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Q-marking is a manufacturer's traceability code stamped on lenses, frames, packaging, or device labels to identify the production line, material lot, and quality checks completed. The mark links a physical item to digital records for audits and recalls. In clinics and labs, Q-marking simplifies inventory control and verification. Clear codes support safety and consistent performance.
read more about q marking ...Manufacturers add engraved micro-marks, laser etching, or printed matrix codes at defined locations that do not disturb optics. Scanners or human-readable segments reveal batch, date, and process checkpoints. Staff record the code during receiving and before dispensing. The same data ties into complaint handling and service history.
These marks trace each lens through production and quality checks. They help confirm authenticity and track manufacturing batches. Technicians rely on them for inventory and troubleshooting. Clear labeling supports safety and consistency.
It speeds investigations when a defect appears and limits the scope of any recall. Labs track coating runs, curing profiles, and substrate lots with one code. Clinics verify authenticity for premium lenses or devices. Patients benefit from reliable replacements when needed.
Companies align codes with ISO labeling, UDI requirements for medical devices, and local regulations. Formats remain consistent across plants to avoid confusion. Validation confirms scanners and software decode correctly. Secure handling protects patient and supplier data.
No system is perfect, but layered features raise the barrier. Micro-engraving, hidden segments, and cryptographic tokens make copying harder. Supplier audits and incoming checks add another layer. Education helps staff spot anomalies.
Does Q stand for quality? Often it does in practice, but meanings vary by company.
Will it affect optical clarity? Placement avoids the viewing zone and does not change power.
Is it the same as UDI? UDI is a regulated identifier; Q-marking can include or reference it.
Varilux Engraving Identifiers. EssilorLuxottica. https://www.essilorpro.com/content/dam/essilor-pro/products/progressive-varilux/other/Varilux_Engraving_Identifiers.pdf. December 2023.
Shamir Invisible Markings. Shamir. https://shamir.com/wp-content/uploads/2021/09/Shamir_InvisibleMarkings.pdf. 2021.
Shamir Dispensing Guide (Online Only). Shamir. https://shamir.com/wp-content/uploads/2022/07/Shamir_Dispensing-Guide_Online-Only-1.pdf. 2022.
New Progressive Lens Engravings. Association of British Dispensing Opticians (ABDO). https://www.abdo.org.uk/wp-content/uploads/2020/04/New-Engravings-April-2020.pdf. April 2020.
HOYA Split Markings Chart. Association of British Dispensing Opticians (ABDO). https://www.abdo.org.uk/wp-content/uploads/2020/03/Hoya-split-markings-chart.pdf. 2020.