SIST EN ISO 8980-3:2022/kFprA1:2026

• Status: Not Published
• Public Enquiry End Date: 29-Jun-2025
• ICS: 11.040.70 - Ophthalmic equipment
• Technical Committee: VAZ - Healthcare
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 21-May-2026
• Due Date: 09-Jul-2026
• Completion Date: 22-May-2026
• Ref Project: EN ISO 8980-3:2022/FprA1 - Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods - Amendment 1 (ISO 8980 3:2022/FDAM 1:2026)

• Amends: SIST EN ISO 8980-3:2022 - Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods (ISO 8980-3:2022)
• Effective Date: 19-Jul-2023

Overview

SIST EN ISO 8980-3:2022/kFprA1:2026 (Ophthalmic optics – Uncut finished spectacle lenses – Part 3: Transmittance specifications and test methods – Amendment 1) is an amendment to the international standard for spectacle lens manufacturing. Developed by SIST in alignment with ISO and CEN technical committees, this standard defines specifications and testing criteria for transmittance properties of uncut, unmounted finished spectacle lenses, including the measurement and claims related to wavelength cut and solar radiation attenuation.

This amendment ensures harmonization with the latest measurement techniques, transmittance requirements, and uncertainty evaluation methods for ophthalmic lenses. The standard addresses practical considerations for both manufacturers and testing laboratories, fostering improved product consistency and regulatory compliance within the ophthalmic optics industry.

Key Topics

• Transmittance Claims:

  • Lenses may be marketed with specific claims about their ability to filter or cut certain wavelengths (wavelength cut).
  • The standard stipulates that for a lens claiming a wavelength cut at a nominated wavelength, measured spectral transmittance must be less than 5.0% at that point, and less than 1.0% from 280 nm up to 10 nm below the nominated wavelength.
  • UV irradiation testing is required to ensure ongoing performance after exposure.

• Uncertainty and Measurement Requirements:

  • All transmittance measurements must be conducted with well-defined uncertainties.
  • Measurement uncertainties must not exceed 2.0% absolute for values above 20%, 1.0% absolute for values between 5% and 20%, and 0.5% absolute for values below 5%, all at 95% confidence.
  • Measurements must be performed using spectrophotometers with a spectral bandwidth of no more than 2 nm and capable of a wavelength uncertainty within ±1 nm.

• Test Methods:

  • Procedures include using a plano lens of 2 mm thickness for uniformity and comparability.
  • Testing must be performed at the reference point with the incident light beam normal to the front surface.
  • The guidelines for evaluating measurement uncertainties reference ISO/IEC Guide 98-3 and ISO 18526-2.

• Factors Affecting Measurement:

  • Annex G addresses how lens thickness and spectrophotometer configuration can influence results.
  • Instrument variability and lens geometry are discussed as critical factors in achieving repeatable and accurate measurements.

Applications

• Ophthalmic Lens Manufacturing:
  Ensures that finished uncut spectacle lenses meet transmittance performance criteria for consumer safety and regulatory compliance. Manufacturers can use these specifications to standardize quality control processes and validate product performance claims.

• Testing Laboratories:
  Provides standardized methods and uncertainty parameters for laboratories performing spectral transmittance testing of ophthalmic lenses.

• Product Development:
  Helps R&D teams in designing lenses with specific wavelength-cut properties, particularly relevant for UV and blue light filtering products.

• Regulatory Compliance:
  Used by national and international regulatory bodies to assess the conformity of ophthalmic lenses with market requirements and safety directives.

Related Standards

• ISO 8980 Series:
  The parent series covers requirements and test methods for spectacle lenses, including physical and optical properties.

• ISO/IEC Guide 98-3:
  Guidelines for evaluating measurement uncertainty, essential for laboratory accreditation and quality assurance.

• ISO 18526-2:2020:
  Provides practical advice on measuring uncertainty in the testing of personal eye protection and ophthalmic lenses.

• EN ISO 8980-3:
  European adoption of the ISO standard for finished spectacle lens transmittance testing.

By incorporating SIST EN ISO 8980-3:2022/kFprA1:2026 into their practices, stakeholders in the ophthalmic optics industry can ensure precision in transmittance specifications, maintain product credibility, and meet global market expectations.

SLOVENSKI STANDARD
SIST EN ISO 8980-3:2022/oprA1:2025
01-junij-2025
Očesna optika - Nebrušena zglajena stekla očal - 3. del: Specifikacije za
prepustnost in preskusne metode - Dopolnilo A1 (ISO 8980 3:2022/DAM 1:2025)
Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance
specifications and test methods - Amendment 1 (ISO 8980 3:2022/DAM 1:2025)
Augenoptik - Rohkantige fertige Brillengläser - Teil 3: Transmissionsanforderungen und
Prüfverfahren - Änderung 1 (ISO 8980 3:2022/DAM 1:2025)
Optique ophtalmique - Verres de lunettes finis non détourés - Partie 3: Spécifications
relatives au facteur de transmission et méthodes d'essai - Amendement 1 (ISO 8980
3:2022/DAM 1:2025)
Ta slovenski standard je istoveten z: EN ISO 8980-3:2022/prA1
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
SIST EN ISO 8980-3:2022/oprA1:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN ISO 8980-3:2022/oprA1:2025

SIST EN ISO 8980-3:2022/oprA1:2025
DRAFT
Amendment
ISO 8980-3:2022/
DAM 1
ISO/TC 172/SC 7
Ophthalmic optics — Uncut finished
Secretariat: DIN
spectacle lenses —
Voting begins on:
Part 3:
2025-04-18
Transmittance specifications and
Voting terminates on:
test methods 2025-07-11
AMENDMENT 1
Optique ophtalmique — Verres de lunettes finis non détourés —
Partie 3: Spécifications relatives au facteur de transmission et
méthodes d'essai
AMENDEMENT 1
ICS: 11.040.70
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO 8980-3:2022/DAM 1:2025(en)

SIST EN ISO 8980-3:2022/oprA1:2025
DRAFT
ISO 8980-3:2022/DAM 1:2025(en)
Amendment
ISO 8980-3:2022/
DAM 1
ISO/TC 172/SC 7
Ophthalmic optics — Uncut finished
Secretariat: DIN
spectacle lenses —
Voting begins on:
Part 3:
Transmittance specifications and
Voting terminates on:
test methods
AMENDMENT 1
Optique ophtalmique — Verres de lunettes finis non détourés —
Partie 3: Spécifications relatives au facteur de transmission et
méthodes d'essai
AMENDEMENT 1
ICS: 11.040.70
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
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Website: www.iso.org
Published in Switzerland Reference number
ISO 8980-3:2022/DAM 1:2025(en)

ii
SIST EN ISO 8980-3:2022/oprA1:2025
ISO 8980-3:2022/DAM 1:2025(en)
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