Overview
ISO 7998:2005 - Ophthalmic optics - Spectacle frames - Lists of equivalent terms and vocabulary provides a standardized vocabulary for spectacle frame parts and construction. The second edition (2005) defines commonly used terms and gives lists of equivalent terms in multiple languages - English, French, Russian, German, Italian, Spanish, American English, Japanese (with phonetic transcription) and Chinese - to support consistent technical communication across the ophthalmic optics and eyewear industries.
Key topics and requirements
- Terms and definitions: Clear, authoritative definitions for components and features of spectacle frames (scope limited to vocabulary; no technical performance specifications).
- Multilingual equivalence lists: Mapped terminology across the included languages to reduce ambiguity in design, manufacturing and documentation.
- Frame types covered: Plastic frames and natural organic-material frames, metal frames, and combination frames (including Type A and Type B constructions).
- Special constructions: Vocabulary for rimless and semi-rimless mounts.
- Detailed parts vocabulary: Sidepieces (temples), joints (hinges), types of lugs, pads (nosepads) and other specific frame parts.
- Measurement references: Terms related to frame measurement, including the measuring system defined in ISO 8624.
- Formers and templates: Terminology for formers used in frame manufacture.
- Publishing and reproduction: The standard permits reproduction of its terms and definitions for educational or implementation use, provided they are unmodified and the source is cited.
Applications
- Standardizes technical documentation, assembly instructions, catalogs and CAD libraries for eyewear designers and manufacturers.
- Supports accurate product labeling and multilingual user manuals for international markets.
- Aids opticians, optometrists and eyewear retailers in consistent terminology for fitting, repair and sales.
- Useful for translators and regulatory bodies to ensure precise cross‑language communication in procurement, certification and compliance.
- Serves educational and training materials within optics programs and company onboarding.
Who should use ISO 7998:2005
- Eyewear and spectacle frame manufacturers and designers
- Optical laboratories and fitting/repair technicians
- Standards committees and regulatory authorities in ophthalmic optics
- Technical writers, translators and marketing teams preparing multilingual materials
- Educational institutions teaching ophthalmic optics and eyewear technology
Related standards
- ISO 8624 - Frame measurement system referenced by ISO 7998 for consistent dimensional terminology.
Keywords: ISO 7998:2005, spectacle frames, ophthalmic optics, vocabulary, eyewear terminology, multilingual terms, ISO 8624, frame measurement.
