How do FL Sun TheraSpecs work?

FL-Sun™ will be your new favorite sunglasses lens and will take extra care of your eyes when you go outside. It uses the power of FL-41, with enhanced filtering from 480-520nm with a dark, polarized lens so you have maximum protection against bright sunlight and outdoor glare.  FL-Sun is the perfect option when you’re on the go, whether you are light sensitive or if you just want an awesome pair of everyday sunnies.