Safety Eyewear Glossary — Certus

Plain-English definitions of safety eyewear and EN 166 terms: field of use, impact ratings, lens materials, coatings and more.

Certus is a UK platform for managing prescription safety eyewear compliance to EN 166, covering hazard assessments, ordering, optician verification and certificate records. Operated by Certus Safety Ltd, registered in England and Wales, company number 17364362.