See the difference with Digital progressive lenses…
Progressive lenses made their commercial debut in the middle of the last century. Also known as progressive addition lenses (PAL), the lenses enable eyeglass wearers to transition from distance to near vision without the image jumping when the eyes shift from one distance zone to another. They also have a cosmetic benefit: there is no line as there is with bifocals.
The Advantages of Free Form Progressive Lenses
The debut of digital processing and the ability to create “free form” lenses has enabled optometrists to craft lenses that better suit the needs of the user while minimizing the distortion inherent in progressive lens designs. These free-form lenses are made using a three-axis, computer numerically controlled (CNC) generator to carve a complex surface that looks something like a 3-D topographical map. In addition, lenses made this way have a resolution up to six times greater than traditional progressive lenses. Here at Riverside Eye we use the latest lens technology in order to ensure our Patients have the best vision possible.