A progressive lens design is like a bi- or tri-focal lens in that it corrects more than one vision problem at a time. However, these lenses have no visible lines, improving the cosmetic appearance of ...

There are many different types of lenses for various lifestyle activities ... Reading: These are a good choice if you have simple presbyopia (good distance vision but trouble up close).

What lens should I take?" Well, now, that's a simple question ... hiking for two weeks in the rain forest of Brazil? Different types of travel require radically different equipment choices.

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