Note the term “Resistant”, nothing is scratch proof. That said, scratch coatings are a definite plus, greatly enhancing the lenses ability to resist scratching. Other than stock lenses where the prescription is already in the lens, most scratch coatings are front surface only. Your lab can add either a standard, or in some cases a super tough back surface scratch coating at an additional charge.

Anti-Reflective (AR) Coatings reduce reflections inside the lens, enhancing colors, clarity and light coming through to the eyes. Lenses without AR lose from 8% to 18% of the light, detail and purity of colors because of these reflections depending on the index of refraction of the material. The higher the index, the more reflections! Ask for a demonstration of AR and non-AR side-by-side to "See" the difference! Today’s AR is a vast improvement to the coatings we used even a few short years ago. Various layers of coatings, sometimes including the newer, tougher scratch coatings, primer coats and hydrophobic coatings like Crizal have taken a good product and made it great. Plus, we’ve learned that we must have the correct combination of materials and coatings to work properly together. This enhancement must be demonstrated with good samples to really be able to show you the difference today's quality AR coatings like Crizalwill make.