Anti-Reflection Coat

This is the most important option you can add to any set of lenses regular or sunglass. A/R coat cancels the surface reflections and ghost images that float around on lense surfaces as your head moves under room lights or the xenon and halogen headlights you see at night. Not only is vision enhanced by at least 10% increase in light transmission but the lenses now do their job as if THEY WERE NOT EVEN THERE! And A/R coat improves sunglass lens performance.