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Lens Types

Single Vision "S.V"

Single Vision lenses have a single correction, either for distance or reading. When ordering Single vision lenses it is important to specify (D.V.) Distance Vision or (N.V.) Near Vision. Our Custom LR section only includes the option for + lenses for reading, while our S.V. section allows for entry of + and - corrections. There is a section where you will be asked if you desire D.V. or N.V. lenses.

Multifocal Lenses?

People who have more than one vision problem often need eyeglasses with multifocal lenses. Multifocal lenses, such as bifocals and trifocals, are eyeglass lenses that contain two or more vision-correcting prescriptions. In years past, you could spot a multifocal lens by the line separating the two sections. But today, multifocal lenses, called progressive lenses, can be made to look seamlessly attractive. No one but you and your doctor will ever know!

  • Bifocals. Bifocals are the most common type of multifocal lens. The eyeglass lens is split into two sections; the upper part is for distance vision and the lower part for near vision. They are usually prescribed for people over the age of 40 whose focusing ability has declined due to presbyopia. Presbyopia is an age-related change that affects the natural lens in the eye.
  • Trifocals. Trifocals are simply bifocals with a third section used for people who need help seeing objects that are within an arm's reach. This additional segment is above the bifocal portion of the lens and is used for viewing things in the intermediate zone; for example, looking at a computer screen.
  • Progressive. Unlike lined bifocals, and trifocals, progressive or ‘no-line’ eyeglass lenses have a gradual curvature across the lens surface and provide not only clearer vision at
    near and far distances, but also smooth, comfortable transitions in between.