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Intraocular scattering as a predictor of driving performance in older adults with cataracts.
PLOS ONE ( IF 2.9 ) Pub Date : 2020-01-14 , DOI: 10.1371/journal.pone.0227892 Sonia Ortiz-Peregrina 1 , Carolina Ortiz 1 , Carlos Salas 1 , Miriam Casares-López 1 , Margarita Soler 1 , Rosario G Anera 1
PLOS ONE ( IF 2.9 ) Pub Date : 2020-01-14 , DOI: 10.1371/journal.pone.0227892 Sonia Ortiz-Peregrina 1 , Carolina Ortiz 1 , Carlos Salas 1 , Miriam Casares-López 1 , Margarita Soler 1 , Rosario G Anera 1
Affiliation
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Cataracts can limit a person's ability to perform vision-dependent tasks safely, affecting the quality of life of older people. This study examines the relationship between visual function and driving, by studying which visual parameters might be important for predicting driving performance in older drivers with and without cataracts, ascertaining whether the objective measurement of intraocular scattering should be considered in assessment procedures for older drivers. This cross-sectional study involved a total of 20 older drivers (10 patients with bilateral cataracts and 10 control subjects). All participants were examined for visual acuity, contrast sensitivity, visual discrimination capacity, and intraocular scattering. Driving performance was also tested using a driving simulator. To study the relationship between visual parameters and driving performance, a correlation analysis and regression model were used. Drivers with cataracts showed a significantly impaired (p<0.05) visual function, with an Objective Scattering Index (OSI) 3.5 times greater than the control group. Driving performance was also significantly worse (p<0.05) in drivers with cataracts, reflected by a notable deterioration in lane keeping. The correlation analysis showed significant associations between driving performance and all the visual parameters studied. Finally, the regression model revealed that the OSI was the best predictor of driving performance, accounting for 51.3% of its variance. Visual function and driving performance are markedly deteriorated when cataracts are present. Our results demonstrate that the objective scattering index (OSI) has a high predictive power when it comes to simulated driving performance in older drivers, both with and without cataracts, suggesting that scatter measurements could be important in helping better understand visual limitations in older drivers.
中文翻译：
眼内散射可预测老年人白内障驾驶性能。
白内障会限制一个人安全地执行与视觉有关的任务的能力，从而影响老年人的生活质量。本研究通过研究哪些视觉参数对于预测有无白内障和无白内障的老年驾驶员的驾驶性能可能很重要，从而确定了视觉功能与驾驶之间的关系，并确定在老年驾驶员的评估程序中是否应考虑眼内散射的客观测量。这项横断面研究总共涉及20位年龄较大的驾驶员（10名双侧白内障患者和10名对照受试者）。检查所有参与者的视敏度，对比敏感度，视觉辨别能力和眼内散射。还使用驾驶模拟器测试了驾驶性能。为了研究视觉参数与驾驶性能之间的关系，使用了相关分析和回归模型。白内障驾驶员表现出明显的视觉功能受损（p <0.05），其客观散射指数（OSI）比对照组大3.5倍。白内障驾驶员的驾驶性能也显着变差（p <0.05），这反映在车道保持性的显着恶化上。相关分析表明，驾驶性能与所研究的所有视觉参数之间存在显着关联。最后，回归模型显示OSI是驾驶性能的最佳预测指标，占其方差的51.3％。存在白内障时，视觉功能和驾驶性能会明显下降。
更新日期：2020-01-15
中文翻译：
眼内散射可预测老年人白内障驾驶性能。
白内障会限制一个人安全地执行与视觉有关的任务的能力，从而影响老年人的生活质量。本研究通过研究哪些视觉参数对于预测有无白内障和无白内障的老年驾驶员的驾驶性能可能很重要，从而确定了视觉功能与驾驶之间的关系，并确定在老年驾驶员的评估程序中是否应考虑眼内散射的客观测量。这项横断面研究总共涉及20位年龄较大的驾驶员（10名双侧白内障患者和10名对照受试者）。检查所有参与者的视敏度，对比敏感度，视觉辨别能力和眼内散射。还使用驾驶模拟器测试了驾驶性能。为了研究视觉参数与驾驶性能之间的关系，使用了相关分析和回归模型。白内障驾驶员表现出明显的视觉功能受损（p <0.05），其客观散射指数（OSI）比对照组大3.5倍。白内障驾驶员的驾驶性能也显着变差（p <0.05），这反映在车道保持性的显着恶化上。相关分析表明，驾驶性能与所研究的所有视觉参数之间存在显着关联。最后，回归模型显示OSI是驾驶性能的最佳预测指标，占其方差的51.3％。存在白内障时，视觉功能和驾驶性能会明显下降。
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