Sometimes when a person realises that they require glasses, they are able to simply choose a pair ‘off the shelf’ and purchase them. However, in some cases these glasses are not sufficient to correct a person’s visual impairment, in which case Prescription Lenses may be required. Prescription lenses are only prescribed to someone following an [...]
Posts Tagged ‘Varifocal Lenses’
Why Are Prescription Lenses Used?
February 12th, 2011 by Aakash Shah
Varifocals – What Are They and How Do They Work?
January 9th, 2011 by Aakash Shah
Varifocals have a wide scope of prescription strengths in the same lens, meaning they have a wider “corridor” over which vision is close to natural. This allows you to select the best lens strength to view objects at any distance, near or far. This “corridor” of change in lens power is what makes varifocals so [...]
Posted in Progressive Lenses 
Tags: multifocal lenses, Progressive Lenses, Varifocal Lenses 
No Comments »Advantages and types of progressive lenses
October 30th, 2009 by Aakash Shah
Progressive lenses for presbyopia have some advantages over traditional bifocal lenses and trifocals, all of which belong to multifocal lenses. There are no visible lines on progressive lenses, which attract certain group of people in their 40s who care deeply about their appearances. Furthermore, progressive lenses provide clear and comfortable vision at all distance including [...]