XTRActive Polarized: the only and best ever polarized photochromic lenses.


  • Compared to clear to dark photochromic lenses.

  • Source: EcoOptics Limited - Prof. Nicholas Roberts, Quantitative study evaluating the visual benefits of the polarization properties of lenses compared to similar non-polarized lenses, 2019/2020.

  • Based on tests across materials on grey lenses @ 23°C, using ISO 12312-1 standard.

  • Based on tests on polycarbonate grey lenses, up to 10% darker than the previous generation @ 23°C and up to 5% darker @ 35°C.

  • Based on tests across materials on grey lenses, achieving transmission below 45% @ 23°C behind a standard windshield. The lens achieves a polarization efficiency of 30% behind the windshield, which is not classified as being “polarized”.

  • Blocks 34% of harmful blue light indoors. Protection from harmful blue light (380nm-460nm) at 23°C among polycarbonate and 1.5 grey lenses in the clear to extra dark photochromic category.

  • Based on tests across materials on grey lenses @ 23°C. “Harmful blue light” is calculated between 380nm and 460nm.

  • Up to 2x faster to fade back. Based on tests on polycarbonate grey lenses compared to the previous generation, fading back to 65% transmission @ 23°C.

  • Block up to 34% of harmful blue light indoors. "Harmful blue light” is calculated between 380nm and 460nm.

  • Tested on grey lenses across materials at 23°C outdoors achieving using Transitions Optical's standard testing method.