At Eyelgassdirect.com our Progressive No-Line CR39 Plastic Lenses are manufactured using the same high quality CR39 material as our standard lenses.  Our Progressive lenses are of aspheric (flatter) design, incorporating a distortion-free distance zone with a smooth intermediate transition to a wide reading area. 

Our standard prescription eyeglasses are fabricated using the highest grade optical quality plastic lenses. Standard plastic, with its high grade optical qualities, can also be tinted darker than polycarbonate. Although standard plastic is not manufactured with UV and scratch resistant coatings, we can add these coatings at no additional cost to you.  Recommended for prescriptions from +3.00 /-4.00.