What are photochromic lenses?
Photochromic lenses are those types of lenses that darken the sunglasses when you are exposed to the sunlight or UV light and when you return indoors it returns to the clear state.
Mainly photochromic lenses are that type of transition medium that conveniently switch from clear lens indoor to the sunglasses depth tint when you come to indoor and vice versa
It typically takes only 39 seconds to fully darken and mainly two to five minutes to return to its clear state. It work as a best replacement lens
How do photochromic lenses work?
Small tiny molecules of halide and chloride are embedded onto the photochromic lens which is visible and clear until it is exposed to sunlight and UV rays. A complete chemical process takes place when it is exposed to sunlight/ UV and starts to move effectively. These molecules completely change when they get darker to the sunglasses shade/ tint.
A chemical process takes place when exposed to sunlight/UV and the molecules effectively move, change shape and absorb the light. This process changes the molecules and they darken to a sunglasses shade/tint, a good seek optics option.
Photochromic lenses will remain in the darkened state while they are exposed to the sunlight/ UV light but molecules will reverse its process completely once the lens is removed from sunlight/ UV rays and returns to its original transparent/ clear lenses.
Advantages of photochromic lenses
Here are the few common advantages of photochromic lenses.
It will reduce your cost
Buying a single pair of lenses will work as a dual purpose as it will provide vision for both indoor and outdoor. It works as normal glasses when you’re indoors and works as a sunglasses protection when you go outside. It works more effectively than buying two separate paid lenses.
Photochromic will give you full protection against the harmful effect of UV rays of the sunlight. When you come in direct contact with sunlight it may cause a serious eye problem and in some cases it may cause blindness so, wearing sunglasses that give you protection from UV rays is most beneficial for your eye health.
You want to buy only that pair of glasses that you want to use. That will be convenient to carry both indoors and outdoors. So, that you can easily switch between the two pairs of regular glasses to sunglasses. You only want to take that pair that you can use for dual purpose, so that you can’t forget to take your sunglasses out.
Through wearing sunglasses you can reduce the risk of eye health issues up to 100%. It can lower your risk of cataract or other eye related problems.
Recommended photochromic lens option.
The transition drivewear replacement lens has polarised photochromic properties that mainly filter or reduce the sunlight and reflect it from the roads and other reflective objects that are from the road. While the photochromic properties adjust the colour tint when you are exposed to the light. This driver lens has various colour features, green/ yellow. A colour tint is available for use in low light conditions and adjusted to the green/ yellow it changes to the red/ brown colour when it is exposed to the most excessive light.
The transitions XTRActive activates when driving to reduce sun glare. It does this by collecting extra energy in the lower end of the light spectrum. The best part about the transition XTRActive lenses is that it can block 88% of the blue-violet light when you are indoor and 33% blue-violet light when you are indoors.
Transition VII/ Signature
These lenses are completely clear when you are indoors or when you are away from UV rays. But, when you go outdoors, these lenses change to darker shades. These are designed in such a way that they quickly adapt to the change in light between indoor and outdoor. One major aspect of Transition VII lenses that you must know is that they are not at all suitable for driving. The main reason behind this is that the windscreen can block the UV required to transition the lens.
The Transition XTRActive are designed in such a way that they can easily get changed to sunglasses when you move outdoors. These lenses are darker as compared to regular lenses. They also have a light tint to shade you from harsh lighting. Unlike the Transition VII lenses, you can easily use the XTRActive lenses inside the car to get maximum protection from harsh sunlight while you are driving. The best part about XTRActive is that it gets activated when you are driving and it reduces sun glare. It works in such a way that it can collect extra energy from the lower end of the light spectrum.
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