Michael Ralph, van Rijn Laurentius J, van den Berg Thomas J T P, Barraquer Rafael I, Grabner Günther, Wilhelm Helmut, Coeckelbergh Tanja, Emesz Martin, Marvan Patrik, Nischler Christian
Barraquer University Institute, Barcelona, Spain.
Acta Ophthalmol. 2009 Sep;87(6):666-71. doi: 10.1111/j.1755-3768.2008.01326.x. Epub 2009 Sep 11.
To study the relationship between lens opacity and intraocular straylight, visual acuity and contrast sensitivity.
We investigated 2422 drivers in five clinics in different European Union (EU) member states aged between 20 and 89 years as part of a European study into the prevalence of visual function disorders in drivers. We measured visual acuity [Early Treatment Diabetic Retinopathy Study (ETDRS) chart], contrast sensitivity (Pelli-Robson chart) and intraocular straylight (computerized straylight meter). Lens opacities were graded with the Lens Opacities Classification System III (LOCS) without pupillary dilation. Participants answered the National Eye Institute Visual Functioning Questionnaire - 25.
Intraocular straylight was related more strongly to LOCS score than to both visual acuity and contrast sensitivity. Visual acuity and contrast sensitivity were correlated to each other well, but to intraocular straylight to a much lesser extent. Self-reported visual quality was best related to contrast sensitivity; night driving difficulty was best related to visual acuity.
Straylight is found to have added value for visual function assessment in drivers, whereas if visual acuity is known contrast sensitivity has limited added value.
研究晶状体混浊与眼内杂散光、视力及对比敏感度之间的关系。
作为一项关于欧盟成员国驾驶员视觉功能障碍患病率的欧洲研究的一部分，我们在不同欧盟成员国的五家诊所对2422名年龄在20至89岁之间的驾驶员进行了调查。我们测量了视力[早期糖尿病视网膜病变研究（ETDRS）视力表]、对比敏感度（佩利 - 罗布森视力表）和眼内杂散光（电脑化杂散光仪）。在不散瞳的情况下，使用晶状体混浊分类系统III（LOCS）对晶状体混浊进行分级。参与者回答了美国国立眼科研究所视觉功能问卷 - 25。
眼内杂散光与LOCS评分的相关性比与视力和对比敏感度的相关性更强。视力和对比敏感度之间相关性良好，但与眼内杂散光的相关性程度要小得多。自我报告的视觉质量与对比敏感度的相关性最佳；夜间驾驶困难与视力的相关性最佳。
发现杂散光对驾驶员视觉功能评估具有附加价值，而在已知视力的情况下，对比敏感度的附加价值有限。
