The company is constantly trying to outdo itself and five years of research by Transitions Optical has gone into achieving this. The outcome is that the company has fully reinvented the photochromic system, allowing for improvement across all performance attributes, with no compromise.

Signature GEN 8 also blocks 100% UV, filters harmful blue light indoors and out, and provides ideal protection against light sensitivity. With seven colours in the range, there is a wide choice to personalise any frame and suit individual preference styles. Wearers’ tests conducted in the US nationwide in the first quarter of 2019 showed that 9 out of 10 love the product.

It must be noted that photochromic performance is influenced by temperature, UV exposure and lens material. While CR607 products activate to a category 3 darkness 15% faster than the previous generation of lenses, this claim is based on tests across materials on grey lenses, being the most popular colour in this product category, achieving 18% transmission @ 23°C. The claim that CR607 products fade back to clear two minutes faster is also based on tests across materials on grey lenses, fading back to 70% transmission @ 23°C.