The one who wins is you. 51 years experience Ophthalmology. Trivex lenses are, molecule for molecule: Eight percent lighter than polycarbonate; 16 percent lighter than CR-39; 19 percent lighter than high-index. Both materials are an outstanding choice when it comes to prescription and non-prescription safety glasses. Ultra-lightweight—Trivex features the lowest density, 1.11, of any optical-grade material on the market. trivex lenses vs polycarbonate. Polycarbonate lenses are thinner than Trivex because of higher index of refraction. Anonymous. Problems With Trivex Lenses. CBS News. Trivex vs. Polycarbonate. Types Of Lenses For Glasses . Trivex lenses provide far superior optical quality and can be easily tinted. Like polycarbonate, lenses made of Trivex are thin, lightweight but are even more impact-resistant than polycarbonate. Thickness: Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses, but as you see in the video, the difference may not even be noticeable. Trivex Vs High Index 1.67 . Generally speaking, the higher the index, the worse the Abbe. Glasses become a burden if you are … This mid-index value enables lenses made from Trivex material to be thinner, lighter and more comfortable. These ultra thin lenses are thinner than plastic, Polycarbonate or Trivex. Likewise, Trivex and other borderline normal/mid-index materials may be referred to as mid-index. For example, when using a lens with a refractive index of 1.67, a total of 11.8 percent of the light striking the lens is reflected. have found is that an AR coating is a necessity with ALL mid and high index, poly and trivex materials because they have greater surface reflections than CR39 and transmit less light. When aspheric curvatures are used on lenses, even more thickness and weight reduction can be achieved. The lower numbers are classified as mid-index lenses. Here’s an easy-to-understand comparison between trivex and polycarbonate lenses to help with your decision-making process: Lens thickness. If a tint is also added (which will block even more light from transmitting), the patient may experience problems. Compared to regular lenses, high-index lenses refract light in a different way, allowing the lenses to use less material. Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses. Trivex Lenses vs polycarbonate lenses. In general, a high index lens will be thinner, but ONLY if you have a high enough prescription. Polycarbonate has an Abbe of 30, and is one of the worst of the commonly-used lens materials. Others are mostly concerned with lens impact resistance and immediately default to polycarbonate material. Suggestions. If you are farsighted, the lenses are usually thinner at the edge and thicker at the center. Trivex Lenses Vs Varilux Lenses Problems With Trivex Lenses. Dr. Richard Bensinger answered. Either has advantages and disadvantages. Extra High Index 1.67 1.67 index lenses are appropriate for all styles of frames, and are great for strong prescriptions. Trivex lenses vs. Polycarbonate Eyeglass Lenses. Trivex lenses: the low-down. They use “plus” measurements. Läßt sich … And that can mean fewer patient complaints of heavy eyewear sliding off their nose. Chromatic aberration is when white light is broken up into component colors. Lenses of this material are about 50% thinner than lenses made of standard Plastic CR-39 lens material. TVGuide.com. High Index Vs Trivex Lenses. Our polycarbonate lenses have a 1.59 index which, while quite thin, is more focused on durability than lightness. Of the common mid-index materials, Spectralite is at 47, and Trivex is slightly worse with an Abbe of 47. Best Eyeglass Lens Material Eyeglass … Because of less internal stress, Trivex produces a clear central vision than polycarbonate. Like polycarbonate it provides 100% UV protection and it is extremely durable. Gamespot. High index lenses can be up to 50% thinner than regular glass or plastic lenses, and they’re usually much lighter, too. Advantages of higher indices Top answers from doctors based on your search: Disclaimer. Mid-index lenses, such as 1.54, 1.56, and 1.57, are thinner than glass, and nearly as strong as CR-39. CNET. In 2001 a rival lens material called Trivex was developed. Trivex material provides high impact resistance. ZDNet. Others have been dazzled by the staggering array of high index offerings and have come to assume that they must use the highest index lens material they can for any given prescription in order to obtain the thinnest, lightest possible pair of lenses. Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. Trivex material is one of the lightest lens materials on the planet. The higher the number, the thinner and lighter the lens. Trivex vs. Polycarbonate: A Quick Side-By-Side Comparison. Trivex is optically superior to polycarbonate and it is lighter. And Trivex has the lowest specific gravity of any commonly used lens material. High Index Plastic: 1.60: 36: High Index Plastic: 1.66: 32: Trivex: 1.53: 43: Polycarbonate: 1.58: 30: MR-174 1.74 32. As with PPG Trivex material, you can recommend PPG Tribrid lens material with confidence knowing that this new and unique high-index lens material offers similar performance benefits to Trivex material with enhanced thinness… perfect for your patients with stronger prescriptions requiring more demanding vision correction needs. One of the most popular high index lens materials has a refractive index of 1.67. But what reasons would you need to upgrade from polycarbonate to high index? Conversely, the thinnest lenses for a high prescription will be the higher index lenses. Trivex is 16% lighter than CR-39, 25% lighter than 1.66, and 8% lighter than polycarbonate! The Results. Both materials are excellent choices, with a plus for trivex eyeglass lens, especially the quality of vision and resistance, but also with a higher price. A 36-year-old member asked: are polycarbonate lenses helpful? Anyone who wears glasses knows the difficulty of certain activities is increased because you must keep your glasses on your face while active. Trivex Progressive Lenses. CR-39 is the best of the plastics, with an Abbe of 59. Here is a brief comparison of polycarbonate and Trivex lenses to help you decide which lenses might be best for you: Thickness. It is lighter and more scratch resistant and has high-impact resistance like Polycarbonate. Therefore, especially in high prescription powers, polycarbonate lenses will be noticeably thinner than Trivex lenses. On the other hand, polycarbonate lenses have a higher index of refraction than Trivex lenses (1.58 vs. 1.53). Types Of Lenses For Glasses Trivex Transitions Lenses. Problems With Trivex Lenses. Tech Republic. High index lenses, offering you the ultimate in technology and cosmetics. Trivex and other borderline normal/mid-index materials may be referred to as mid-index higher-index lenses reflect more from! 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