DIN EN ISO 8596:2020-05 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
2020DIN EN ISO 8596:2020-05 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
2020DIN EN ISO 8596:2020 Ophthalmic optics - Visual acuity testing - Standard and clinical optotypes and their presentation (ISO 8596:2017 + Amd.1:2019) (includes Amendment :2020)
2018DIN EN ISO 8596:2018 Ophthalmic optics – Visual acuity testing – Normative and clinical visual signs and their presentation (ISO 8596:2017); German version EN ISO 8596:2018
2009DIN EN ISO 8596:2009 Ophthalmic optics - Visual acuity testing - Standard optotype and its presentation (ISO 8596:2009); English version of DIN EN ISO 8596:2009-10