Different eyeglass frame materials greatly expand your options for a new look. While shopping for new eyeglasses or sunglasses, ask your optician for advice about variety in colors, durability, lightness, favorite brands, hypoallergenic materials, uniqueness and price.
In fact, finding eyeglasses with the qualities that are most important to you could be as simple as choosing the right frame material because each type has its own unique strengths.
If you want the colors of the rainbow, then zyl (zylonite, or cellulose acetate) is your material. Zyl is a very cost-effective and creative option for eyewear and is extremely lightweight. Particularly popular right now are laminated zyl frames that have layered colors. Look for light colors on the interior sides, which can make your eyewear “disappear” from your visual field when you wear them. An all-black frame, on the other hand, is visible at all times on both interior and exterior sides.
Some manufacturers also use cellulose acetate propionate, a nylon-based plastic that is hypoallergenic. It’s lightweight and has more transparency and gloss than other plastics. If your main criterion for a frame is lightness, then definitely consider propionate frames.
Plastic frames do have some drawbacks. They are easier to break than metal frames, they will burn (but are not easily ignited), and aging and exposure to sunlight decrease their strength slightly. Color can fade over time, but not as much with modern materials.
Titanium and beta-titanium are also popular materials for eyeglass frames. Titanium is a silver-gray metal that’s lightweight, durable, strong and corrosion-resistant. It has been used for everything from spacecraft to implantable medical devices such as heart valves.
Titanium eyewear can be produced in a variety of colors for a clean, modern look with a hint of color. And it’s hypoallergenic.
Some titanium farmes are made from an alloy that is a combination of titanium and other metals, such as nickel or copper. In general, titanium alloy frames cost less than 100 percent titanium frames.
Beryllium, a steel-gray metal, is a lower-cost alternative to titanium eyewear. It resists corrosion and tarnish, making it an excellent choice for wearers who have high skin acidity or spend a good amount of time in or around salt water.
Beryllium is also lightweight, very strong, very flexible (making it easy for an optician to adjust your glasses) and available in a wide range of colors.
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