Automatically adapt to changing light faster than ever.
Best Everyday Lens
Recommended Frames for
Signature® GEN 8™️
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Defy the Glare
The only and best polarized photochromic lens***
Recommended Frames for
Transitions® XTRActive® Polarized™️
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Sunglasses that reduce glare and adapt to changing light, outdoors and in the car.
Tint automatically adapts to changing light to reduce glare from overcast conditions to bright sunlight outdoors, especially while driving.
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Why should I choose Transitions®?
Transitions® lenses are the top-performing photochromic lenses on the market. Transition lenses change more quickly than other photochromic lenses and activate up to a category 3 darkness outdoors. Plus, they pack the value of hassle-free comfort, versatility, and protection. Transition lenses are great if you are looking to make a single purchase because they offer the benefits of clear lenses, sunglasses, and blue-light blocking lenses all in one photochromic package. Zenni is proud to offer the best value for Transitions® lenses on the market. For more information about Transitions® lenses, visit https://www.transitions.com/en-us/.
Will temperature affect my
The molecules in photochromic technology work by reacting to UV light. However, temperature can affect the molecules’ reaction time. Colder temperatures mean molecules move more slowly, and it will take longer for transition lenses to adapt from dark to clear, even on sunny days. Warmer temperatures mean molecules speed up and become more reactive, meaning a faster fade back from dark to clear. Moving from sun to shade in warmer climates, your lenses will be quicker to detect the diminished UV rays and will lighten in color. Transitions® Signature® GEN 8™️ lenses are more responsive than previous generations: fully clear indoors, darker outdoors, and returning to clear indoors, faster than ever. For more information about Transitions® lenses, visit https://www.transitions.com/en-us/.
Are photochromic lenses good for your eyes?
Yes! All photochromic lenses offered at Zenni are great options for your general eye health. In addition to blocking 100% of UVA/UVB light, the adaptive, two-in-one nature of photochromic glasses reduces squinting and eye fatigue. For those looking to replace their sunglasses with a photochromic lens, we suggest choosing Transitions® XTRActive® Polarized™, which will also protect your eyes in the car by darkening while you drive and polarizing in direct sunlight for clearer sharper vision.
How can I properly maintain and clean my transitional glasses?
To preserve the longevity and performance of your transition glasses, clean them regularly with a soft, lint-free cloth. Don’t use abrasive substances or harsh chemicals on transition lenses. For a more thorough cleanse, use a mild lens cleaner, followed by drying with a clean cloth. Regular cleaning of your transition lenses not only guarantees crystal clear vision but also extends the lifespan of your eyewear.
Can I use transition lenses for sporting or active outdoor activities?
You bet! Our transition glasses are specifically designed to accommodate a broad variety of activities. Their swift adjustment to fluctuating light conditions makes them an excellent choice for all kinds of sports and outdoor activities. Whether you're a cycling enthusiast, adventure-seeking hiker, or golfing pro, transition sunglasses will provide you with a clear view and UV protection when you need it most.
Can photochromic lenses double as glasses that turn into sunglasses?
Absolutely! Photochromic lenses are a marvel of modern eyewear technology. Not only do they function as regular transition eyeglasses, but they also seamlessly darken into sunglasses when exposed to direct sunlight. With these high-tech lenses, you’ll no longer need to switch between prescription glasses and sunglasses. They’ll adjust automatically based on their exposure to UV light.
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*Transitions® Signature® GEN 8™ block at least 20% of harmful blue light indoors & over 87% of harmful blue light outdoors except Transitions® Signature® lenses style colors which block over 75% outdoors. “Harmful blue... light” is calculated between 380nm and 460nm. Transitions® XTRActive® Polarized™ blocks up to 34% of harmful blue light indoors and up to 90% of harmful blue light outdoors. “Harmful blue light” is calculated between 380nm and 460nm. Based on tests across materials on gray lenses at 23 °C. read more
**Transitions® XTRActive® Polarized™ lenses achieve a polarization efficiency of up to 90%. Based on tests across materials on gray lenses @ 23 °C, using ISO 12312-1 standard.
***In the clear to dark photochromic category.
****Based on tests across materials on gray 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”. read more
Transitions®, Transitions® Signature®, and XTRActive® are registered trademarks, and XTRActive® Polarized™, the Transitions® logo and Transitions® Light Intelligent Lenses™ are trademarks of Transitions® Optical, Inc. used... under license by Transitions® Optical Limited.