TS EN ISO 18369-1/A1

TS EN ISO 18369-1/A1 is an amendment to a contact-lens standard concerned with vocabulary, classification approach, and recommendations for labelling specifications in ophthalmic optics. Documents of this kind help manufacturers, clinicians, distributors, and users apply the same terms consistently and build a common language for how contact-lens characteristics are named and presented on labels.

Why contact-lens terminology matters

Because contact lenses are optical medical devices that sit directly on the cornea, details such as geometry, material structure, water content, wearing schedule, and design type strongly influence product behaviour and intended use. In general technical practice, terminology standardization helps prevent confusion between concepts such as daily disposable, reusable, extended wear, soft lenses, and rigid gas-permeable lenses. A classification system makes it easier to distinguish between product families with different properties, so technical documentation, catalogues, and labels become more intelligible.

What labelling recommendations are meant to achieve

Labelling recommendations are intended to support the consistent presentation of the key information needed to identify a lens. In general, such recommendations help make product name, lens type, package information, dimensional or optical parameters, and directions for use easier to understand at a glance. This A1 item is an amendment to the parent standard’s terminology and labelling framework; the core subject remains the same, but the exact clauses affected by the amendment are not detailed in this record.