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The comparison is based on the features of Trivex and polycarbonate. This difference is, however, subjective. As noted above, both polycarbonate and Trivex have similar impact resistance, which is also higher than other forms of plastic. A 36-year-old member asked: are polycarbonate lenses helpful? Trivex lenses are composed of a urethane-based monomer that has lower specific gravity than polycarbonate and is 10% lighter as a result. However, Trivex has a lower refractive index and is, therefore, slightly thicker and lighter than polycarbonate. This Additionally, polycarbonate has a higher chromatic aberration with an Abbe value of 29. On the other hand, Trivex has a higher Abbe value and lower chromatic aberration. Trivex vs high index. … The higher the number, the thinner and lighter the lens. Polycarbonate does not go without drawbacks. Here is what you need to know: If until now, you knew that polycarbonate is the most impact resistant, now we have newer stuff, trivex glasses with features resembling those of polycarbonate but better. 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. For any given prescription, Trivex is a lighter lens than its polycarbonate counterpart. If have a pair of glasses made with high index plastic and … Trivex lenses are lighter compared to polycarbonate lenses. The real winners are materials such as Trivex, CR-39 and Crown Glass. The best of doing this is by adding scratch-resistant materials on the surface of the lens material as a coating. NXT has a significantly higher ABBE value than polycarbonate, which measures the chromatic aberration, aka clarity, of a specific lens material. Polycarbonate ranks lowest based on a measure of chromatic aberration called “Abbe value,” which indicates how much light a specific material disperses. Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. monomer (1.32), Trivex material is 16% lighter; compared to polycarbonate, it is 8% lighter, and nearly 25% lighter than ultra high index (1.66 and 1.74) materials. For instance, compare the cost from the same dealer or the price of the same quantity. Polycarbonate or Trivex are the most protective eyeglass frmaes. In other words, they are not rigid and stiff. If you're going to be racing, hiking, or running, you don't want to feel the sunglasses on your face. Conversely, it is more suitable for use in drill-mount frames because of its high tensile strength, which makes it resistant to cracks when drilled. $8-$900 later I decided to educate myself on lenses and found out trivex are … Also, polycarbonate can be used in this way but is less resistant and sometimes break around the drill holes at mounting. I am now on my third eyeglasses that are showing machine like even crackling scratches INSIDE the lenses themselves. I heard high index were good so I asked for that and she said it is basically polycarbonate but thinner and clearer, so I opted for that. Trivex, when compared to polycarbonate, works better. The main question should always be, what the biggest priority of your lenses is. That is because Trivex has a lower specific gravity compared to polycarbonate. Posted on September 6, 2013 by adveyecarecnter. Home Trivex has the impact resistance and inherent UV protection of polycarbonate. However, users are advised to conduct their homework well and put the material through their tests to determine if it is suitable for particular uses. Other high-index materials are classified by numbers. Value—The modest up-charge ECPs see on their wholesale price lists for finished, conventionally … However, polycarbonate is 10% thinner than Trivex. It combines the positives of polycarbonate with higher optical quality, which makes it a step in the right direction for lens prescriptions. Trivex vs. Polycarbonate. On weight, the advantage is all in favor of trivex eyeglass lens, which is lighter than polycarbonate eyeglass lens, being even the lightest and most comfortable material used in the manufacture of lenses, that due to its lower density. These are thinner and lighter than the traditional eyeglass frames. I have. Trivex is 90 percent more resistant to this type of induced distortion than polycarbonate. Materials with a … licensed opticians will always advise you individually on the best choice between Trivex or Polycarbonate for your kid’s eyewear lenses. In fact, the two lens materials possess the same resistance to impact. However, these differences are only notable on papers. However, the prices of these lens materials differ significantly in the market. The one who wins is you. Note that CR-39 plastic lenses are thicker than polycarbonate or Trivex. In the long run, this post aims to put the question about how Trivex and polycarbonate compare to one another to rest. This is the reason for its superior impact strength (about 10 times higher than CR … 1 doctor agrees. 0 thank. Here is a useful comparison of polycarbonate and Trivex: Trivex: Polycarbonate; lighter: thinner; sharper central vision; better clarity higher Abbe = less chromatic aberration = sharper peripheral vision even more impact resistant; stronger: impact resistant; chemical resistant: not chemical resistant; 100% UV protection: 100% UV protection … Born from the space race in … There are no scratches, Q: 1. Trivex is a more rigid material, making it a better selection for rimless or drill mount frames. The services of rapid prototype we providing are professional Engineering, CNC Machining including CNC Milling and Turning, Sheet Metal Fabrication or Sheet Metal Prototyping, Die casting, metal stamping, Vacuum Casting, 3D printing, SLA, Plastic and Aluminum Extrusion Prototyping, Rapid Tooling, Rapid Injection Moulding, Surface Treatment finish services and other rapid prototyping China services please contact us now. Hi, I'm Endre with my brother Arpi. When to Use Polycarbonate. Polycarbonate also has a high likelihood of cracking when drilled because it has a low tensile strength. » The pressure causes certain areas of the lens to become denser than others, increasing the index of refraction and causing light to … Got a new pair of glasses with bifocals and noticed that the left bifocal is slightly tilted and at a different height than the right. NXT lenses can be most closely compared to glass or mineral lenses when it comes to offering superior optical quality. You have two options, trivex lenses and polycarbonate eyeglass lenses if you want impact resistant and comfortable lenses with UV protection for your eyes. The lower numbers are classified as mid-index lenses. Categories: Articles, FAQ. Both materials are an outstanding choice when it comes to prescription and non-prescription safety glasses. How thick would plastic lenses be on a round size 48 frame? The Difference: The key difference that sets the two materials apart however, insofar as providing an optimum eyewear experience, is that Trivex lenses have a higher ABBE LEVEL. Tags: … It can be drilled successfully without cracking the material around drill holes. Our advise will be based on your child’s prescription, frame choice, and lifestyle. This means that annoying chromatic aberrations are a thing of the past. #1 Priority Should Be Optical Quality. If thinness is important to you, then you should consider these other two alternatives. Polycarbonate and Trivex do not occur naturally. The glasses I'm using currently are hi-index plastic and while it's ok, it doesn't feel, Q: Please help. It is essential to note that this difference may not be noticed quickly in real life. It can be used for any activity that request your eyesight better than like: working on computer, driving or any sport. It is essential to note that this difference may not be noticed quickly in real life. This website is created for a purpose, we want to help as many people as possible, to make an informed choice when shopping for glasses. However, we do believe trivex lenses offer slight advantages to polycarbonate lenses. When carrying out a test to compare Trivex and polycarbonate, you will discover that the performance differences of the two lens materials are negligible. High index plastic’s key feature is its thinness, especially in higher prescriptions. Trivex vs polycarbonate: What are the Differences? Polycarbonate is not only more affordable but also highly shatter resistant, which makes it ideal for use in safety and sports eyewear. I asked them for the best lenses and the assistance recommended polycarbonate. All rights reserved. UV Protection—Trivex offers outstanding UV protection, blocking 100 percent of UV rays all the way to 395 nanometers, well beyond ANSI standards. This indicate the lenses of this material for rimless glasses, if what you want. Polycarbonate vs. Trivex (continued) Product Comparison (continued) Birefringence Birefringence is a result of strain or stress caused by force that is applied to a lens substrate material. Compared with polycarbonate lenses, Trivex® is a premium material that provides crisper vision and is 10% lighter. They are both manufactured from different compounds and are available in a wide variety of designs and models. When aspheric curvatures are used on lenses, even more thickness and weight reduction can be achieved. Trivex rises above polycarbonate with both its optical quality and suitability for drill mounting in theory. As the eye has an Abbe value of around 45 – 50, Trivex’ properties are perfectly matched to the eye. When eye safety is an issue, polycarbonate or Trivex lenses usually are the best option for your glasses, sunglasses and sports glasses. This is 40 nanometers more than untreated CR-39. With a lower index of refraction, Trivex may be slightly thicker than polycarbonate, but is lighter, and can be surfaced to the same 1mm center thickness. Additionally, Trivex is commonly used as a lens material because of its high-velocity impact and has been increasing in application and market availability. Trivex Lenses. Dr. Richard Bensinger answered. This shortcoming makes it a challenge to use polycarbonate in drill-mount frames. However, it is the lightest lens material in the market and doubles up as perfect protection against UV rays. For example, Trivex did not experience any change in weight, diameter, or clarity when submerged in containers of chemicals like acetone (a volatile, flammable liquid) for 10 days. Both lenses have comparable impact resistance and offer 100% UVA/B protection. Meanwhile, shatter resistance is also in favor of trivex. In fact, breaking a thin polycarbonate lens would require bending it back and forth several times. Trivex is extremely shatter resistant, chemical resistant. Mid-index lenses, such as 1.54, 1.56, and 1.57, are thinner … Trivex eyeglasses are more expensive as anything is new and better. Both polycarbonate and Trivex offer 100% protection against UV rays. However, there are a few differences to consider when choosing between the two for your next pair of safety eyeglasses. That is because Trivex has a lower specific gravity compared to polycarbonate. © Roche Industry 2021. Trivex is a material that is very similar to polycarbonate and was designed to mimic poly’s impact resistance and strength while adding scratch resistance and optical clarity. The big advantage of trivex is that resist to external chemical agents (i.e. 0. 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. acetone) while polycarbonate eyeglass lens is not. That means you do not need special UV-blocking lens coating to be protected from the harmful rays of the sun. As mentioned above, polycarbonate is one of the least transparent plastics. Polycarbonate was first introduced to the optical world in the late ’70s as an ophthalmic lens. Trivex traditionally costs more than double the price of polycarbonate. If you have finished prototyping and ready to move forward to the next step. You will find out that the two lens materials are used in different ways and for different purposes. 51 years experience Ophthalmology. Excessive external pressure placed on the lens causes light to be double or multiply refracted. On the other hand, Trivex has a better optical superiority with an Abbe value of 45. Polycarbonate lenses are thinner and lightweight than other plastic or glass materials. read this article we found about eye glass lenses: Even though Trivex has been available for a while now, there is still much debate and confusion about how Trivex and polycarbonate stack up against one another. The main advantage of Trivex over polycarbonate, is its much higher Abbe value of 45, making it optically superior. The scratch-resistant coating also enhances the strength of both Trivex and polycarbonate. Our A.B.O. Trivex also has a higher tensile strength. Trivex also has the best optical quality and is more suitable for use in drill-mount frames. When it comes to deciding on one lens material to use, you need to determine your requirements before jumping on either polycarbonate or Trivex. In optical clarity which measures the chromatic aberration, aka clarity, of a urethane-based that... 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