Shopping for reading glasses is probably much more complicated than you ever expected. Besides figuring out your lens power, there's the whole question of quality- luxury, premium, prescription-quality, drug-store quality, optical-quality, high quality and probably a lot more ways to describe reading glasses quality than you ever imagined!
Quality Reading Glasses: here's what to look for
Thoughtful design not just in style but in fit, function construction and symmetry.
-Plastic Frames should be made from premium grade cellulose acetate - with thousands of optical grade plastics available, it is only readers made from the premium frame materials that will provide you with noticeable comfort and long-wear while maintaining frame integrity.
Having been used in prescription eyewear for decades the manufacturing of cellulose acetate has evolved to make available a selection of high-grade frame materials that are also lightweight, hypoallergenic, allows for personal adjustments, retain their looks and luster and are suitable for prescription lenses. Newer forms of plastic frame materials have still to prove the same qualities including longevity.
-Metal Frames formed from premium grade metals such as stainless steel, titanium and some metal mixes produce enduring designs of lightweight comfort. Premium metals are malleable which makes frame adjustments easy and most mishaps repairable. Most metal frames have adjustable nose pads, a plus for achieving an optimal fit for wide or narrow noses.
-temples reinforced with core wire, standard to prescription quality eyewear
Lens material, lens quality, manufacturing standards and measurements, all contribute to clear vision and healthy vision.
-Optical Grade Premium Lens Materials as in CR-39 (optical plastic) or polycarbonate fabricated to precise ANSI Standards. Acrylic is not an ophthalmic lens material although it is frequently used in many ready-made readers.
-Lens Materials and Manufacturing should follow strict quality control standards. Clear and uniform lens surfaces ground to precise ophthalmic standards, not just acceptable tolerances will give you the clearest vision.
-More Important Lens Features such as an aspheric lens design adds to continuous clear vision throughout the lenses and keeps your lenses thin and attractive. A hydrophobic lens coating makes for easy cleaning and a hard coating improves scratch resistance. Premium lens coatings and treatments wear well; they do not craze, crack or break down.