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The Z87+(plano lens) and Z87-2+(Rx lens) markings on safety glasses and goggles indicate that eyewear is compliant with ANSI Z87.1 High Impact and ANSI/ISEA Z87.1 industrial safety standard for eye protection. Safety eyewear meeting these criteria are used in a variety of industrial and personal applications.
Whether the safety lenses are Impact Rated or not, all prescription safety lenses must be in a frame marked Z87-2+ to be considered ANSI-compliant safety glasses. (In the previous Z87.1-2003 ANSI standard, this marking was Z87-2.) â Dr. Heiting.