safety prescription glasses are a significant innovation . Many sectors have accepted the importance of safety specs for eyes protection. Engineers, Dentists, Doctors, Construction companies, Lab Technicians,.. need prescription Safety glasses or nonprescription. Safety glasses are CSA and ANSI approved. Call PSN Vision today (647-891-2103) to place your order by sending your prescription. Sara Loshab(Registered Optician) will help you to find the best lenses according to your needs for your Safety Glasses. Safet Lenses are available in UV protection, Transition, Polarized, Sunglasses safety.