Varifocal Glasses & Spectacles For Presbyopia Correction
- August 18, 2010, 5:04 pm
Varifocal glasses are a special form of multifocal spectacles. Varifocal glasses are also known as the progressive glasses, graduated glasses and no-lines bifocals. It is called by the name varifocal because there are different powers at different levels of the lens. At the top of the lens, the power is minimum, which gradually increases in the middle level and finally, the bottom part of the lens has the maximum
Continue Reading...