*CR607 products fade back to clear 2 minutes faster. Claim is based on tests across materials on gray lenses, being the most popular colour, fading back to 70% transmission @ 23°C.
**CR607 products activate to a category 3 darkness 15% faster. Claim is based on tests across materials on gray lenses, being the most popular colour, achieving 18% transmission @ 23°C.
***Harmful blue light is calculated between 380nm and 460nm, across materials and colours.
****Based on achieving the highest weighted composite score among main everyday photochromic lenses across measurements of key photochromic performance attributes weighted by their relative importance to consumers. The survey and analysis used to measure attribute relative importance was conducted by an external research agency, in France, Italy, UK & US in 2019.