Transitions lenses are designed to be worn indoors and to automatically adapt when outdoors to give you a more comfortable viewing experience while providing eye protection from damaging UV light.

Transitions performance sun lenses are specifically designed for outdoor activities to help enhance visual performance. Crafted with functionality in mind, Transitions performance sun lenses automatically adjust to optimize lens color and darkness in changing outdoor lighting conditions.
What is the "Magic" of Transitions lens technology?

Photochromic molecules are the "magic" technology inside each Transitions lens. As you experience different lighting conditions throughout your day, the molecules adapt by changing structure. This automatic change causes the lens to get darker, as well as return to be as clear as an ordinary, non-photochromic lens.

The molecules are triggered to change by exposure to specific wave-lengths of light. Original Transitions photochromic lenses are activated by UV light. This is why the lens activates when outdoors but not indoors. Transitions XTRActive lenses are activated by UV light as well as visible wavelengths of purple and blue light giving the lens slight activation indoors and increased activation behind the windshield of the car and even more activation outdoors.

The family of Transitions lens products continues to be the most advanced featuring photochromic lens technology and remains the best choice to improve vision by enhancing your ability to discern objects of varying size, brightness and contrast, giving you the gift of better sight every day and in any light condition.

Good Light In. Eye Fatigue Out.

In the fight to help eliminate glare and reduce eye strain, Transitions lenses are always working for you.

Low lighting conditions cause the eye to work overtime when seeing or reading and can contribute to sore, tired eyes or even headaches.

Bright lighting conditions elicit a universal reaction from the human eye; squinting. Squinting causes the pupil to constrict and is a natural attempt to block the amount of light entering the eye. This constriction of the pupil is one reason why eyes may feel strain or pain in bright light conditions.

Because photochromic lenses react to the amount of UV light exposure, Transitions lenses provide comfort and convenience by automatically adjusting to control the amount of light that reaches the eye.

Because the glass in car windshields blocks most UV rays, less than 1% of the available outdoor UV energy reaches the lenses of the driver. Traditional photochromic lenses just do not receive sufficient energy to provide significant darkening while driving.

For these situations, we offer an everyday lens solution, Transition® XTRActive™ lenses or, suggest drivers consider a second pair of sunglasses or a specialized product such as polarized Drivewear ® Transitions® SOLFX™ lenses. These lenses contain a specially designed photochromic dye that responds to both UV and natural (visible, clear, or white) light and can activate behind a windshield.