Prescription sunglasses function the same way as regular Glasses; the only difference is that their lenses are customized specifically to correct the user’s vision problem. They should have 100% ultraviolet radiation protection, since regular exposure to the sun’s ultraviolet rays – even on cloudy days – can lead to even more eye problems. Some of the diseases that can result are photokeratitis, cataracts, and macular degeneration. Having minor vision problems like nearsightedness is bad enough; getting more serious diseases because of failing to wear proper corrective Reading Eyeglasses surely would be a disaster.
Eyeglass frame materials, too, have been revolutionized with the advent of new plastics and various types of metals. Frames generally are fabricated from plastic or metal, but can be made from any workable material. For Eyeglass Frames, you may require an extra tough plastic, such as polycarbonate. If you suffer from skin allergies you might need hypoallergenic materials such as titanium or stainless steel to avoid a skin condition known as contact dermatitis.
Some eyeglass frames have components that can be snapped into place, rather than attached by screws or other means. This type of feature can be handy if you choose to “mix and match” different colored temples with the same set of lenses.
Certain types of eyeglass frames now also are highly flexible, which reduces the possibility of breakage. Spring hinges are also flexible. These types of frames are ideal for kids’ eyeglasses, because of the durability factor.