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Ballistic eyewear is a form of glasses or goggles that protect from small projectiles and fragments. For the U.S. military, choices for such eye protection are listed on the Authorized Protective Eyewear List (APEL). [1] Ballistic eyewear including examples that meet APEL requirements are commercially available for anyone who wishes to buy it.
The U.S. civilian standard for protective eyewear was revised in 2010. The previous version from 2003 was organized by the type of protector. The Z87.1-2010 version is organized by the type of hazard such as droplet and splash, impact, optical radiation, dust, fine dust, and mist. [6]
The ANSI for eye protection is Z87.1, which gives a specific impact resistance rating to the eyewear. This standard is commonly used for shop glasses, shooting glasses, and many other examples of protective eyewear.
These safety sunglasses have a scratch resistant coating, block 99.9% UV, and meet ANSI Z87.1 and CSA Z94.3 standards. The only way to assess the protection of sunglasses is to have the lenses measured, either by the manufacturer or by a properly equipped optician.
The 1967 edition of ANSI Z49.1.7.2.2.10 specifies that "all filter lenses and plates shall meet the test for transmission of radiant energy prescribed in paragraph 6.3.4.6 of the Safety Code for Head, Eye and Respiratory Protection, USA Standard Z2.1-1959". [8]
The numbers on your eyewear are more important than you think—an optometrist tells us why. The post This Is What Those Numbers on Your Glasses Mean appeared first on Reader's Digest.