Wesemann W, Heinrich S P, Jägle H, Schiefer U, Bach M
, Grimmelshausenstr. 9, 50996, Köln, Deutschland.
Klinik für Augenheilkunde, Universitätsklinikum Freiburg, Medizinische Fakultät, Albert-Ludwigs-Universität Freiburg, Freiburg, Deutschland.
Ophthalmologe. 2020 Jan;117(1):19-26. doi: 10.1007/s00347-019-0943-x.
Recently, three international norms (ISO) for visual acuity assessment were revised. The DIN EN ISO 8596:2018 stipulates the Landolt C eye chart as the standard optotype and specifies display characteristics. An informative annex lists clinical optotypes for the first time. These include the ETDRS chart, Snellen chart and pediatric optotypes; however, these clinical optotypes do not have the same status as the Landolt C chart, since even with identical font size and stroke width they may differ in recognizability. The technical report ISO/TR 19498:2015 complements DIN EN ISO 8596. A scientifically appropriate procedure is described, which enables a quantitative correlation of clinical optotypes with the Landolt C chart. The DIN EN ISO 10938:2016 describes the required optical quality of optotypes. For the first time, electronic devices are explicitly approved for standardized visual acuity tests. Consequently, according to this amendment electronic devices may be used for acuity assessment for ophthalmological expert opinions according to DIN 58220, part 3.
最近，三项视力评估的国际标准（ISO）进行了修订。DIN EN ISO 8596:2018规定兰多尔特C型视力表为标准视标，并规定了显示特性。一个资料性附录首次列出了临床视标。这些包括ETDRS视力表、斯内伦视力表和儿童视标；然而，这些临床视标与兰多尔特C型视力表的地位不同，因为即使字体大小和笔画宽度相同，它们在可识别性上也可能存在差异。技术报告ISO/TR 19498:2015对DIN EN ISO 8596进行了补充。描述了一种科学合理的程序，该程序能够使临床视标与兰多尔特C型视力表进行定量关联。DIN EN ISO 10938:2016描述了视标的所需光学质量。电子设备首次被明确批准用于标准化视力测试。因此，根据这项修订案，电子设备可用于根据DIN 58220第3部分进行眼科专家意见中的视力评估。
