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What do you call glasses that turn dark in the sun?

What do you call glasses that turn dark in the sun?

Transition lenses, or photochromic lenses, are the lenses that darken in the sunlight and lighten in softer light or the dark.

Who should wear photochromic lens?

Photochromic glasses can be particularly good for children who are unlikely to be able to juggle two separate pairs of gasses – regular and sunglasses. It also helps their eye health from an early age by protecting them from the sun and UV rays.

Are photochromic lenses good?

Photochromic lenses are an excellent solution to guard against computer vision syndrome. Bonus: Photochromic lenses work just as well as regular sunglasses for outdoor use. They shield your eyes from harmful blue light exposure as well as 100% of the sun’s harmful ultraviolet rays.

Why are photochromic lenses designed for Variable tint?

Photochromic lenses: variable tint. Perfectly clear indoors, they are designed to quickly change into a darker shade in the sun and outdoors. Without us even realizing, they let in just the right amount of light in all situations: sunny, overcast, indoor activities… And the result: more eye protection and less fatigue in a single pair of glasses.

Do you need sunglasses to use photochromic lenses?

You can use photochromic lenses indoors and outdoors, and you do not need to have a pair of prescription sunglasses to complement your regular lenses. As long as you are outdoors, photochromic lenses will offer ongoing protection.

What are the different types of photochromic lenses?

There are many other kinds of photochromic lenses, all with their own tints and promises of quick transitions in appropriate lighting conditions. Check with your optometrist to see what brands are best for your vision and your budget. Photochromic lenses also come in sunglass form.

What happens to photochromic lenses in cold weather?

The nature of all photochromic lenses is that in cold once dark they return to greater light transmission very slowly if at all while reacting more quickly in warmer conditions. This said a snowshoe run end of day light had me seeing plenty fine even if the lenses were still dark as well in dimming overcast light.