The Trivex lens material, is a great substitute for polycarbonate in certain circumstances. Trivex material has a higher ABBE value than polycarbonate, which offers similar strength as polycarbonate, but with less distortion ("chromatic aberration"). The Trivex Progressive lens is available in this range: -6.00 to +4.00 sphere, -3.00 to +3.00 cylinder, and up to +3.00 add. However, if your prescription exceeds -/+6.00, you should consider a high index 1.67 lens or Varilux Physio Trivex lens in order to minimize lens weight and thickness.
All Crystal Vision Lenses are made in the U.S., to exacting specifications, in an Essilor laboratory, and we are able to offer them at a great price point. This lens is a good choice for corrections up to +/-6.00, and it is available with a variety of options such as Transitions, UV protection, sunglasses or fashion tint, standard Anti-Reflective coating, and the top-quality Crizal Alize and Crizal Avance coatings. All of our lenses come with our Perfect Lenses Guarantee.