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Effect of driving simulator-based instruction in patients with visual field impairment Rui Chiba 1 , Shiho Kunimatsu-Sanuki 1 , Takuya Hiraga 1 , Emina Iwasaka 1 , Natsuko Sato 1 , Yuri Kuroda 1 , Junpei Kuwana 2 , Makoto Itoh 2 , Masakazu Hirota 3 , Shigeyuki Kan 4 , Masayo Takahashi 4,5 , Atsushi Mizota 1 , Kenji Inoue 6 1Nishikasai Inouye Eye Hospital 2Institute of Systems and Information Engineering, University of Tsukuba 3Department of Orthoptics, Faculty of Medical Technology, Teikyo University 4Kobe City Eye Hospital 5Vision Care Inc. 6Inouye Eye Hospital pp.1077-1083
Published Date 2026/9/15
DOI https://doi.org/10.11477/mf.037055790800091077
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Abstract Purpose:At a driving assessment clinic, we provide safe driving instructions to patients with visual field impairment using a driving simulator(DS). This study evaluated the effectiveness of DS-based instructions for these patients.

Methods:A total of 272 patients were tested using a driving simulator(DS)(Honda Motor Co.) and the Humphrey Field Analyzer 24-2 SITA-Standard(HFA 24-2) program at a driving assessment clinic. The DS records accident occurrences across 14 scenarios. Eye movements during the 5-minute DS test were measured with eye tracking(Tobii Pro Nano) and the standard deviation of x- and y-coordinates was used to assess the horizontal spread of visual search, for cases in which the reliability of gaze analysis was ≥50%. For the 50 patients(mean age, 68.3±11.7 years) eligible for a second DS session, we conducted a second DS session and administered a driving questionnaire. We evaluated the effect of DS instruction effect by comparing the number of DS collisions with the increase in the horizontal spread of visual search.

Results:In the second DS session, compared to the first, there was no significant difference in the number of DS collisions(p=0.68), but the horizontal spread of visual search significantly increased(p=0.0035). Among the 34 patients with an increased horizontal spread of visual search, all reported increased caution while driving after DS instruction.

Conclusion:Driving simulator-based assessment and instruction may improve gaze behavior in patients with visual field impairment, potentially leading to safer driving.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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