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Progressive Lenses have no visible lines and provide a smooth gradual progression of power from distance vision on top through intermediate vision to near vision on bottom. Progressives have multiple focal areas unlike lined bifocals or trifocals which have only two or three.
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Single Vision Lenses are prescribed if you need correction for one field of vision, either for distance only, intermediate only (computer), or reading only (near vision). Eyeglass Lens Direct offers a number of options for the single vision lens wearer.
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No-Line Computer Lenses are an occupational progressive lens, a no-line multifocal that corrects near, intermediate and, to a degree, distance vision. It has a larger intermediate zone than regular progressive lenses, leaving less space for distance. Computer eyeglass lenses are generally not suitable for driving or regular wear.
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