
TRANSITIONS® GEN S™
TRANSITIONS® GEN S™, the ultra-dynamic lenses designed to serve the dynamic of life with faster clear to dark and dark to clear, for you to experience a better vision with ever-changing rhythm of life.
Recommended For
Wearers who are looking for the most responsive and dynamic lenses that adapt to changing light conditions.
TRANSITIONS® GEN S™
Our Perfect Everyday Lens

Gen Speed™: Ultra-Responsive to Light
The fastest dark lens in the clear to dark photochromic category. It is fully clear indoors and darkens in seconds¹ outdoors. It is ultra-responsive to light, reaching category three levels of darkness² and fading back in around two minutes³. It also has improved long-lasting photochromic performance vs Transitions GEN 8⁴.

Gen Style™: Spectacular Colour Palette
Comes in eight exclusive colours, including a brand-new addition: Transitions® GEN S™ Ruby. All colors have been optimised to be true to tone at all times, offering vibrant tints regardless of the light environment. While being fully clear indoors, and beautifully colored outdoors, it provides you endless possibilities of pairing to complement any look.

HD vision at the speed of your life
Transitions® GEN S™ offers better vision quality, faster to ensure a continuous visual experience in harmony with varied and changing light environments. Thanks to its responsiveness to light, it provides a 39% faster vision recovery from intense bright lights vs clear lenses⁵.
1. For polycarbonate & CR39 lenses across colours achieving 18% transmission at 23°C
2. For grey polycarbonate lenses, compared to the previous generation.
3. For grey polycarbonate & CR39 lenses with premium anti-reflective coating fading back to 70% transmission @ 23°C.
4. For grey CR39 & polycarbonate lenses, compared to the previous generation.
5. Sources:
A – Subject-masked cross-over randomized controlled investigation performed in 2023 at the University of Georgia, on 30 healthy participants (19.2 ±1.3 years). Testing light stress (discomfort and disability glare, photostress recovery) with the clear and darkest states of Grey GEN S AR coated lenses compared to clear AR-coated control lenses. Principal Investigator Prof Billy R. Hammond. Manuscript ready for submission in Journal of Optometry. Harth JB, Wysocky CJ, Hammond BR, Renzi-Hammond LM, Using New Photochromic Spectacle Lenses to Attenuate Light Stress in Healthy Adults.
B – Subject-masked cross-over randomized controlled investigation performed in 2023 at the University of Murcia, on 10 healthy pre-trained participants (29.5 ±4.01 years). Testing contrast sensitivity during fade-back with Grey GEN S AR-coated lenses compared to Grey Gen8 AR-coated lenses. Principal Investigator Prof Pablo Artal. Accepted abstract at ARVO 2024. Duarte-Toledo R, Mompeán J et al., A new photochromic lens improves contrast sensitivity during fade-back. Manuscript in preparation.
Disclaimer
1. Tested on Grey GEN S 1.6 index lenses with premium AR coating compared to clear 1.6 index lenses with premium AR coating.
2. Tested on Grey GEN S 1.6 index lenses with premium AR coating compared to Grey Transitions GEN8 1.6 index lenses with premium AR coating.
* Vision quality improved in challenging light conditions, notably in the transition from a bright to a darker environment (source B), in bright to very bright light situations (source A), or in low light with peaky stray light (source B).