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Progressive Bifocal 12mm/14mm Lens
Eyeglasses come in a variety of types. This includes a single-vision lens with one power or strength over the entire lens, or a bifocal or trifocal lens with multiple strengths over the entire lens. But while the latter two are options if you need a different strength in your lenses to see far and near objects, many multifocal lenses are designed with a visible line separating the different prescription areas. If you prefer a no-line multifocal lens for yourself or your child, a progressive a...