SINGLE VISION LENSES
Typically used for patients who can see far and near with a single prescription.Some patients with a “bifocal prescription” prefer two separate pairs of single vision glasses, one for near and one for far, as an alternative to bifocals.Single vision computer lenses can also be prescribed to supplement bifocal or progressive lenses that are worn for general use.
Flat top or round bifocals give clear vision for far and near, but typically don’t give clear vision at arm’s length.A computer bifocal can be made with the line extra high, or with the computer vision on top and reading on the bottom.
Trifocal lenses are recommended for patient who have worn flat top bifocals successfully, but now need to see better in the 2-4 feet range such as seeing a computer or items on a shelf.
Also know as “no-line bifocals” or “Varilux”, Progressive lenses give clear seamless vision for far, near, and in between.
Also know by the brand name “Access” computer Progressives are ideal for computer or other office type work because they give a larger viewing area than standard progressive lenses for seeing the computer.