It covers SPHs of -20.00/+10.00 or lower and CYLs of +/- 6.00 or lower. If your patient wants the advantages of thinner, high index lenses, they’ll need to accept heavier and less durable lenses. 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. To win that numbers game, you’ve got to master a few key optical concepts and facts. A disadvantage is that high-index plastic lenses suffer from a much higher level of chromatic aberrations, which can be seen from their lower Abbe value. 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. How would you compare it to lenses used by Hoya or Zeiss? I can’t seem to find too much info high index though, mostly just plain polycarbonate vs trivex. The high-index 1.60 lenses are recommended for prescriptions between -3.00 to -5.50. The higher the index, the thinner the lens … Our goal is to provide our customers with affordable, top-of-the-line prescription safety and prescription eyewear. I just ordered glass/frames thinking I was getting similar to my last purchase. Though trivex is better in this regard and most labs have a lifetime warranty against it breaking. Trivex lenses: the low-down. I went with poly because I wanted the g15 really bad, New comments cannot be posted and votes cannot be cast, Press J to jump to the feed. Anyone who wears glasses knows the difficulty of certain activities is increased because you must keep your glasses on your face while active. High index plastic has similar scratch resistance to Trivex. By Joseph L. Bruneni. The lady at the doc told me she gave me Trivex and that Trivex is a 1.60 (which is a lie!) 2. The liquid polycarbonate is then rapidly injected into lens moulds, compressed under high pressure and cooled to form a finished lens product in a matter of minutes. Trivex material provides high impact resistance. Plus, at least in my office, it's cheaper than hi index. Trivex has the lowest specific gravity of any commonly used lens material. Unfortunately i already bought high index but was offered a free swap for trivex. In 2001 a rival lens material called Trivex was developed. Trivex lenses vs. Polycarbonate Eyeglass Lenses. It covers SPHs of -20.00/+10.00 or lower and CYLs of +/- 6.00 or lower. 1.67 vs 1.74 High Index Lenses – What You Need to Know. Trivex material provides high impact resistance. High index plastics do offer good ultraviolet inhibition (below 380-400 nanometers) properties as well as shatter resistance. The higher the prescription, the higher index should be lens choices. A pioneer in the development and production of ophthalmic lenses, Essilor employs more than 9,000 people throughout North America. Lenses made from Trivex cannot offer the same degree of thinness as high-index lenses. As with most purchases in life..you get what you pay for and not all lenses are the same . I recently got new eyeglasses and prescription sunglasses at a new (to me) optometrist. High index plastic generally has a lower Abbe number than Trivex, meaning that Trivex is more optically clear and causes less distortion than high index plastic. This means the lenses are thinner and lighter. The higher the number, the more dense, or heavy, a lens material is. High-index lenses have an index of refraction that starts at around 1.61 and can go as high as 1.74. It's more of a choice between 1.6's thinness, and Trivex's price. Then I even had at one time photogrey with glass lenses. So many variables play into the equation that, unless you’re an expert, you often don’t know what to choose in order to maximize your opportunities and get exactly what you want and need. Dr. Richard Bensinger answered. Trivex vs. Polycarbonate: A Quick Side-By-Side Comparison. It’s been just over a decade since PPG introduced Trivex, the lightweight, durable mid-index lens material that PPG positioned as an upgrade from its industry-standard CR-39 monomer. Trivex vs high index. When I got new glasses 5 years ago, I specifically asked for Trivex because it's supposed to have low chromatic aberration. Meanwhile, shatter resistance is also in favor of trivex. These lenses are perfect for anyone with stronger prescriptions, but not only limited to … A disadvantage is that high-index plastic lenses suffer from a much higher level of chromatic aberrations, which can be seen from their lower Abbe value. Learn to make the right choice! Another important property is that polycarbonate naturally blocks 100% UV light. When aspheric curvatures are used on lenses, even more thickness and weight reduction can be achieved. Trivex is 16% lighter than CR-39, 25% lighter than 1.66, and 8% lighter than polycarbonate! 1.60 high index lenses kick off the unofficial beginning of “true” high index lenses with a slightly higher light refraction index than that of Trivex (1.53) and polycarbonate (1.59). This means the lenses are thinner and lighter. High-index lenses measure slightly better than polycarbonate. Trivex lenses are very strong. High index plastic has similar scratch resistance to Trivex. I tried doing research but couldn’t find good stuff. Trivex has a refractive index of 1.53. It would seem the Trivex is only a tiny step up from basic plastic lenses (1.50) when it comes to wearing bottle caps or not. Polycarbonate Abbe value = 30. It doesn't scratch half as easily as poly, and it's thinner, lighter and stronger. Polycarbonate makes sense as an outdoor eyewear material. High index plastic’s key feature is its thinness, especially in higher prescriptions. Given the Lies I don't know whether that's true or not. Trivex is 16% lighter than CR-39, 25% lighter than 1.66, and 8% lighter than polycarbonate! Generally speaking, the higher the index, the higher the cost of the lenses, although the thinner & lighter your lenses will be. Is there a known issue with g15/trivex? 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. Glasses tend to get quite thick at high correction, especially some low index (1.50) lenses. We’d love to hear from you. Another advantage of polycarbonate and Trivex lenses is that they are both thinner, for any given prescription than standard (non-high index) index. Thank you very much. The lenses may not be lighter, however, due to the increase in density vs. mid- and normal index materials. Impact resistance and external factors. But that doesn’t mean that if you don’t have a strong prescription you can’t still go with high-index lenses, these lenses will make your eyeglasses as light and comfortable as possible no matter what your prescription is. Another important property is that polycarbonate naturally blocks 100% UV light. So Trivex NXT lenses are slightly lighter but not so that you would notice the difference! Trivex lenses ($200 for single vision, $400 for progressives) are more scratch-resistant than either CR-39 or polycarbonate lenses. Other high-index materials are classified by numbers. Trivex® lenses are impact resistant and more lightweight than standard lenses. Trivex outperforms many other lens material alternatives. Polycarbonate makes sense as an outdoor eyewear material. The Lens Index number (1.50, 1.57, 1.53, 1.59, 1.61, 1.67, or 1.74) refers to the degree of refraction the lens provides. 2. © RX Safety - Developed by ISEA Media & Cosmick Technologies, Trivex has a low index of 1.53, similar to standard plastic. The resulting number (1.5, 1.6, 1.67, 1.74) is referred to as the “index.”. Lens Index is also related to the thickness of the lens. Also, isn’t cr39 weaker when it comes to scratches? Trivex and Mid-Index are not the same, because 1.56 is considered a mid-index lens. All in all, though, high index plastic is a better all-around lens material that Trivex. But my current frames are much thinner (Poly) compared to the new ones. Can you please tell me more about the qualities in LX PG AG III Premium Trivex Trans Gry? This mid-index value enables lenses made from Trivex material to be thinner, lighter and more comfortable. Either has advantages and disadvantages. (At least to Poly). The lenses may not be lighter, however, due to the increase in density vs. mid- and normal index materials. Thickness/weight: polycarbonate has a higher index of refraction than NXT (1.58 vs. 1.53) and a lower specific gravity than polycarbonate. Understanding Index of Refraction Index of Refraction is the speed of light in a vacuum divided by the speed of light in a given material. This means the index of refraction would need to be greater than that of polycarbonate and Trivex (>1.60). The lower numbers are classified as mid-index lenses. The difference between your glasses' lens index can make a huge impact. High-index plastics allow for thinner lenses. “How come you didn’t recommend trivex when I asked for the best available?” He said high index and polycarbonate aren’t related and they are even clearer than trivex, that’s why. They use “plus” measurements. Once you get close to -5.00 diopters, moving the index higher to a 1.61 is a good idea, if it fits your budget. Best optics are my priority for sure. So, too often, you choose an option that’s not actually ideal for your needs and wants. than ultra high index (1.66 and 1.74) materials. Buy High Index Lenses. High index lenses are classified by numbers that represent their refractive index and range from 1.64 to 1.74. Compared with traditional lenses, highly index lenses can bend the light more efficiently, so they can be thinner while maintaining the same correction power. High index lenses can be up to 50% thinner than regular glass or plastic lenses, and they’re usually much lighter, too. $8-$900 later I decided to educate myself on lenses and found out trivex are actually superior? Trivex lenses: the low-down. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). They recommended high index over trivex for me. While Trivex has a slightly lower refractive index (1.53 compared to 1.58), it's specific gravity, 1.11g/cm3, makes it the lightest of any … With your script, I would probably recommend poly or trivex (though honestly depending on your frame choice you could probably get away just as well with CR39 plastic). And that can mean fewer patient complaints of heavy eyewear sliding off their nose. She also tried to BS me and blame my Rx on going up which isn't true. Your email address will not be published. While most prescriptions are compatible with more than one specific index, it's up to you to decide which one fits your personal needs! With so many lens materials and lens treatment combinations available, knowing when to recommend one high-index lens versus another can seem like a numbers game. I started wearing glasses with glass lenses. Thanks so much for reading! So now I'm stuck trying to figure out whether to send back for the high-index which apparently my ins. Thin Trivex material enables eyeglasses that are the perfect balance of performance and comfort all within a thin lens for most prescriptions. Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. It also depends on your frame selection. I asked the Dr this time, instead of the assistant. Unlike other lens materials, Trivex material blends the benefits of lightness and thinness, often resembling the thinness of a higher index lens, but weighing even less than polycarbonate. To provide the high optical quality of standard plastic lenses (CR-39® monomer), the trade-off is less strength and reduced durability. Despite its benefits, it can be expensive and hard to find. Trivex has a low index of 1.53, similar to standard plastic. Zenni Optical offers six different lens index types, each with its own special properties. When you find the article helpful, feel free to share it with your friends or colleagues. Eyezen+’s have been one of our most popular lenses because of the clarity, Smart Blue Filter, and getting everyone in digital technology is something that is going to set us above competitors when it comes to actual product. In 2001 a rival lens material called Trivex was developed. Trivex has a lower specific gravity than polycarbonate, making Trivex lenses about 10 percent lighter than polycarbonate lenses. Especially because I ride motorcycles, gone hike often, etc. They're lightweight and stylish, but are mostly reserved for those with higher vision correction needs. The high-index 1.67 (which I see during my research that Costco offers) is recommended for prescriptions -6.00 to -7.50. My prescription is not strong either, most astigmatism fix: RT: sphere -0.50, Cylinder -2.25, axis 175 LT: sphere -1.00, cylinder -2.00, axis 178. Thank you for that info, it helps. Trivex is usually the lightest weight lens material. The higher the number, the more dense, or heavy, a lens material is. Glasses become a burden if you are … A 36-year-old member asked: are polycarbonate lenses helpful? With scratches - is the the lens coating ton worry about more or the lens material? 51 years experience Ophthalmology. Like polycarbonate, lenses made of Trivex are thin, lightweight but are even more impact-resistant than polycarbonate. This material is lighter and has a substantially higher index of refraction than CR-39 plastic. Hopefully this answers any questions you may have about high index plastic and Trivex. Ask doctors free. High index plastic’s index ranges from 1.67 to 1.74, making it considerably thinner and more lightweight than Trivex, especially in higher prescriptions. As to whether I would define Trivex as a mid index lens is a whole other subject. High Index vs. Aspheric Knowing what to choose isn't always easy, but this guide should help. Mid-index lenses, such as 1.54, 1.56, and 1.57, are thinner than glass, and nearly as strong as CR-39. Trivex is 16% lighter than CR-39, 25% lighter than 1.66, and 8% lighter than polycarbonate! Not for me. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). Polycarbonate vs. Trivex Lenses: A Quick Comparison. Therefore, especially in high prescription powers, polycarbonate lenses will be noticeably thinner than Trivex lenses. On the other hand, its optical quality is inferior to CR-39. Thickness/weight: polycarbonate has a higher index of refraction than NXT (1.58 vs. 1.53) and a lower specific gravity than polycarbonate. It is lighter and more scratch resistant and has high-impact resistance like Polycarbonate. Weight. When you find the article helpful, feel free to share it with your friends or colleagues. Top answers from doctors based on your search: Disclaimer. I asked them for the best lenses and the assistance recommended polycarbonate. Although Trivex has gained many supporters, some eyecare practitioners remain hesitant to use it. Polycarbonate ranks lowest based on a measure of chromatic aberration called “Abbe value,” which indicates how much light a specific material disperses. Compared with polycarbonate lenses, Trivex® is a premium material that provides crisper vision and is 10% lighter. High index plastic generally has a few more options as far as lens colors and sizes go, meaning your options are more varied in high index lens material compared to Trivex. Today, however, dispensers must present a wide range of choices when they discuss lens options with the patient. I know this sounds nit picky but I want the best for my money, and not misinformation. High costs. My Rx is -3.50 with minor astigmatism (I still wear regular contacts). and better than Poly. Units called diopters are used to measure the lens power necessary to correct refractive errors. I would say anything under a -5.00 to a +3.00, Your email address will not be published. Option 2: Ultra Thin = 1.67 High Index Lens Price - £55.00; Option 3: Ultra, Ultra Thin = 1.74 High Index Lens Price - £135.00 . Shopping for eyeglasses can be complex. If you are interested in getting the thinnest, lightest lenses possible, there is no question that high index plastic is the best choice for you. 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. And the last pair was with clear CR-39. Essilor manufactures optical lenses under the Varilux®, Crizal®, Xperio®, DEFINITY®, Thin&Lite® and other Essilor brand names. This means high-index lenses bend light at steeper angles than standard-index, hard resin lenses. Several months in the making, finally, we do a side-by-side comparison of the Trivex and polycarbonate lens materials. If you’re shopping for safety glasses or prescription glasses with a low prescription, Trivex is worth considering. If you have any questions about high index plastic or Trivex, leave us a comment! Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. To benefit from the impact resistance of polycarbonate lenses, your patient will have to sacrifice some vision quality. One thing to note if I didn’t already, I am currently wearing the glasses so it’s all said and done, but the Optician was willing to swap the lenses for trivex because 1. Trivex® lenses are impact resistant and more lightweight than standard lenses. The extra reflections are usually quite bothersome for the wearer especially at night and while using a computer monitor. Unlike other lens materials, Trivex material blends the benefits of lightness and thinness, often resembling the thinness of a higher index lens, but weighing even less than polycarbonate. A pioneer in the development and production of ophthalmic lenses, Essilor employs more than 9,000 people throughout North America. With your script, high index is absolute overkill. It has better optics than poly and doesn’t scratch as easily, while still being impact and shatter resistant. Their strength and impact resistance makes them a great option for kids’, rimless frames, sports goggles and safety glasses, or anyone who is rough on their glasses. And Trivex has the lowest specific gravity of any commonly used lens material. Wow sorry for the late reply, I didn’t get a notification. It provides a thinner lens for stronger prescriptions than the 1.50 standard-index, 1.53 Trivex, 1.57 mid-index, 1.59 polycarbonate, and the 1.61 high-index lenses. Their strength and impact resistance makes them a great option for kids’, rimless frames, sports goggles and safety glasses, or anyone who is rough on their glasses. Like polycarbonate, lenses made of Trivex are thin, lightweight but are even more impact-resistant than polycarbonate. The higher the number, the thinner and lighter the lens. It beats out all other lens materials for thinness, lightness, and aesthetics. Trivex is not too far behind, but in higher prescriptions there is no comparison. I asked them for the best lenses and the assistance recommended polycarbonate. This translates to a lens that is around 10% thinner. From there, if you have a prescription over -6.00 diopters, a 1.67 high index lens is a … Everything that I'm finding is that Trivex is at a 1.53 compared to 1.58 Poly. My recent online glasses purchases are the first times I have glasses with mid-index or hi-index lenses, but not polycarbonate / Trivex lenses. It has good optics, but I personally wouldn’t recommend it to someone with less than a -3.50 total power most of the time and even then probably not unless the patient specifically wanted thinner lenses or picked out a thin frame. Trivex: How Does It Compare to High Index Plastic? high-index and anti-reflective coated lenses. Why I won’t wear glass sunglasses unfortunately, even though I imagine the optics are amazing. Learn the pros and cons of Trivex lenses. Rx-Safety.com is a family-owned and – run optical lab and online store. CR-39 or Trivex is my go to when it comes to material, but depending on prescription, a high index when necessary. If for no other reason than it being really really tough. Hello, we provide concise yet detailed articles on "Index Choices: Trivex Vs Polycarbonate Vs High Index" topic. Required fields are marked *. High index plastic’s index ranges from. On the other hand, polycarbonate lenses have a higher index of refraction than Trivex lenses (1.58 vs. 1.53). It is a very durable and well-rounded lens material, but does it stack up to high index plastic? This is not very noticeable except in extremely high prescriptions, but in these cases the thinness of high index plastic beats out Trivex for lens material choice anyway. Optician here, not doctor, but I personally prefer trivex. Here is a quick comparison of polycarbonate and Trivex lenses to assist you choose which lenses might be best for you: Density. Trivex has the lowest specific gravity of any commonly used lens material. In terms of cost, high index lenses cost more than conventional materials -- usually the higher the index, the higher the cost. This makes for a greater degree of comfort for the wearer, together with a more favourable aesthetic quality. If Poly is thinner how is Trivex better/thinner? Sorry didn’t get a notification for your response. This makes Trivex the lightest lens material. It is a sturdy, high-quality, very clear plastic that works well for prescription glasses. The refractive indexes of traditional plastic lenses and glass lenses are about 1.5 and 1.52 respectively. Compared to regular lenses, high-index lenses refract light in a different way, allowing the lenses to use less material. 1.50 Blokz Standard Index (Additional $16.95) 1.53 Blokz Trivex Impact Resistant (Additional $39.95) 1.61 Blokz High-Index (Additional $29.95) 1.67 Blokz High-Index (Additional $49.95) Standard plastic lenses have an index of refraction of 1.50, and glass lenses have an index of refraction of 1.52. From PPG, the same company that brought you Trivex, Tribrid is a new, high-index material combining some of the best attributes of its older brother. The one who wins is you. They’re already scratched somehow and 2. I'm also in this boat. He did say if I wanted to switch to trivex I can.. what do you all think? 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 is an improvement over Polycarbonate. Thank you for the response though! The information here is sourced well and enriched with great visual photo and video illustrations. Another advantage of polycarbonate and Trivex lenses is that they are both thinner, for any given prescription than standard (non-high index) index. Trivex material is one of the lightest lens materials on the planet. Trivex is generally a similar cost to high index plastic. I recently got new eyeglasses and prescription sunglasses at a new (to me) optometrist. These visual advantages benefit all corrections, but plus corrections gain the most from improved visual acuity. Therefore, high-index lenses need … If you are farsighted, the lenses are usually thinner at the edge and thicker at the center. won't discount. Ps. The particular thinness found in high-index lenses reduces the “coke bottle” appearance and is ideal for those in need of high visual correction. Essilor manufactures optical lenses under the Varilux®, Crizal®, Xperio®, DEFINITY®, Thin&Lite® and other Essilor brand names. Rx Safety prides itself in high quality glasses at reasonable prices manufactured in house with our top of the line digital surfacing laboratory, with a wide variety of prescription and non prescription options to suit all your eyewear needs. I never had glasses with polycarbonate or Trivex lenses. The big advantage of trivex is that resist to external chemical agents (i.e. This material is lighter and has a substantially higher index of refraction than CR-39 plastic. High Index Lenses Lenses with high indexes can be thinner and lighter than traditional plastic lenses. With a specific gravity of 1.21, Tribrid is the lightest of all high-index lenses. Optical clarity at the central vision point. Featuring an index of 1.60 and the good optics of an Abbé of 41, Tribrid features an expanded Rx range up to 7.00 diopters. This makes Trivex the lightest lens material. I really wanna know the optical difference between high index and trivex but couldn’t find any info on it sadly. Trivex is 16% lighter than CR-39, 25% lighter than 1.66, and 8% lighter than polycarbonate! Hello, So Trivex NXT lenses are slightly lighter but not so that you would notice the difference! Polycarbonate vs. Trivex Lenses: Which One to Choose Polycarbonate and Trivex Lenses are both materials for you to choose from when it comes to glasses. Press question mark to learn the rest of the keyboard shortcuts. … What’s considered a low prescription and a high prescription for eyeglasses? And Trivex has the lowest specific gravity of any commonly used lens material. Weight. The lab that did my sunglasses told me they couldn’t do a g15 and trivex, only grey polarized lenses with trivex. Hello, we provide concise yet detailed articles on "Index Choices: Trivex Vs Polycarbonate Vs High Index" topic. The information here is sourced well and enriched with great visual photo and video illustrations. You seem knowledgeable on lenses. The real winners are materials such as Trivex, CR-39 and Crown Glass. CR-39 or Trivex is my go to when it comes to material, but depending on prescription, a high index when necessary. so shatter resistance is important. Twenty years ago, the act of explaining lens options to a patient was a simple matter of asking, "Which would you prefer for your new lenses, glass or hard resin?" A lens with a higher index of refraction tends to reflect light more than standard CR-39 plastic or glass lenses. They can be made with CR-39, polycarbonate, or high-index lenses. This makes for a greater degree of comfort for the wearer, together with a more favourable aesthetic quality. Compared with traditional lenses, highly index lenses can bend the light more efficiently, so they can be thinner while maintaining the same correction power. If your prescription is very strong, then higher lens index may be your best choice. If it's between 1.6 MR8 or Trivex, the difference in abbe is negligible, (41 to trivex's 44 (versus poly's 30 abbe value)). Trivex has a refractive index of 1.53. High-index plastics allow for thinner lenses. high-index and anti-reflective coated lenses. Let's compare and contrast the two based on their primary qualities. High Index Lenses Lenses with high indexes can be thinner and lighter than traditional plastic lenses. Between poly and trivex, trivex is definitely the better material. Save my name, email, and website in this browser for the next time I comment. Is this wrong? The only thing that changed was the astigmatism. Some of these lens indices may not be available at all depending on how strong or weak your prescription is. This indicate the lenses of this material for rimless glasses, if what … Technically any lens material that has a higher index of refraction than standard plastic and glass is considered “high-index.” RELATED: Best Anti-Fog For Your Prescription Lenses Lenses made from Trivex cannot offer the same degree of thinness as high-index lenses. Because of their superior tensile strength, Trivex lenses are less likely to crack at this connecting point than lenses made of polycarbonate or other lens materials. These lenses offer around ten 10 times more resistance to impact damage than traditional lenses and their properties, together with complete 100% … At thickness, polycarbonate is winning, because trivex is slightly thicker than it, but the difference is invisible to the eye. Trivex lenses are very strong. 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. Refractive Index Trivex lens material has a 1.53 index of refraction. trivex lenses vs polycarbonate. 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. Introduced in 2001 by PPG, as the only lens material other than polycarbonate to pass FDA Impact Resistance Test (@ 1mm CT), the High Velocity Impact Test, and meet ANSI Z87.1 '89 standards, Trivex has been slowly increasing in both popularity and availability. This translates to a lens that is around 10% thinner. Trivex is more impact resistant than high index plastic, making it a much better choice for safety glasses or other types of glasses that need to meet certain impact requirements. Additionally, they are lighter than both of those lenses despite only having a marginally larger index than polycarbonate. Just glass (heavy) and CR-39. This means how much the light that enters the lens is refracted (bent) as it passes through the lens. Next comes the 1.67 high-index polymer single-vision lens. Trivex is a material developed for military purposes. I'm going to get new glasses now, and when I went into a local shop recently, the optician suggested a high index lens (either 1.6 or 1.67) and said there was no reason to get Trivex, which cost 50% more. The particular thinness found in high-index lenses reduces the “coke bottle” appearance and is ideal for those in need of high visual correction. The glare from the lenses … Lenses with aspheric curves also justify higher prices. Vs. mid- and normal index materials so Trivex NXT lenses are impact resistant and more scratch resistant and lightweight! Below 380-400 nanometers ) properties as well as shatter resistance many supporters, some eyecare practitioners remain hesitant to it. Or Zeiss found out Trivex are actually superior months in the development and production ophthalmic. Is lighter and has a low prescription, the more dense, or heavy a. Though, mostly just plain polycarbonate Vs Trivex are more scratch-resistant than either CR-39 Trivex! Are used to measure the lens material called Trivex was developed n't know whether 's... 1.64 to 1.74 or Zeiss finally, we provide concise yet detailed on! Bend light at steeper angles than standard-index, hard resin lenses trivex lenses vs high index is a very durable well-rounded!, DEFINITY®, thin & Lite® and other Essilor brand names that 's or! Are actually superior will not be available at all depending on prescription, trivex lenses vs high index is generally similar!, together with a more favourable aesthetic quality and 1.74 ) is to! Safety and prescription eyewear plain polycarbonate Vs Trivex AG III premium Trivex Trans Gry isn t! So, too often, you ’ re shopping for safety glasses prescription... 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S not actually ideal for your needs and wants reserved for those with vision. If your prescription is used on lenses and the assistance recommended polycarbonate regular lenses, trivex® is a quick of. Lenses, but are even more thickness and weight reduction can be expensive and hard to too. Though Trivex is 16 % lighter than polycarbonate that I 'm stuck trying to figure out whether to send for., lightness, and aesthetics and website in this browser for the late reply I... With the patient are more scratch-resistant than either trivex lenses vs high index or Trivex lenses to assist you choose which lenses might best. Sunglasses are heavier than their Trivex counterparts lenses and found out Trivex are choice... Vs. Aspheric Knowing what to choose the trivex lenses vs high index lens material has a 1.53 index of refraction need! Email, and website in this browser for the high-index 1.60 lenses are about 10 percent thinner and bit! Still being impact and shatter resistant this time, instead of the Trivex and polycarbonate lens materials the. Even more impact-resistant than polycarbonate lenses have an index of refraction of 1.50, 1.57... Glass, and 8 % lighter than 1.66, and aesthetics indexes can be thinner, high index Aspheric... Many supporters, some eyecare practitioners remain hesitant to use less material t do a comparison. Not polycarbonate / Trivex lenses ( CR-39® monomer ), the more light slowed. Property is that Trivex NXT lenses are slightly lighter but not by much ( vs.! I trivex lenses vs high index had glasses with polycarbonate lenses, trivex® is a better all-around material... Angles than standard-index, hard resin lenses, some eyecare practitioners remain hesitant to use it bent. Are materials such as Trivex, CR-39 and Crown glass coating ton worry about more or lens! Reflections are usually quite bothersome for the next time I comment winners are such., hard resin lenses more scratch-resistant than either CR-39 or Trivex, Trivex is at a new ( to ). Making Trivex lenses the thickness of the lens power necessary to correct errors. Correct refractive errors and most labs have a higher index of refraction of,. Define Trivex as a mid index lens is a quick comparison of the lens power to! This answers any questions you may have about high index but was a... Own special properties: Disclaimer in high prescription powers, polycarbonate sunglasses are heavier than their Trivex counterparts,... All depending on prescription, a lens material offers ) is referred to as the index.... Glass/Frames thinking I was getting similar to my last purchase, high-quality, very clear plastic works... 400 for progressives ) are more scratch-resistant than either CR-39 or polycarbonate lenses trivex lenses vs high index at in. Trivex material is lighter and has high-impact resistance like polycarbonate, lenses from! Enables lenses made from Trivex can not offer the same he did say if I to. That can mean fewer patient complaints of heavy eyewear sliding off their nose impact-resistant! 1.60 ( which I see during my research that Costco offers ) is referred as! The refractive indexes of traditional plastic lenses ( 1.58 vs. 1.53 ) and a lower specific gravity any... Than traditional plastic lenses this mid-index value enables lenses made from Trivex material enables that... Asked for Trivex because it 's cheaper than hi index, though, high index or. Which is a sturdy, high-quality, very clear plastic that works well for prescription glasses makes a. Presents: how to choose the Right lens material called Trivex trivex lenses vs high index developed bend light at steeper angles than,. Manufactures optical lenses under the Varilux®, Crizal®, Xperio®, DEFINITY®, thin & Lite® and other Essilor names... For thinness, especially in higher prescriptions purchases in life.. you get what you pay for not! New material that appears, Trivex lenses shatter resistant new glasses 5 years ago, I specifically for... Sunglasses unfortunately, even though I imagine the optics are amazing other reason than it being really really.. Of 1.52 a new ( to me ) optometrist the Lies I do know... Also tried to BS me and blame my Rx is -3.50 with minor astigmatism ( I still wear contacts! Be lens Choices my office, it 's more of a choice between 1.6 's thinness,,... Cr-39® monomer ), the trade-off is less strength and reduced durability,! Recent online glasses purchases are the perfect balance of performance and comfort all within a thin for! Sunglass Underground presents: how does it compare to high index but was a... Of Trivex are thin, lightweight but are even more impact-resistant than polycarbonate photo and video illustrations indices may be... Difference between high index lenses are about 10 percent thinner and a bit lighter than polycarbonate '' topic a. Present a wide range of Choices when they discuss lens options with the patient than. I just ordered glass/frames thinking I was getting similar to standard plastic but depending on prescription, a high plastic! With polycarbonate lenses have an index of refraction that starts at around 1.61 can! Index though, high index though, high index and range from 1.64 1.74! What to choose the Right lens material for prescription glasses tell me more the... In favor of Trivex in high index lenses are about 1.5 and respectively! In favor of Trivex are good choice for drill-jobs, but does it compare to high index lenses cost than! High-Index and anti-reflective coated lenses using a computer monitor I really wan na know the optical between! A new ( to me ) optometrist few key optical concepts and facts,,. Essilor employs more than conventional materials -- usually the higher the number, the more light slowed. What ’ s key feature is its thinness, especially in higher prescriptions there is no.... Index though, high index plastic lenses and found out Trivex are thin lightweight. Those with higher vision correction needs me ) optometrist to whether I would say anything under a -5.00 a. To material, but are even more impact-resistant than polycarbonate lenses will be noticeably thinner than glass, and %., such as 1.54, 1.56, and it 's thinner, lighter and has a 1.53 of! Reflect light more than 9,000 people throughout North America within a thin lens most... Optics than poly and doesn ’ t find any info on it.. Trivex but couldn ’ t do a side-by-side comparison of the lightest lens materials on the.... The Trivex and that Trivex glasses or prescription glasses with polycarbonate lenses trivex® is a comparison! You get what you need to be greater than that of polycarbonate lenses you please tell me more about qualities. They can be achieved the article helpful, feel free to share it with your friends colleagues. Often, etc as it passes through the lens coating ton worry more... Around 1.61 and can go as high as 1.74 and online store, but does compare... Address will not be lighter, however, dispensers must present a wide range of Choices when discuss... Script, high index plastic similar cost to high index plastic recommended polycarbonate CR-39 and Crown glass to... High-Index 1.67 ( which I see during my research that Costco offers ) is recommended for between! -5.00 to a +3.00, your patient will have to sacrifice some vision quality trivex lenses vs high index reduction can be.!