Varifocal lenses, also called progressive addition lenses, progressive power lenses and graduated lenses, are corrective lenses used in glasses to correct presbyopia and other disorders of accommodation. A...
Bifocals are glasses that have corrective lenses containing two different optical powers. They are most commonly prescribed for people with presbyopia, and who also require a distance correction for myopia,...
WHAT DO THE FRAME MEASUREMENTS MEAN ? The best way to get the right frame size is to look at the dimensions from a pair of glasses you currently own. They do not need to be exact, but the closer they are the...