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BSI
BS 7394-2:2007

BS 7394-2:2007

Current

Current

The latest, up-to-date edition.

Complete spectacles Specification for prescription spectacles

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-08-2007

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Definitions
4 Lens characteristics
5 Frame characteristics
6 Mechanical characteristics
7 Marking and instructions for use
Annexes
Annex A (informative) Recommendations on mounting, material
                      and surface quality
Annex B (informative) Classification of lenses
Annex C (normative) Lens retention test
Annex D (normative) Test for enhanced robustness lenses
Annex E (normative) Test for lenses of increased robustness
Bibliography

Defines requirements for complete spectacles incorporating a pair of prescription lenses.

1.1 This Part of BS7394 specifies requirements for complete spectacles incorporating a pair of prescription lenses. 1.2 This Part of BS7394 is not applicable to the following: ready-to-wear spectacles (see 3.2 and also BSEN14139); spectacles to be used for eye protection (these spectacles are specified in BSEN166) or spectacles intended for use in high activity or contact sports; spectacles without optical power to be used as non-prescription sun glare eye protectors (these spectacles are specified in BSEN1836). 1.3 This Part of BS7394 defines several terms that may be used when dispensing or which will help in describing the numerical attributes of various lens characteristics. It also includes a lens retention test which has been developed by the Association for Consumer Research (ACRE) with the assistance of the Federation of Manufacturing Opticians (FMO), the Department of Trade and Industry and the Department of Health. 1.4 This part of BS7394 is applicable to a product at the point of supply to the intended wearer. NOTE AnnexA contains recommendations for the mounting of lenses and on material and surface quality characteristics that are subjective and which, therefore, cannot be specified.

Committee
CH/172
DevelopmentNote
Supersedes BS 7394-2(1994) and 07/30082138 DC. (08/2007) Reviewed and confirmed by BSI, August 2012. (07/2012)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Current
Supersedes

BS EN 1836:2005 Personal eye-equipment. Sunglasses and sunglare filters for general use and filters for direct observation of the sun
BS EN ISO 13666:2012 Ophthalmic optics. Spectacle lenses. Vocabulary
BS 2738-3(2004) : 2004 SPECTACLE LENSES - PART 3: SPECIFICATION FOR THE PRESENTATION OF PRESCRIPTIONS AND PRESCRIPTION ORDERS FOR OPTHALMIC LENSES
BS 3521-2:1991+A1:1996 Terms relating to ophthalmic lenses and spectacle frames Glossary of terms relating to spectacle frames
BS EN ISO 7944:1998 Optics and optical instruments. Reference wavelengths
IEC 60050-845:1987 International Electrotechnical Vocabulary (IEV) - Part 845: Lighting
BS ISO/CIE 10527:1991 CIE standard colorimetric observers
BS EN 166:2002 Personal eye protection. Specifications
BS EN ISO 14889 : 2013 OPHTHALMIC OPTICS - SPECTACLE LENSES - FUNDAMENTAL REQUIREMENTS FOR UNCUT FINISHED LENSES
BS ISO 10526 : 2007 CIE STANDARD ILLUMINANTS FOR COLORIMETRY
BS 2738-1:1998 Spectacle lenses Specification for tolerances on optical properties of mounted spectacle lenses
BS EN ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
BS EN ISO 8980-4:2006 Ophthalmic optics. Uncut finished spectacle lenses Specifications and test methods for anti-reflective coatings
BS EN 168:2002 Personal eye-protection. Non-optical test methods
BS EN ISO 8980-3:2013 Ophthalmic optics. Uncut finished spectacle lenses Transmittance specifications and test methods
BS EN ISO 12870:2014 Ophthalmic optics. Spectacle frames. Requirements and test methods
BS 3521-1:1991 Terms relating to ophthalmic lenses and spectacle frames Glossary of terms relating to ophthalmic lenses
BS EN 14139:2010 Ophthalmic optics. Specifications for ready-to-wear spectacles

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Hardcopy - English
PDF - English
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