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immediate downloadReleased: 2020-02-04
BS EN ISO 8596:2018+A1:2020
Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation
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| Standard number: | BS EN ISO 8596:2018+A1:2020 |
| Pages: | 20 |
| Released: | 2020-02-04 |
| ISBN: | 978 0 539 01156 2 |
| Status: | Standard |
DESCRIPTION
BS EN ISO 8596:2018+A1:2020
This standard BS EN ISO 8596:2018+A1:2020 Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation is classified in these ICS categories:
- 11.040.70 Ophthalmic equipment
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.