The next step in lightweight, our Hi-Index 1.70 lenses have built-in UV protection and automatically anti-reflective coated. Available in single vision sperical and single vision aspherical, the lens design offers wearers a most stable and natural viewing experience. The ultimate high index material offers patients with higher prescriptions and uncompromised visual clarity in the thinnest, lightest and most fashionable lenses available anywhere in the world. The 1.70 refractive index combined with an unparalleled Abbe Value of 36 transforms even plastic lenses into an optically superior lens option.