ISO 10938:2016适用于图表投影仪和所有其他使用高对比度光学类型识别且设计用于一般用途的视力测量系统生成的光学类型的显示，包括打印在介质上的光学类型（不透明或用于透照）、电子生成的光学类型和通过光学投影生成的光学类型。

ISO 10938:2016 applies to displays of optotypes generated by chart projectors and all other visual acuity measurement systems that use recognition of high-contrast optotypes and that are designed for general use, including optotypes printed on media (either opaque or intended for transillumination), those generated electronically, and those produced by optical projection.