29/10/2025
Let’s bust one of the biggest myths in the PPE industry when it comes to prescription safety eyewear:
Many workers believe that any tough-looking pair of prescription glasses qualifies as protective eyewear.
Myth: A tough-looking pair of prescription glasses qualifies as protective eyewear.
Fact: Only eyewear with EN166 markings on both the lenses and the frame meets safety standards.
What to check:
✅ Lenses must be marked with EN166 to confirm optical and impact protection.
✅ Frame must also show EN166 to verify structural integrity.
✅ No markings? No compliance.
Marking on the frame:
• Identification of the manufacturer
• Number of the EN standard - EN166
• Fields of use (where applicable)
• Symbol for resistance to high speed particles (where applicable)
• Certification mark
Lenses must be marked with:
• Scale numbers (filters only)
• Identification of manufacturer
• Optical class
• Symbol for mechanical strength (where applicable)
• Symbol for non adherence of molten metal and resistance to penetration of hot solids (optional)
• Symbol for resistance to surface damage by fine particles (optional)
• Symbol for resistance to fogging (optional)
• Certification mark
uvex prescription safety eyewear guarantees full EN166 certification—clearly marked, fully protective, and legally compliant.
