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These days, progressive photo chromic glasses have gained much popularity among both the celebrities and the ordinary people. They are a combination of those two types of lenses, bifocal glasses and photo chromic glasses. In old days, many people suffered from presbyopic and had trouble seeing near things. They had to carry at least two pairs of glasses when they go outside. The emergence of progressive photo chromic lenses made it possible to have another option. Compared with traditional lined bifocal sunglasses, the photo chromic progressive glasses have the following advantages:
Some patients will be distracted by the dividing line in full-width bifocal, with progressive glasses, they don’t have worry about that any more, for the progressive no-line bifocal lenses will smooth out the division between the upper and lower parts of the lens. They can give you the intermediate distance that a regular bifocal can’t do. When you look straight ahead there may be little added strength, and when you look down at some angle there may be significant strength. This means the same eyeglasses can be used for both driving and reading without distraction. It is not hard to see that progressive no-line bifocal glasses are superior to either conventional reading glasses or bifocals. Latest technologies have introduced “short corridor” progressive lenses, which can then be inserted in a smaller stylish and fashionable glasses frame.
If you wear prescription eyeglasses and wear prescription sunglasses while going outside, you will have to carry two pairs of prescription glasses. And this is a bit inconvenient to many people. If you choose to wear photo chromic progressive glasses, that will solve your problem, you can wear them for both prescription glasses and prescription sunglasses. You could also use them for reading when you are enjoying the sunbath. The definition of photo chromic is capable of utilizing the change of color shown by a photo chromic substance, have a variable tint that changes with the amount of available light. In bright sunlight, they darken; indoors, they become clear.
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