Ophthalmic optics - Visual acuity testing - Standard and clinical optotypes and their presentation - Amendment 1 (ISO 8596:2017/DAM 1:2019); German and English version EN ISO 8596:2017/prA1:2019
Ophthalmic optics - Visual acuity testing - Standard and clinical optotypes and their presentation (ISO 8596:2017 + Amd.1:2019); German version EN ISO 8596:2018 + A1:2020— 18 стр.
