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首页> 外文OA文献 >Obstacle avoidance, visual detection performance, and eye-scanning behavior of glaucoma patients in a driving simulator: A preliminary study
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Obstacle avoidance, visual detection performance, and eye-scanning behavior of glaucoma patients in a driving simulator: A preliminary study

机译：驾驶模拟器中青光眼患者的避障，视觉检测性能和眼部扫描行为：初步研究

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摘要

The objective of this study was to evaluate differences in driving performance, visual detection performance, and eye-scanning behavior between glaucoma patients and control participants without glaucoma. Glaucoma patients (n = 23) and control participants (n = 12) completed four 5-min driving sessions in a simulator. The participants were instructed to maintain the car in the right lane of a two-lane highway while their speed was automatically maintained at 100 km/h. Additional tasks per session were: Session 1: none, Session 2: verbalization of projected letters, Session 3: avoidance of static obstacles, and Session 4: combined letter verbalization and avoidance of static obstacles. Eye-scanning behavior was recorded with an eye-tracker. Results showed no statistically significant differences between patients and control participants for lane keeping, obstacle avoidance, and eye-scanning behavior. Steering activity, number of missed letters, and letter reaction time were significantly higher for glaucoma patients than for control participants. In conclusion, glaucoma patients were able to avoid objects and maintain a nominal lane keeping performance, but applied more steering input than control participants, and were more likely than control participants to miss peripherally projected stimuli. The eye-tracking results suggest that glaucoma patients did not use extra visual search to compensate for their visual field loss. Limitations of the study, such as small sample size, are discussed.
机译：这项研究的目的是评估青光眼患者与无青光眼的对照组参与者在驾驶性能，视觉检测性能和眼部扫描行为上的差异。青光眼患者（n = 23）和对照组参与者（n = 12）在模拟器中完成了四个5分钟的驾驶课程。指示参与者将汽车保持在两车道高速公路的右车道上，而他们的速度自动保持在100 km / h。每个会话的其他任务包括：第1课：无，第2课：对预计字母的语言化，第3课：避免静态障碍，第4课：结合字母的语言化和静态障碍。用眼动仪记录眼动行为。结果显示，在患者与对照组之间，在保持车道，避开障碍物和进行眼部扫描行为方面没有统计学上的显着差异。青光眼患者的指导活动，遗漏字母的数量和字母反应时间显着高于对照组。总之，青光眼患者能够避开物体并保持正常的车道保持性能，但是比对照组参与者施加更多的转向输入，并且比对照组参与者更容易错过周围投射的刺激。眼动结果表明，青光眼患者没有使用额外的视觉搜索来弥补他们的视野丧失。讨论了研究的局限性，例如样本量小。

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