TS EN ISO 18369-1/A1

TS EN ISO 18369-1/A1 is Amendment 1 to TS EN ISO 18369-1, the standard concerned with vocabulary, classification system and recommendations for labelling specifications for contact lenses. This record represents an amendment document for the ophthalmic optics terminology framework; it is not a standalone base standard.

Why contact-lens terminology matters

In ophthalmic optics, contact lenses are described from several angles, including material form, intended use, design type and wearing schedule. Terminology standards help manufacturers, laboratories, clinicians and regulators use the same terms with the same meaning. In general technical context, a shared classification system also makes it easier to group lenses by common characteristics and compare them consistently.

What labelling recommendations are for

The core subject of this standard is consistency in the words used on contact-lens packaging, product descriptions and technical documentation. Labelling recommendations clarify how a product category should be identified, which key characteristics should be expressed and how information should be presented in a standardised way. Such documents do not define clinical performance by themselves; they provide a common language for product communication, cataloguing and technical comparison.

As an A1 amendment, this document modifies the parent standard rather than replacing it. The exact clauses or wording affected cannot be inferred from the title and abstract alone, but the subject remains the controlled use of terminology and classification for contact lenses.