Photochromic lenses are optical lenses that darken on exposure to specific types
of light of sufficient intensity, most commonly ultraviolet (UV) radiation. In the ...
Dr. Gary Heiting outlines a buyer's guide to photochromic lenses (including
Transitions lenses) for eyeglasses and sunglasses that darken automatically ...
Mar 11, 2015 ... We get asked a lot about how our photochromic lenses stack up with Transitions.
® Well we wanted to know the answer to that as well, so in this ...
Discover Transitions Optical photochromic lenses and glasses. Get adaptive
lenses and designer sunglasses for UV protection from Transitions.
Photochromatic lenses such as those made by Transitions Optical are clear (or
nearly clear) indoors and darken automatically in outdoor sunlight. They provide
Feb 27, 2016 ... A simple explanation of how photochromic (light-sensitive) eyeglass lenses
darken in the light and lighten in the dark.
Photochromic Lenses Explained - A Guide To The Advantages & Disadvantages
of Photochromic Lenses: Click Here>
Glass photochromic lenses unlike plastic lenses have high index glass bifocals
fused into the photochromic lens blank. They are not able to make these higher ...
Most advanced Photochromatic lenses available including Transition. Photo-
chromatic lenses are lenses that adjust to the amount of Ultra Violet (UV) light ...
Photochromic lenses were originally developed in the 1960's and made from
glass. They worked a bit like pieces of old-fashioned, photographic film.