As we know, most people who need corrective eyewear don’t just suffer from presbyopia. Many of them also have myopia, hyperopia and/or astigmatism. For them, a pair of single prescription glasses is far from enough. They need bifocal glasses so that they can accommodate easily from a distance vision to a close-up one. Having two distinct optical powers on each pair, bifocal glasses are specially used for corrections of presbyopia and other refractive errors. With this type of glasses, one can easily see things of distance by looking through the upper part of the lenses and read fine prints at a close-up range by moving down the vision field and looking through the lower part. Both bifocal glasses and shades come in a variety of frame types, including metal, plastic, horn and even wood. Out of all these materials, metal makes the best frame choice for bifocal eyewear, being it glasses or shades. With its incredible strength, impact resistance and unmatchable fashion value, metal framed bifocal eyewear certainly provide the best eyecare both optically and physically for those of us who suffer from more than one vision error.

In the case of bifocal glasses, every lens contains two distinct optical powers, hence two different segments of lenses separated by a line. This feature make it inevitable for the lenses to be super large and for these large lenses to be kept in place, the frame material must be of incredible strength. Metal, as it happens, is the strongest material used in the optical industry, which makes it the best frame choice for bifocal glasses. Besides being able to hold the large bifocal lenses perfectly, metal frames can also be made extremely lightweight. With the rapid development of frame techniques and the use of certain types of metal such as stainless steel and titanium, bifocal glasses with metal frames can be made even lighter than those framed with plastic, making them the better choice between the two. Aside from being strong and lightweight, certain types of metal are also extremely flexible. With their incredible resilience, these material can be made into bendable even memory frames that can automatically return back into shape after they have been deformed. Strong, lightweight and flexible, metal framed bifocal glasses surely will be the most durable eyewear you ever make an investment in.

Aside from being able to last a long time and therefore save the wearer a fortune, metal framed bifocal glasses also come in a huge fusion of styles. From the classic Ray Ban aviator to the much loved Wayfarer and Carrera, metal frames are ubiquitous, and since these metal framed glasses always give out that bold and masculine vibe the current fashion world is so desperately craving, it’s no surprise at all that they will keep on rocking the world for at least a couple of seasons to come.

• Previous Entry: What’s All The Fuss About Progressive Lenses?
• Next Entry: A Guide To Shopping Prescription Sunglasses For Big Heads