BS EN ISO 8596:2018+A1:2020
Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation

Standard No.

BS EN ISO 8596:2018+A1:2020

Release Date

2020

Published By

British Standards Institution (BSI)

Latest

BS EN ISO 8596:2018+A1:2020

Scope

1   Scope This document specifies a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under photopic conditions for the purposes of certification or licensing. This document is neither intended as a standard for clinical measurements nor for the certification of blindness or partial sight. Other optotypes used for clinical investigations are described in Annex A for information.

BS EN ISO 8596:2018+A1:2020 history

• 2020 BS EN ISO 8596:2018+A1:2020 Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation
• 2018 BS EN ISO 8596:2018 Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation
• 2009 BS EN ISO 8596:2009 Ophthalmic optics - Visual acuity testing - Standard optotype and its presentation(ISO 8596:2009)
• 0000 BS EN ISO 8596:1996