Single Vision Lenses
Single vision has the same optical focal point or correction over the entire area of the lens. Single vision can be used to correct various correction problems. It is the most common type of lens until a person goes into a bifocal, trifocal, or progressive lens.
These lenses provide special visual and cosmetic benefits for stronger corrections and increase edge to edge clarity. Flatter than conventional lenses, aspherics eliminate the “bulgy” appearance of strong plus lenses (far-sighted corrections) and greatly enhance the appearance of finished eyewear. Persons with strong nearsighted corrections also benefit from thinner, lighter weight glasses when their lenses are aspheric. Because aspheric lenses are positioned closer to the face, there is less eye magnification with farsighted corrections and less “small eyes” look with nearsighted corrections. Aspheric lenses are often made of high index materials for the ultimate in thin lenses.
Flat Top Bifocals
This is also referred to as the lined bifocal and is available with the bifocal portion made in a variety of widths to help with various close-up occupations. Flat top bifocals are made in every type of lens material.
Trifocals come in a variety of designs. Flat-top trifocals are the most widely used form. The added segment provides clear vision at arm’s length distance, the area that is usually blurred for bifocal wearers. Trifocals are available in all lens materials.
Progressives (no line bifocals)
These lenses provide all the benefits of bifocals but add the feature of continuous clear vision at all distances, including mid-range distance (arm’s length). Progressives have the cosmetic advantage of appearing to be single vision lenses so they never reveal the user wears bifocals. Progressives are available in all lens materials and also made in aspheric form. Because of their many benefits, they are becoming the lens of choice for bifocal and trifocal wearers. New technology in progressive lenses also referred to as “digital” progressives have made progressive lenses the most advanced lenses on the market today. See more about digital lenses below.
All sorts of special lens designs are available for the special needs of sports enthusiasts. Whether you fish, bike, golf, run, or hunt we have frame and lens combinations that will fit your particular needs. We are skilled at finding the right pair of sports glasses for children and adults.
There are a variety of options for those who use computers. These progressive computer lenses and anti-reflection coatings. We recommend computer glasses to any person who is on the computer for four or more hours a day. Click here to learn about computer vision syndrome.