic (Japan)

Visual field impairment may cause delay in detecting hazards on the road while driving and car crashes in worst cases. The present study reports on ophthalmologic visual function screening, self-reported driving practices, and recent driving history of middle-aged and older drivers obtained at the Driving License Examination Center in Tokyo (N = 546).
Results were in line with previous research in that functional visual field may not be the most powerful explanatory variable of past car crashes or violations of individual drivers. Association of past car crashes with near-miss experience, self-regulating driving behavior and health status was also explored.
Limitation of this study includes possible selection bias of the sample, as only a small portion of drivers with severe visual field impairment participated in this study. Future research must address both ophthalmologic screening and information processing capacity measured by useful field of view.
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