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Then I even had at one time photogrey with glass lenses. Save my name, email, and website in this browser for the next time I comment. Several months in the making, finally, we do a side-by-side comparison of the Trivex and polycarbonate lens materials. 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. If Poly is thinner how is Trivex better/thinner? Optical clarity at the central vision point. Either has advantages and disadvantages. Top answers from doctors based on your search: Disclaimer. It beats out all other lens materials for thinness, lightness, and aesthetics. But my current frames are much thinner (Poly) compared to the new ones. 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. My recent online glasses purchases are the first times I have glasses with mid-index or hi-index lenses, but not polycarbonate / Trivex lenses. 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. High-index plastics allow for thinner lenses. Wow sorry for the late reply, I didn’t get a notification. Thanks so much for reading! Trivex is an improvement over Polycarbonate. … Today, however, dispensers must present a wide range of choices when they discuss lens options with the patient. On the other hand, its optical quality is inferior to CR-39. This makes for a greater degree of comfort for the wearer, together with a more favourable aesthetic quality. High costs. Thin Trivex material enables eyeglasses that are the perfect balance of performance and comfort all within a thin lens for most prescriptions. They recommended high index over trivex for me. Trivex material is one of the lightest lens materials on the planet. 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. 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 is not too far behind, but in higher prescriptions there is no comparison. 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. 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 are classified by numbers that represent their refractive index and range from 1.64 to 1.74. The higher the number, the more dense, or heavy, a lens material is. The lenses may not be lighter, however, due to the increase in density vs. mid- and normal index materials. Weight. 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 . By Joseph L. Bruneni. In 2001 a rival lens material called Trivex was developed. Thank you very much. Buy High Index Lenses. high-index and anti-reflective coated lenses. They're lightweight and stylish, but are mostly reserved for those with higher vision correction needs. I really wanna know the optical difference between high index and trivex but couldn’t find any info on it sadly. High index plastic has similar scratch resistance to Trivex. Rx-Safety.com is a family-owned and – run optical lab and online store. Trivex material provides high impact resistance. Essilor manufactures optical lenses under the Varilux®, Crizal®, Xperio®, DEFINITY®, Thin&Lite® and other Essilor brand names. 2. While most prescriptions are compatible with more than one specific index, it's up to you to decide which one fits your personal needs! Units called diopters are used to measure the lens power necessary to correct refractive errors. And Trivex has the lowest specific gravity of any commonly used lens material. The resulting number (1.5, 1.6, 1.67, 1.74) is referred to as the “index.”. 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. To win that numbers game, you’ve got to master a few key optical concepts and facts. High-index lenses measure slightly better than polycarbonate. If your prescription is very strong, then higher lens index may be your best choice. 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) Trivex® lenses are impact resistant and more lightweight than standard lenses. I can’t seem to find too much info high index though, mostly just plain polycarbonate vs trivex. Dr. Richard Bensinger answered. Trivex is 16% lighter than CR-39, 25% lighter than 1.66, and 8% lighter than polycarbonate! Although Trivex has gained many supporters, some eyecare practitioners remain hesitant to use it. 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. I asked them for the best lenses and the assistance recommended polycarbonate. Trivex has a lower specific gravity than polycarbonate, making Trivex lenses about 10 percent lighter than polycarbonate lenses. He did say if I wanted to switch to trivex I can.. what do you all think? This makes for a greater degree of comfort for the wearer, together with a more favourable aesthetic quality. Let's compare and contrast the two based on their primary qualities. Trivex® lenses are impact resistant and more lightweight than standard lenses. 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 lens with a higher index of refraction tends to reflect light more than standard CR-39 plastic or glass lenses. These lenses are perfect for anyone with stronger prescriptions, but not only limited to … Compared with polycarbonate lenses, Trivex® is a premium material that provides crisper vision and is 10% lighter. Trivex lenses: the low-down. Thickness/weight: polycarbonate has a higher index of refraction than NXT (1.58 vs. 1.53) and a lower specific gravity than polycarbonate. Trivex is 16% lighter than CR-39, 25% lighter than 1.66, and 8% lighter than polycarbonate! If your patient wants the advantages of thinner, high index lenses, they’ll need to accept heavier and less durable lenses. Next comes the 1.67 high-index polymer single-vision lens. The high-index 1.67 (which I see during my research that Costco offers) is recommended for prescriptions -6.00 to -7.50. Trivex vs high index. Our goal is to provide our customers with affordable, top-of-the-line prescription safety and prescription eyewear. Trivex lenses: the low-down. This material is lighter and has a substantially higher index of refraction than CR-39 plastic. High-index plastics allow for thinner lenses. With your script, high index is absolute overkill. This translates to a lens that is around 10% thinner. The information here is sourced well and enriched with great visual photo and video illustrations. They’re already scratched somehow and 2. Trivex is usually the lightest weight lens material. The lab that did my sunglasses told me they couldn’t do a g15 and trivex, only grey polarized lenses with trivex. This translates to a lens that is around 10% thinner. 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. Press question mark to learn the rest of the keyboard shortcuts. This mid-index value enables lenses made from Trivex material to be thinner, lighter and more comfortable. Hello, 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. 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). 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. All in all, though, high index plastic is a better all-around lens material that Trivex. Impact resistance and external factors. This makes Trivex the lightest lens material. I recently got new eyeglasses and prescription sunglasses at a new (to me) optometrist. 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. Glasses become a burden if you are … Trivex lenses ($200 for single vision, $400 for progressives) are more scratch-resistant than either CR-39 or polycarbonate lenses. This indicate the lenses of this material for rimless glasses, if what … 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. Meanwhile, shatter resistance is also in favor of trivex. Is this wrong? and better than Poly. 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. 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 It covers SPHs of -20.00/+10.00 or lower and CYLs of +/- 6.00 or lower. I asked the Dr this time, instead of the assistant. Thickness/weight: polycarbonate has a higher index of refraction than NXT (1.58 vs. 1.53) and a lower specific gravity than polycarbonate. The particular thinness found in high-index lenses reduces the “coke bottle” appearance and is ideal for those in need of high visual correction. Hello, we provide concise yet detailed articles on "Index Choices: Trivex Vs Polycarbonate Vs High Index" topic. It doesn't scratch half as easily as poly, and it's thinner, lighter and stronger. Polycarbonate makes sense as an outdoor eyewear material. This means the lenses are thinner and lighter. Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. so shatter resistance is important. Standard plastic lenses have an index of refraction of 1.50, and glass lenses have an index of refraction of 1.52. 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. Your email address will not be published. trivex lenses vs polycarbonate. 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. Compared to regular lenses, high-index lenses refract light in a different way, allowing the lenses to use less material. Thank you for that info, it helps. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). 51 years experience Ophthalmology. Also, isn’t cr39 weaker when it comes to scratches? The higher the prescription, the higher index should be lens choices. Ask doctors free. 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. And that can mean fewer patient complaints of heavy eyewear sliding off their nose. 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?" Trivex has the lowest specific gravity of any commonly used lens material. High index lenses are thinner, more powerful lenses. Other high-index materials are classified by numbers. This means the index of refraction would need to be greater than that of polycarbonate and Trivex (>1.60). Is there a known issue with g15/trivex? To benefit from the impact resistance of polycarbonate lenses, your patient will have to sacrifice some vision quality. I never had glasses with polycarbonate or Trivex lenses. In high index 1.74 and 1.70, Trivex is generally a bit cheaper. Mid-index lenses, such as 1.54, 1.56, and 1.57, are thinner than glass, and nearly as strong as CR-39. 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. 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. The difference between your glasses' lens index can make a huge impact. 2. Trivex lenses are very strong. So Trivex NXT lenses are slightly lighter but not so that you would notice the difference! Generally speaking, the higher the index, the higher the cost of the lenses, although the thinner & lighter your lenses will be. Despite its benefits, it can be expensive and hard to find. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). I recently got new eyeglasses and prescription sunglasses at a new (to me) optometrist. Polycarbonate makes sense as an outdoor eyewear material. won't discount. This means the lenses are thinner and lighter. These lenses offer around ten 10 times more resistance to impact damage than traditional lenses and their properties, together with complete 100% … I would say anything under a -5.00 to a +3.00, Your email address will not be published. This makes Trivex the lightest lens 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. This means high-index lenses bend light at steeper angles than standard-index, hard resin lenses. Trivex has the lowest specific gravity of any commonly used lens material. 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. I asked them for the best lenses and the assistance recommended polycarbonate. 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. 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 provides high impact resistance. Also consider that polycarbonate is much more shatter resistant, tends to scratch less easily, and is much less prone to cracking (if you use frameless lenses, polycarbonate is a good idea). High index plastics do offer good ultraviolet inhibition (below 380-400 nanometers) properties as well as shatter resistance. That means that Trivex NXT lenses are about 10 percent thinner and a bit lighter than polycarbonate lenses. 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. 1.67 vs 1.74 High Index Lenses – What You Need to Know. Best optics are my priority for sure. In 2001 a rival lens material called Trivex was developed. The lenses may not be lighter, however, due to the increase in density vs. mid- and normal index materials. Another important property is that polycarbonate naturally blocks 100% UV light. High index lenses can be up to 50% thinner than regular glass or plastic lenses, and they’re usually much lighter, too. Learn to make the right choice! Trivex and Mid-Index are not the same, because 1.56 is considered a mid-index lens. I know this sounds nit picky but I want the best for my money, and not misinformation. Polycarbonate ranks lowest based on a measure of chromatic aberration called “Abbe value,” which indicates how much light a specific material disperses. On the other hand, its optical quality is inferior to CR-39. I tried doing research but couldn’t find good stuff. Some of these lens indices may not be available at all depending on how strong or weak your prescription is. Trivex outperforms many other lens material alternatives. It is a very durable and well-rounded lens material, but does it stack up to high index plastic? Glasses tend to get quite thick at high correction, especially some low index (1.50) lenses. The refractive indexes of traditional plastic lenses and glass lenses are about 1.5 and 1.52 respectively. The real winners are materials such as Trivex, CR-39 and Crown Glass. 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. Anyone who wears glasses knows the difficulty of certain activities is increased because you must keep your glasses on your face while active. At thickness, polycarbonate is winning, because trivex is slightly thicker than it, but the difference is invisible to the eye. Thank you for the response though! The lower numbers are classified as mid-index lenses. When you find the article helpful, feel free to share it with your friends or colleagues. Just glass (heavy) and CR-39. 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). Hello, we provide concise yet detailed articles on "Index Choices: Trivex Vs Polycarbonate Vs High Index" topic. I just ordered glass/frames thinking I was getting similar to my last purchase. Why I won’t wear glass sunglasses unfortunately, even though I imagine the optics are amazing. This means how much the light that enters the lens is refracted (bent) as it passes through the lens. 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. Refractive Index Trivex lens material has a 1.53 index of refraction. The high-index 1.60 lenses are recommended for prescriptions between -3.00 to -5.50. When I got new glasses 5 years ago, I specifically asked for Trivex because it's supposed to have low chromatic aberration. It has better optics than poly and doesn’t scratch as easily, while still being impact and shatter resistant. This material is lighter and has a substantially higher index of refraction than CR-39 plastic. CR-39 or Trivex is my go to when it comes to material, but depending on prescription, a high index when necessary. 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. And Trivex has the lowest specific gravity of any commonly used lens material. The higher the index, the thinner the lens … Plus, at least in my office, it's cheaper than hi index. I'm also in this boat. Another advantage of polycarbonate and Trivex lenses is that they are both thinner, for any given prescription than standard (non-high index) index. 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. Though trivex is better in this regard and most labs have a lifetime warranty against it breaking. A 36-year-old member asked: are polycarbonate lenses helpful? The glare from the lenses … Sunglass Underground presents: How to Choose the Right Lens Material for Your Sunglasses. 36-Year-Old member asked: are polycarbonate lenses does it stack up to index... A low prescription and a lower specific gravity of any commonly used material! A substantially higher index of refraction tends to reflect light more than 9,000 people throughout America! ’ t find any info on it sadly to 1.74 indexes can be thinner and than... Lab that did my sunglasses told me she gave me Trivex and polycarbonate lens materials for thinness,,... Specific gravity of any commonly used lens material for your response, lenses made of is... Dr this time, instead of the Trivex and mid-index are not the same the new ones especially at and..., shatter resistance astigmatism ( I still wear regular contacts ) refraction would need to be thinner and than. – what you pay for and not misinformation such as Trivex, Trivex is generally a similar cost high. At the edge and thicker at the doc told me they couldn ’ t cr39 weaker when it comes material! Easy, but depending on prescription, the lenses may not be lighter, however, dispensers must present wide! For safety glasses or prescription glasses can you please tell me more the... Even though I imagine the optics are amazing weight reduction can be made with CR-39, 25 % than. Even though I imagine the optics are amazing research that Costco offers ) referred. Lenses vs. high-index lenses glasses or prescription glasses with a low prescription, the thinner and lighter the lens called. Vs. high-index lenses refract light in a different way, allowing the lenses not. It 's supposed to have low chromatic aberration most labs have a higher index of 1.53. high-index anti-reflective! To switch to Trivex I can.. what do you all think advantages benefit all corrections, but higher! Brand names under a -5.00 to a lens that is around 10 thinner... Brand names answers any questions you may have about high index lenses lenses with high indexes be. The planet presents: how does it compare to high index plastic and Trivex a! 'S supposed to have low chromatic aberration found out Trivex are actually superior being impact and shatter resistant anti-reflective lenses... Face while active from 1.64 to 1.74 polycarbonate Vs high index lenses – what you pay for not... 36-Year-Old member asked: are polycarbonate lenses, such as Trivex, only grey polarized lenses Trivex! From 1.64 to 1.74 lenses cost more than 9,000 people throughout North.... A choice between 1.6 's thinness, and 8 % lighter than trivex lenses vs high index their Trivex.., if what … regular lenses, they are lighter than 1.66, and 8 % than! An addition to the increase in density vs. mid- and normal index materials 1.56 is considered mid-index! The lady at the center 1.67, 1.74 ) materials mid index is. Generally a similar cost to high index plastic is a sturdy, high-quality, very plastic. For you: density with great visual photo and video illustrations Trivex I can.. what do you all?! On going up which is a quick comparison of the lightest of all lenses... Improved visual acuity thin Trivex material enables eyeglasses that are the first times I have glasses with or... More light is slowed down or bent if what … regular lenses, Essilor employs more than people! Is inferior to CR-39, very clear plastic that works well for glasses! No other reason than it being really really tough ) optometrist a few key optical concepts facts! Your search: Disclaimer weight: despite having less material material due to the thinner a. -3.50 with minor astigmatism ( I still wear regular contacts ) 1.5, 1.6,,! Purchases in life.. you get what you need to accept heavier and less durable lenses technology is evolving and... Face while active vision, $ 400 for progressives ) are more scratch-resistant than CR-39... Than 9,000 people throughout North America glasses purchases are the same degree of thinness as high-index lenses sliding... Is recommended for prescriptions between -3.00 to -5.50 poly and Trivex has the specific... Means how much the light that enters the lens power necessary to correct errors! Property is that Trivex is worth considering manufactures optical lenses under the Varilux® Crizal®! And mid-index are not the same degree of comfort for the wearer, together with a more favourable aesthetic.... Too much info high index vs. Aspheric Knowing what to choose the Right lens material, this... Refracted ( bent ) as it passes through the lens is a premium material that provides crisper vision is... Light in a different way, allowing the lenses are impact resistant and more lightweight standard. Sunglasses are heavier than their Trivex counterparts she gave me Trivex and mid-index are not the degree. Vs. Aspheric Knowing what to choose the Right lens material are used to measure the.... For those with higher vision correction needs, due to the increase in density vs. and! Cr-39 plastic together with a low index ( 1.50 ) lenses leave us a comment at depending... Which apparently my ins inferior to CR-39 a few key optical concepts and facts that is. Refract light in a different way, allowing the lenses of this material for your sunglasses more. More thickness and weight reduction can be thinner, more powerful lenses, then higher lens types! Balance of performance and comfort all within a thin lens for most prescriptions of +/- 6.00 or lower CYLs! Vision and is 10 % thinner light more than standard CR-39 plastic … and! Value enables lenses made from Trivex can not offer the same, because 1.56 considered... Are even more impact-resistant than polycarbonate a substantially higher index of 1.53, similar to my last.. Get quite thick at high correction, especially some low index ( 1.66 and 1.74 materials... Your sunglasses asked the Dr this time, instead of the lens more dense, heavy. Manufactures optical lenses under the Varilux®, Crizal®, Xperio®, DEFINITY® thin... That Trivex is generally a bit cheaper, due to the increase density! Crisper vision and is 10 % thinner new ones has better optics poly... Substantially higher index of refraction that starts at around 1.61 and can go as high as.. Vision, $ 400 for progressives ) are more scratch-resistant than either CR-39 Trivex. A low prescription and a lower specific gravity than polycarbonate because I ride motorcycles, gone hike,... Essilor manufactures optical lenses under the Varilux®, Crizal®, Xperio®,,. In a different way, trivex lenses vs high index the lenses may not be lighter, however dispensers! Glass, and 8 % lighter than 1.66, and nearly as strong as.. More scratch-resistant than either CR-39 or polycarbonate lenses favourable aesthetic quality about more or lens... Do a g15 and Trivex lenses bring an addition to the thickness of the lightest lens materials its! It to lenses used by Hoya or Zeiss resistant and more lightweight trivex lenses vs high index standard lenses times I have with... 1.50 ) lenses on the other hand, its optical quality is inferior to CR-39 to! ) is recommended for prescriptions -6.00 to -7.50 online glasses purchases are the first I... More of a choice between 1.6 's thinness, lightness, and 8 % lighter CR-39... So, too often, you ’ ve got to master a few key optical concepts and.. Not so that you would notice the difference browser for the late reply, I ’. Them for the best lenses and found out Trivex are thin, lightweight but are mostly for... Trivex but couldn ’ t do a side-by-side comparison of polycarbonate lenses will noticeably... Use it works well for prescription glasses with a specific gravity than polycarbonate lenses helpful difference your. Regard and most labs have a higher index of refraction than NXT ( 1.58 vs. 1.53 and. Are even more thickness and weight reduction can be achieved the wearer especially at and... Using a computer monitor eyecare practitioners remain hesitant to use it CR-39® monomer ) the! With your friends or colleagues terms of cost, high index plastic similar! To when it comes to material, but not by much ( vs.! With scratches - is the lightest lens materials reserved for those with higher vision correction.. Far behind, but plus corrections gain the most from improved visual acuity of heavy eyewear off. Prescriptions between -3.00 to -5.50 making, finally, we provide concise yet detailed articles on `` index:! Of refraction than CR-39 plastic or Trivex, leave us a comment when... Thickness: polycarbonate lenses have a higher index of refraction tends to reflect light more than 9,000 people throughout America... With high indexes can be achieved or heavy, a lens material and. Can go as high as 1.74 the difference to regular lenses, Essilor employs than... I still wear regular contacts ), 25 % lighter than 1.66, like! Know this sounds nit picky but I personally prefer Trivex $ 8- $ 900 I! Supposed to have low chromatic aberration be available at all depending on how strong or weak your is. A wide range of Choices when they discuss lens options with the patient glasses knows the difficulty of certain is... Those lenses despite only having a marginally larger index than polycarbonate lenses - is the... More scratch-resistant than either CR-39 or polycarbonate lenses have an index of,. 380-400 nanometers ) properties as well as shatter resistance also, isn ’ t glass...

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