Our 1.67 Super-Thin High Index Lenses, with a refractive index of 1.67, are substantially thinner and lighter than CR39 plastic and polycarbonate lenses all other that Opticians and Optometrists may sell as high index lens. They are manufactured with an aspheric (flatter) design as well as UV and scratch resistant coatings.

1.67 Super-Thin High Index Lenses are highly recommended for people who wear larger, rimless eyeglasses frames or who have smaller pupillary distances (i.e. less than 62 mm).

Prescription recommendation: (over +3.00/-3.00)