A lens like no other, camouflaging and sealing off the edge of your eyeglass lenses while matching the color of your frame. A must for all prescriptions higher than a + or -2 Seals off all light bouncing from the edges for better vision. Makes transitions and photo chromatic lens get darker faster but not losing scattered light thru the edges. Children and Adults can have their favorite colors edge coated on to the edges of their lens.