http://www.framesdirect.com/landing/a/prescription-safety-glasses.html Do you need safety glasses for your job? If you work in a hazardous environment, you may be aware of the strict rules about protective eyewear set by the Occupational Safety and Health Administration (or OSHA.) OSHA uses the American National Standards Institute guidelines for what eyewear is appropriate for specific activities (like welding or handling chemicals.) ANSI has minimum performance requirements and puts frames and lenses through a series of tests - including a high velocity test conducted with a ¼ inch steel ball! Maybe you just need safety glasses for your hobbies or chores? Whether you need protective eyewear for professional or personal use, it's important that the glasses you choose meet or exceed ANSI standards. Then, you can be positive you have reliable protection against any hazards to your eyes. Safety rated frames will be marked with Z87 and safety lenses will display an etching from the lab that tested them. In the past, safety glasses could be bulky, uncomfortable, and possibly make the job you were trying to do even harder, but modern safety glasses are lightweight and provide excellent optics. Styling is now a key feature of protective eyewear - AND you can have safety glasses fitted with your prescription lenses. At FramesDirect.com we carry multiple brands of ANSI rated safety glasses and goggles, so you can find the the perfect pair for any activity. And if you buy prescription glasses in a safety frame, we will fit them with polycarbonate lenses that are ANSI rated. Polycarbonate is the most impact-resistant lens material. A full range of lens options are available including anti-fog and anti-scratch coatings and tinting. If you have any questions about what safety glasses are right for you, one of the expert opticians at FramesDirect.com would be happy to help.