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 ...
Mar 11, 2015 ... We recently did an in depth post about the difference between Transitions® and
Zenni's photochromic lenses that you can check out here.
Read about the photochromic technology in Transitions Optical glasses. Our
photochromic Transitions lenses react to light and offer UV protection.
Compare Transitions Optical glasses online. Choose from Transitions Signature,
XTRActive, Drivewear and Vantage lenses for better vision.
Oct 1, 2015 ... Whether you purchase your next pair of lenses from www.UseMyFrame.Com or
not, this video is intended to help educate people make ...
Dec 8, 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>
Photochromic lenses were originally developed in the 1960's and made from
glass. They worked a bit like pieces of old-fashioned, photographic film.