Although many basic lenses have been tinted with a resistant coating, anti-scratch coating is much effective which is more practical for active kids.Anti- coating can make the lenses even more resistant aganist scratch.Actually anti-scratch coating is an additional minimal expense when you are ordering prescription eyeglasses, what's more it is well worth the investment. Although no lenses can really provide a scratch proof, anti-coating lenses can generally last a little longer. Know more on cheapprescriptionglasses.