PRIZM is a new Oakley lens technology that fine tunes vision for specific environments. The lenses work to emphasize colors where the eye is most sensitive to detail, which in return, helps to enhance performance and safety. 24K Iridium eliminates 77% of ambient light and blocks 100% of UVA, UVB, and UVC light. Oakley's HD Polarized lenses block harmful glare without compromising clarity.