DIN EN ISO 8596/A1 - DRAFT Draft Document - 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

standard by DIN-adopted European-adopted ISO Standard, 03/01/2019