Department of Ophthalmology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.
Invest Ophthalmol Vis Sci. 2014 Jan 15;55(1):330-6. doi: 10.1167/iovs.13-13520.
To compare self-assessed driving habits and skills of licensed drivers with central visual loss who use bioptic telescopes to those of age-matched normally sighted drivers, and to examine the association between bioptic drivers' impressions of the quality of their driving and ratings by a "backseat" evaluator.
Participants were licensed bioptic drivers (n = 23) and age-matched normally sighted drivers (n = 23). A questionnaire was administered addressing driving difficulty, space, quality, exposure, and, for bioptic drivers, whether the telescope was helpful in on-road situations. Visual acuity and contrast sensitivity were assessed. Information on ocular diagnosis, telescope characteristics, and bioptic driving experience was collected from the medical record or in interview. On-road driving performance in regular traffic conditions was rated independently by two evaluators.
Like normally sighted drivers, bioptic drivers reported no or little difficulty in many driving situations (e.g., left turns, rush hour), but reported more difficulty under poor visibility conditions and in unfamiliar areas (P < 0.05). Driving exposure was reduced in bioptic drivers (driving 250 miles per week on average vs. 410 miles per week for normally sighted drivers, P = 0.02), but driving space was similar to that of normally sighted drivers (P = 0.29). All but one bioptic driver used the telescope in at least one driving task, and 56% used the telescope in three or more tasks. Bioptic drivers' judgments about the quality of their driving were very similar to backseat evaluators' ratings.
Bioptic drivers show insight into the overall quality of their driving and areas in which they experience driving difficulty. They report using the bioptic telescope while driving, contrary to previous claims that it is primarily used to pass the vision screening test at licensure.
比较使用双目望远镜的中央视力丧失的有照驾驶员与年龄匹配的正常视力驾驶员的自我评估驾驶习惯和技能，并研究双目驾驶员对驾驶质量的印象与其“后座”评估员评分之间的关系。
参与者为有照双目驾驶员（n=23）和年龄匹配的正常视力驾驶员（n=23）。调查问卷涵盖驾驶困难、空间、质量、暴露等问题，并且对于双目驾驶员，还包括望远镜在道路情况中的帮助。评估了视力和对比敏感度。从病历或访谈中收集了有关眼部诊断、望远镜特征和双目驾驶经验的信息。在常规交通条件下的道路驾驶表现由两名评估员独立进行评分。
与正常视力驾驶员一样，双目驾驶员报告在许多驾驶情况下（例如左转弯、高峰时段）几乎没有或没有困难，但在能见度差和不熟悉的区域报告困难更大（P<0.05）。双目驾驶员的驾驶暴露度降低（平均每周驾驶 250 英里，而正常视力驾驶员为每周 410 英里，P=0.02），但驾驶空间与正常视力驾驶员相似（P=0.29）。除了一名双目驾驶员外，所有驾驶员都在至少一个驾驶任务中使用望远镜，而 56%的驾驶员在三个或更多任务中使用望远镜。双目驾驶员对驾驶质量的判断与后座评估员的评分非常相似。
双目驾驶员对驾驶的整体质量和他们感到困难的驾驶领域有深刻的认识。他们报告在驾驶时使用双目望远镜，与之前声称该望远镜主要用于在执照视力检查中通过的说法相反。
