What Are UV Rays?

Ultraviolet radiation can cause serious damage to the eyes. Edge Eyewear lenses filter dangerous UVA, UVB, and UVC rays for optimal safety.

UVA (315-380 nm) Although UVA rays are the least intense, they account for more than 90% of UV radiation reaching the earth and remain constant throughout the year. Exposure to high levels of this light without proper lens filtration may cause damage to all layers of the cornea.

UVB (280-315 nm) UVB rays are the main cause of sunburn and are strongest in the summer. Permanent retina or lens damage can result from exposure to high levels of this light without proper lens filtration.

UVC (180 -280 nm) The most harmful type of ultraviolet radiation comes from UVC rays. The ozone layer keeps most of the sun’s UVC radiation from reaching the earth, but some man-made UV sources, such as welders and cutting torches, do emit these hazardous rays. Exposure to high levels of this light without proper eye protection may result in photokeratitis, often referred to as “welder’s flash.”

All Edge Eyewear lenses contain light-reflecting compounds that scatter UV waves. This blocks 99.9% of ultraviolet radiation, which is the highest level of protection on the market.