The Ophthalmic frame is the part of a pair of glasses which is designed to hold the lenses in proper position. Which is to the external gloss to every person’s appearance.
Metal Frames – Metal is the most popular material for eyeglass frames. There are many types of metal you can chose. When each having it’s own distinctive properties.
Titanium – This premium metal is very strong, durable, corrosion-resistant, and is 40% lighter than other metals. It’s also hypoallergenic, making it a nearly perfect material for eyeglass frames. Titanium frames are available in several colors.
Memory metal – This is a titanium alloy composed of roughly 50% titanium and 50% nickel. Frame made of memory metal are externally flexible, and can be twisted or bended to an extreme and still return to their original shape. The feature makes memory metal frames great for kids or anyone who is hard on their glasses.
Beta titanium – This is an alloy of predominantly titanium, with small amounts of aluminum and vanadium. These other metals in the alloy make beta titanium more flexible than 100% titanium for easier fitting adjustments.
Beryllium – This lower-cost alternative to titanium resists corrosion and tarnishing, making it an excellent choice for anyone with high skin acidity or who spends a good amount of times in or around salt water. It’s also lightweight, strong, durable, flexible and corrosion-resistant. They also can be produced in matte or polished finishes.
Nylon – This frame material is still occasionally used. Nylon is strong, lightweight and flexible, but it can become brittle with age. For this reason, it has for the most part been replaced by nylon blends-polyamides, copolyamides and gliamides – which are more durable.
Combination frames – As you might guess, these are frames that have both metal and plastic components. Popular in the 1950s and 1960s, combination frames have made a comeback recently, in a wider variety of colors than the classic models. Each frame material offers it’s own advantages and style features. For eyewear that fits every occasion in your life, consider purchasing more than one pair of glasses and choose a different frame material for each pair.
For example, you may want a conservative-style frame made of durable, lightweight titanium for work. But on weekends, you may want something with more color or style, like a zyl frame in laminated colors, or a combination frame with a modern aspin of that classic retro-look.