If folks previously needed distance vision correction, progressive lenses allow them to have both prescriptions without needing multiple glasses. Unlike bifocal lenses, progressive lenses have no ...

Bifocal or trifocal or progressive lenses are really just multiple sets of lenses squashed into a smaller form factor, and greatly reduce the wearer’s field of view which is itself a significant ...

“Starting as a son’s desire to rid his father of bifocals, Dr Bernard Maitenaz’s invention of progressive lenses is now widely used to assist with the correction of presbyopia,” Elizabeth ...

A progressive lens design is like a bi- or tri-focal lens in that it corrects more than one vision problem at a time. However, these lenses have no visible lines, improving the cosmetic appearance of ...