Uvijls A, Baets R, Leroy B P, Kestelyn P
Department of Ophthalmology, Ghent University Hospital, Belgium.
Bull Soc Belge Ophtalmol. 2001(282):71-7.
In this study different methods for determining the mesopic visual acuity in candidates for driving licenses group 2 are presented (Royal Decree, 1998, European norms). Results of normal subjects are compared. Depending on the method used, visual acuity obtained under mesopic conditions, with an illuminance of 1 lux, showed a mean ranging from 0.5 to 0.65, which is clearly above the legal norm of 0.2. A comparative study of the three published official norms demonstrates that the stringent norms of 1966 do not match those of 1988 and 1998, resulting in a wider margin of acceptability, to the advantage of the candidate.
本研究介绍了用于确定2类驾驶执照申请者中值视力的不同方法（皇家法令，1998年，欧洲规范）。对正常受试者的结果进行了比较。根据所使用的方法，在1勒克斯照度的中值条件下获得的视力平均范围为0.5至0.65，明显高于0.2的法定标准。对三项已发布的官方规范进行的比较研究表明，1966年的严格规范与1988年和1998年的规范不匹配，从而产生了更宽的可接受范围，这对申请者有利。
