Abstract / scope
Specifies a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under daylight conditions for the purposes of certification or licensing.
ISO 8596:1994Withdrawn
Ophthalmic optics — Visual acuity testing — Standard optotype and its presentation
Optique ophtalmique — Mesure de l'acuité visuelle — Optotype normalisé et sa présentation