For people who have a vision problem like myopia, hyperopia or astigmatism, getting proper vision aid is one of the tasks in daily life that have overwhelming importance. This is not an easy task. Today, there are several ways to compromise vision conditions mentioned before. While prescription eyeglasses and contact lenses provide temporary and convenient vision aid at controllable degrees, surgical treatments like PRK and LASIK offer permanent correction. Even if prescription contact lenses and eye surgeries have their own advantages over Rx eyeglasses, these two solutions still have noticeable shortcomings. Thus Rx spectacles have remained as the major solution for many years. Eyeglasses made of prescription lenses are convenient and are capable of offering precise levels of vision correction. No eye infections or side effects would be caused. The problem is likely that choosing a pair of top glasses for vision correction requires many considerations in different aspects. Knowing certain tips is quite important.
It is widely recognized that modern eyewear manufacturers pay more and more attention to eyewear decoration, emphasizing on frame look. However, the invisible, functional aspects related to the frame and lenses remain the most critical. It is quite obvious that frame color and style only determine the appearance of Rx eyeglasses, rather than functional help. Among those critical, functional factors, frame material and lens material deserve particular discussion and emphasis.
Getting a pair of top glasses first requires a customer to choose qualified lenses. Glass lenses have nearly been abandoned due to mainly their heaviness. Superior materials are mostly plastics like polycarbonate and high-index materials. The selection of frame material is probably of second importance. When traditional plastics are still available, the market is largely occupied by modern, advanced metals like titanium, stainless steel and memory metal. These metals have valuable advantages such as lightness and durability. Remember that people who want to get a pair of lightweight spectacles are now not limited to plastic frames. Metal frames can offer similar and even superior benefits.