Knowledge Base

Photochromic lenses (such as the brand Transitions) are allowed by the CSA and ANSI standards, but whether or not the use of them would cause an additional safety hazard is something that must be determined with a site hazard assessment. Our program has begun offering basic photochromic safety eyewear “testers” for use during these hazard assessments, which we have received positive feedback for. In general, photochromic lenses have made significant improvements in transitions speeds for both darkening and lightening, and in most cases if the worker is not operating heavy machinery as they move from high sunlight to low light spaces, there should not be an issue.