Laboratory of Vision Sciences and Applications (LabVisGra), Department of Optics, Facultad de Ciencias, University of Granada, Avenida Fuentenueva s/n, 18071, Granada, Spain.
Sci Rep. 2021 Apr 26;11(1):8904. doi: 10.1038/s41598-021-88435-w.
In this study, we assessed the influence of moderate alcohol intake on binocular vision, vergence system and simulated driving performance by analyzing the interactions between visual deterioration and driving variables. Thirty young healthy subjects were recruited. For the analysis, we measured: visual function (visual acuity and stereoacuity), phorias and fusional reserves. Also, we checked Sheard's and Percival's criteria at near and far. The accommodative convergence/accommodation (AC/A) ratio was calculated and vergence facility was also obtained at near. A driving simulator was used to assess driving performance under natural conditions and after alcohol consumption with a breath alcohol content of 0.40 mg/l. Alcohol intake significantly reduced binocular visual performance and vergence function, except for vertical phorias, horizontal phoria at near and Sheard's and Percival's criteria at near. Driving performance parameters also presented a statistically significant deterioration after alcohol consumption. A statistically significant correlation was found between the deterioration in overall visual function and overall driving performance, highlighting the influence of the visual deterioration on the driving performance. Moderate alcohol consumption impairs binocular visual and simulated driving performances, implying a greater safety hazard. In addition, deteriorations in binocular visual function and vergence correlated with simulated driving impairment, which indicates that the deterioration of binocular vision due to alcohol consumption affects driving, thus reducing road safety.
在这项研究中，我们通过分析视觉恶化与驾驶变量之间的相互作用，评估了适量饮酒对双眼视觉、聚散系统和模拟驾驶性能的影响。招募了 30 名年轻健康的受试者。在分析中，我们测量了：视觉功能（视力和立体视锐度）、隐斜视和融合储备。此外，我们还检查了近点和远点的 Sheard 和 Percival 标准。计算了调节性集合/调节（AC/A）比率，并在近点获得了聚散灵活性。使用驾驶模拟器在自然条件下和在酒精摄入后（呼吸酒精含量为 0.40mg/l）评估驾驶性能。酒精摄入显著降低了双眼视觉和聚散功能，除了垂直隐斜视、近点水平隐斜视和近点的 Sheard 和 Percival 标准。驾驶性能参数在酒精摄入后也呈现出统计学上的显著恶化。整体视觉功能和整体驾驶性能的恶化之间存在统计学显著相关性，突出了视觉恶化对驾驶性能的影响。适量饮酒会损害双眼视觉和模拟驾驶性能，这意味着更大的安全隐患。此外，双眼视觉功能和聚散的恶化与模拟驾驶障碍相关，这表明由于酒精摄入导致的双眼视觉恶化会影响驾驶，从而降低道路安全。
