Transition lenses: Protect your eyes from UV rays

Reviewed by Dr. Justin Asgarpour

Transitions® lenses block 100% of harmful ultraviolet (UV) rays. They regulate light passing through the lens and reaching your eyes. These lenses stay clear when you’re away from the sun, and automatically turn dark each time you’re exposed to natural brightness. That means you don’t need to switch between your glasses and sunglasses whenever you go inside and outside for short periods of time.

Features of Transitions® lenses

Transitions® are the leading brand of photochromic lenses, also known as light-adaptive lenses, variable tint lenses, and photo sun lenses. Transitions® are ideal to be used when frequently moving from indoors to outdoors, and even in the car.

Photochromic technology

Photochromic lenses easily adjust from clear to dark. They are fully clear indoors and at night, so you can wear them as your regular glasses.

UV Protection

Exposure to UV light activates your lenses to darken, blocking 100% of UVA and UVB rays, so you can see clearly outdoors.

Blue Light Protection

Transitions® lenses can help protect your eyes from straining and relieve your eyes from fatigue.*

Considering the benefits and
potential drawbacks of Transitions® Lenses

Transitions® lenses can be added to any pair of glasses. With their adaptability into any pair of glasses frames, these lenses will have you covered any time of day. Take a look at some of the advantages and limitations of photochromic lenses and see if they are the right choice for you.





You can wear them all the time as your regular glasses. These glasses automatically adapt to changing light conditions. You can use them indoors and outdoors and in high or low brightness environment.

May take a bit longer to fade back from dark to clear in cold weather. Transitions® lenses are more responsive on a sunny day in a warm climate than a cold climate, approximately five degrees Celsius and lower.*

UV Protection

You’ll get complete and constant protection against harmful UV rays. These lenses absorb and block 100% of UVA and UVB rays, making them a UV protection solution that you can count on.

You may want to keep a pair of sunglasses in the car if you spend a lot of time driving. Your windshield has UV protection, which blocks UV rays from activating these lenses. However, they’ll still work if you drive a convertible.


You can easily move from indoors to outdoors without having to swap your frames. Benefitting from clear vision and protection wherever you are.

Transitions® lenses could take a few minutes to darken and return to their clear state.


Your eyes may be more comfortable with Transitions® lenses, especially if you’re light sensitive. They protect your eyes in brighter outdoor conditions, so your eyes can see comfortably without struggling to reduce excess light.

For extended periods of screen time, consider blue light blocking glasses. They increase the comfort of your eyes during long hours of digital screen time.

Lens Type

You can wear them with any glasses prescription. They adapt to match your lifestyle at any age. You can easily transform your single vision or progressive glasses to transition glasses.

Not suitable for bifocal glasses.

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Top 3 FAQs about Transitions® lenses

You can wear transition glasses for reading outdoors and indoors, as they are designed to tint in the sun and turn to clear indoors. You can enjoy great vision and UVA/UVB protection without needing to switching glasses.

Transitions® lenses are as clear as normal lenses indoors. These lenses darken when they detect UV light, which is present outdoors when you’re not exposed to direct sunlight. Your lenses may become tinted on a cloudy day, depending on the amount of UV radiation present.

Transitions® lenses will provide the same level of protection against UV rays as a pair of dedicated dark sunglasses. You can rely on them in most places to see comfortably in any lighting conditions including outdoor activities.

However, if you spend long periods of time in high-glare conditions, a pair of polarized sunglasses would be the recommended choice for activities at the beach, water, snow and road.

If you spend a lot of time driving, you may consider keeping a pair of polarized sunglasses in the car. Wearing Transitions® lenses behind your windshield, which blocks UV rays, will prevent these lenses from darkening.

2,000+ styles starting at $9. Progressive lenses, blue light glasses, and more.