ABO NOCE Practice Test

Safety lenses are specifically designed to minimize the risk of injury to the eyes from various hazards, including impact from flying objects or hazardous materials. The required thickness for safety lenses is set at 3mm because this thickness meets the standards for high-velocity impact resistance. This thickness helps ensure that the lens can absorb energy effectively and reduce the likelihood of shattering or cracking upon impact.

Specific regulations, such as those from the American National Standards Institute (ANSI), dictate that safety lenses must meet certain performance criteria, including thickness requirements, to ensure user safety in environments where eye protection is critical. At a thickness of 3mm, the lens can provide adequate protection while still allowing for clarity of vision, which is essential in safety eyewear.