195: Many of my patients work in the construction industry. I'm thinking of offering polycarbonate lenses instead of CR39 to those at risk of ocular trauma. Is this a good idea? -
Custom Extruded Acrylic & Polycarbonate Plastic
Polycarbonate lenses: Advantages and disadvantages | All About Vision
What are the disadvantages of polycarbonate lenses? | KOALAEYE OPTICAL – Koalaeye.com