Benefits of Aspheric Design

 Many eyeglasses are made with aspheric lenses. There are several advantages of aspheric design when it comes to eye care, and many eye care professionals now offer glasses made with these specially designed lenses. An aspheric lens is a change from the usual spherical lens, whose surface curves much like a baseball. An aspheric lens has a more even surface area that results in some favorable characteristics.

Glasses that are made with aspheric lenses have a lower lens profile, which some people think is more attractive for wearers. The aspheric design is meant to focus all light rays directly through the center and onto the retina, a design that allows the lens to be flatter and sleeker than a traditional spherical lens. Lower profile glasses make less of a physical impact on the wearer, and provide vision correction without the bulkiness of an overly thick, spherical lens.
Frames that include aspheric lens can be more comfortable for those who wear them because of their lightweight frames. Because aspheric lenses are low profile, they require significantly less material than regular spherical lenses. With less material comes less weight necessary to support the lens. Glasses with aspheric lenses have lighter frames than glasses with regular spherical lenses, and are more comfortable on the face. They can provide a barely-there appeal for the wearer.
A major benefit of aspheric design in eye care is the quality and sharpness an aspheric lens provides for vision correction. Because of the subtle curve of an aspheric lens, its power and strength, the features that allow the wearers to see correctly, are distributed evenly across the area of the lens. This allows the wearer to see clearly and sharply while looking out of any part of the lens, a feature that isn't readily available in regular spherical lenses. Traditional lenses create a slight distortion as the wearer moves his eyes away from the center of the lens, causing vision to lose sharpness and acuity; they also often magnify or shrink the images the wearer sees.
Another major benefit of lenses with aspheric design is their physical appearance on those who wear them. Because glasses with aspheric lenses are low profile with an even strength distribution, they reduce the possibility for a distorted look to the wearer's eyes as seen by others. Anyone looking at a person wearing these lenses would see eyes of normal size. Regular spherical lenses either magnify or shrink the appearance of the wearer's eyes, resulting in an unnatural look.