Specifications: CR-39 Resin Progressive Photochromic Lenses

Coating: AR/HMC/AS/UV400

The price is for 1 pair (2 lenses)

Color:Grey or Brown

Photochromic lenses are light-adaptive lenses that adjust themselves to different lighting conditions.

Trending inthe field of lens making,high tech improvements inprogressive lenses have created a smooth and consistent transition between differing lensstrengthswithin the lens itself. Also knownas multifocal or varifocal lenses,they offer all of theimprovements of the old out moded bi- or trifocal lenses without thedrawbacks of heavy weight, lens thickness and bulky transition lines their predecessors had.

For accurate ordering of lenses please see the How to Choose Lenses Indexcharts in this product page. If you require any additional assistance please contact us via our customer service email at [email protected].