Prescription eyeglasses are needed by a large number of people on a daily basis. For this group of patients, a severe vision condition forces them to rely on an Rx eyewear during a majority of daily activities, ranging from reading a newspaper to watching TV. For those who have a long history of eyewear usage, a bothersome problem is that prescription eyeglasses are usually delicate. These delicate glasses are to some extent quite fragile under external impact. As a result, regular eyewear users have to sometimes get their glasses repaired or replaced. Replacing eyewear partially or completely certainly causes much expense. In fact, there are possible ways to minimize the risk of breaking prescription eyeglasses. Due to technological improvements in both lens and frame industries, there have been some solutions that enable eyewear to be much more durable and strong. Resorting to these solutions will generally help protect the eyewear.
The frame is responsible for holding the lenses and it should firstly be durable and impact resistant. Delicate glasses first rely on this protection from the frame. In the current market, eyewear frames made of certain materials have gained significant improvement in durability and impact resistance. Titanium, beta-titanium, stainless steel and memory metal are the best options. All of them are lightweight and impact-resistant. In particular, memory metal still features extreme flexibility, allowing the frame to be bended to a considerable degree. In terms of durability, frames made of these metals are superior to traditional plastic frames. Moreover, some unusual materials like bone and wood can hardly guarantee durability. They only flatter distinctive tastes.
Delicate glasses need safety consideration not only about the frame, but also about the lenses. To a certain degree, the lenses are the major part that is exposed directly to external impact. This makes the selection of impact-resistant and shatter-resistant lenses a necessity. Traditionally used materials like glass and regular plastics are too delicate to withstand a flying object like a tiny stone or a pen. These inferior materials have largely been abandoned. Instead, new materials like high index plastics and polycarbonate are on the rise, because of their valuable features including impact-resistance.