In order to obtain this marking, manufacturers or their EU Representative Agent (for non-EU businesses) must register their product with the Medicines and Healthcare products Regulatory Agency (MHRA). Like most products intended for the EU market, eyewear must carry the iconic CE marking (as per Medical Devices Regulation 2017/745). You should find a pair that fits your lifestyle, is comfortable for long-term wear, and expresses your style.Under European Medical Device Regulation 2017/745, optical lenses and spectacle frames are considered Class 1 medical devices and subjected to dozens of lab tests and production specifications to ensure optimal lense quality, frame durability and product safety. Types of Glasses FramesĬhoosing the right eyeglass frames is very important. UV light contributes to the development of cataracts. Adding a UV-blocking dye to your lenses will reduce the number of UV rays that reach your eyes. Think of this as sunblock for your eyeballs. There are permanent anti-fog treatments available, as well as weekly drops to treat your lenses yourself. Anti-fog coating can help eliminate this effect. Anti-Fog CoatingĪnyone with glasses in a cold climate is familiar with the fogging that happens to your lenses. It also makes your lenses nearly invisible so that others can see your eyes through your lenses. This increases comfort and visibility, especially when driving, reading, or using a screen at night. Anti-Reflective CoatingĪnti-reflective coating, also called AR coating or anti-glare coating, eliminates reflections from your lenses. If yours don't, you can usually add it for a small additional cost. Most modern lenses come with scratch-resistance built-in. Scratch-Resistant CoatingĪpplying a clear scratch-resistant coating to the front and back of lenses increases their durability. They’re available in all prescription lens types. They darken when exposed to UV rays, eliminating the need for sunglasses. Photochromatic lenses, commonly known as Transitions, are a popular choice. They will be much more expensive than traditional lenses. This type of lens can take your visual acuity to the next level. HD lenses use computer-controlled surfacing technology to create free-form or wavefront lenses. They may increase visual acuity in some cases. They also reduce unwanted magnification of the wearer’s eyes. This makes them a great choice for stronger prescriptions that need thicker lenses. Aspheric LensesĪspheric lenses are flat and thin. These lenses are thinner than basic plastic lenses but not as thin and lightweight as high-index lenses. Similarly, Trivex is a lightweight and durable plastic used in high-risk environments. #SPECTACLE FRAMES CRACK#They’re lightweight and impact-resistant, making them much less likely to crack or shatter. Polycarbonate lenses are standard in safety glasses, sports goggles, and children’s eyewear. High-index plastic lenses are even thinner and lighter than most plastic lenses. Plastic is cheaper, lighter, and safer than glass. Plastic lenses are the most common type because they can produce similar results to glass. They’re still available, but most lenses are made of plastic now. Their substantial weight and potential safety issues have made them unpopular. However, they are very heavy and prone to cracking and shattering. Glass lenses provide excellent visual acuity. Types of Lenses and Lens Treatmentsīesides the standard prescriptions, there are many lens options when choosing your glasses. However, they may also serve as safety glasses in certain low-risk situations. These are usually fashion accessories that don't have prescription lenses. There has been an increase in the popularity of non-prescription glasses recently.
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