Progressive multifocus glasses for all your need. The bottom part of the lens is full-power magnification, then used for nearly distance reading. The middle part is slightly reduced power ...

Understanding vision requirements, selecting the right lens materials and considering protective coatings can make ...

enabling the wearer to adjust her focus depending on the distance from the object she is viewing—similar to bifocal or progressive-lens glasses. There are also contact lenses that can correct ...

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 ...

OPSM optometrist Elizabeth Kodari finds the development of progressive lens technology among the most fascinating of recent eyewear innovations. “Starting as a son’s desire to rid his father ...

The top part of the lens is HALF the magnification you select ... please don't hesitate to contact the seller, we will try our best to solve them.