SIST EN ISO 8596:2018/A1:2020
(Amendment)Ophthalmic optics - Visual acuity testing - Standard and clinical optotypes and their presentation - Amendment 1 (ISO 8596:2017/Amd1:2019)
Ophthalmic optics - Visual acuity testing - Standard and clinical optotypes and their presentation - Amendment 1 (ISO 8596:2017/Amd1:2019)
2019-12-04 - not allocated for publication because of missing TC decision to skip FV.
Augenoptik - Sehschärfeprüfung - Normsehzeichen und klinische Sehzeichen und ihre Darbietung - Änderung 1 (ISO 8596:2017/Amd1:2019)
[Not available]
Optique ophtalmique - Mesure de l'acuité visuelle - Optotype normalisé et optotypes cliniques et leur présentation - Amendement 1 (ISO 8596:2017/Amd1:2019)
Očesna optika - Preskušanje ostrine vida - Standardni in klinični optotip in njuna predstavitev - Dopolnilo A1 (ISO 8596:2017/Amd1:2019)
General Information
- Status
- Published
- Public Enquiry End Date
- 19-May-2019
- Publication Date
- 11-Feb-2020
- Technical Committee
- VAZ - Healthcare
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 06-Feb-2020
- Due Date
- 12-Apr-2020
- Completion Date
- 12-Feb-2020
Relations
- Effective Date
- 01-Mar-2020
Overview
EN ISO 8596:2018/A1:2020 is the CEN-adopted amendment to ISO 8596 (2017) governing ophthalmic optics - visual acuity testing. It defines the presentation of standard and clinical optotypes (visual acuity characters) and refines scoring for clinical testing. Amendment 1 (ISO 8596:2017/Amd1:2019) was approved by CEN and published as EN ISO 8596:2018/A1:2020 (January 2020) and updates the test scoring procedure in Annex A.5.
Key topics and technical requirements
- Standard and clinical optotypes: Specifies the use and presentation of optotypes used in visual acuity charts (standardized characters, symbols or tumbling shapes for testing vision).
- Presentation requirements: Covers how optotypes should be presented to patients - order, spacing and sequence - to ensure reproducible visual acuity measurements (as defined in the main ISO 8596 document).
- LogMAR scoring: The amendment updates the scoring approach using the LogMAR visual acuity scale. Specifically, Annex A.5 replaces the previous paragraph with a rule that the sum of the values of all correctly called optotypes is subtracted from the LogMAR value of the top line of the chart; the resulting LogMAR value plus 0.1 corresponds to the assigned visual acuity for the test. This clarifies how individual correct responses influence the final LogMAR acuity value.
- Conformity and national adoption: As a CEN-endorsed amendment, it is intended for national standardization across CEN member bodies.
Applications and users
This amendment and the underlying ISO 8596 standard are essential for:
- Optometrists and ophthalmologists conducting routine and specialized visual acuity assessments.
- Clinical practices and hospitals standardizing vision testing protocols for diagnosis, monitoring and record-keeping.
- Manufacturers of visual acuity charts and diagnostic equipment, ensuring charts and software implement the correct optotype presentation and LogMAR scoring.
- Clinical researchers and trial sponsors who require consistent, reproducible visual acuity endpoints across sites.
- Regulatory and standards professionals implementing or auditing ophthalmic testing procedures.
Related standards
- ISO 8596:2017 - Visual acuity testing: base standard describing standard and clinical optotypes and presentation.
- EN ISO 8596:2018 - European adoption of ISO 8596:2017, amended by A1 (this document).
Keywords: EN ISO 8596:2018/A1:2020, ISO 8596, visual acuity testing, optotypes, LogMAR, ophthalmic optics, clinical optotypes, vision testing, optometry, ophthalmology.
Frequently Asked Questions
SIST EN ISO 8596:2018/A1:2020 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Ophthalmic optics - Visual acuity testing - Standard and clinical optotypes and their presentation - Amendment 1 (ISO 8596:2017/Amd1:2019)". This standard covers: 2019-12-04 - not allocated for publication because of missing TC decision to skip FV.
2019-12-04 - not allocated for publication because of missing TC decision to skip FV.
SIST EN ISO 8596:2018/A1:2020 is classified under the following ICS (International Classification for Standards) categories: 11.040.70 - Ophthalmic equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 8596:2018/A1:2020 has the following relationships with other standards: It is inter standard links to SIST EN ISO 8596:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 8596:2018/A1:2020 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2020
Očesna optika - Preskušanje ostrine vida - Standardni in klinični optotip in njuna
predstavitev - Dopolnilo A1 (ISO 8596:2017/Amd1:2019)
Ophthalmic optics - Visual acuity testing - Standard and clinical optotypes and their
presentation - Amendment 1 (ISO 8596:2017/Amd1:2019)
Augenoptik - Sehschärfeprüfung - Normsehzeichen und klinische Sehzeichen und ihre
Darbietung - Änderung 1 (ISO 8596:2017/Amd1:2019)
Optique ophtalmique - Mesure de l'acuité visuelle - Optotype normalisé et optotypes
cliniques et leur présentation - Amendement 1 (ISO 8596:2017/Amd1:2019)
Ta slovenski standard je istoveten z: EN ISO 8596:2018/A1:2020
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 8596:2018/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2020
EUROPÄISCHE NORM
ICS 11.040.70
English Version
Ophthalmic optics - Visual acuity testing - Standard and
clinical optotypes and their presentation - Amendment 1
(ISO 8596:2017/Amd1:2019)
Optique ophtalmique - Mesure de l'acuité visuelle - Augenoptik - Sehschärfeprüfung - Normsehzeichen
Optotype normalisé et optotypes cliniques et leur und klinische Sehzeichen und ihre Darbietung -
présentation - Amendement 1 (ISO Änderung 1 (ISO 8596:2017/Amd1:2019)
8596:2017/Amd1:2020)
This amendment A1 modifies the European Standard EN ISO 8596:2018; it was approved by CEN on 1 January 2020.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8596:2018/A1:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 8596:2018/A1:2020) has been prepared by Technical Committee ISO/TC 172
"Optics and photonics" in collaboration with Technical Committee CEN/TC 170 “Ophthalmic optics” the
secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2020, and conflicting national standards shall be
withdrawn at the latest by July 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
No
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