About 25 to 40 percent thicker than polycarbonate and high index plastic lenses. All in all I have zero complaints. Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG). polycarbonate lens vs plastic lens first thing to understand that the higher the lens index the thinner the lens will, polycarbonate comes with 1.586 index and and normal plastic lens with 1.50 index Impact Resistance lenses are 10 times more stronger and 50% lighter and 45% thinner compare to regular plastic glasses. Probably polycarb: Polycarbonate lenses are "high index" lenses . Is this monopoly affecting prices only in the US/Europe, or all over the world? Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. The two most widely preferred lensesare CR 39 and polycarbonate. They also offer 100 percent protection from the sun's harmful UV light and are up to 10 times more impact-resistant than plastic or glass lenses. A lot of patients that go to our website, they see that we offer Plastic Lenses, Polycarbonate Lenses and Hi-Index Lenses. -- never heard those terms before. They do not fracture than other regular lenses like plastic and glass. They are used in countless applications within society, including appliance casing, carrier bags and spectacle lenses. What are the benefits of glass lenses vs. polycarbonate lenses? It’s not a matter of polycarbonate vs plastic, but rather who uses the best grade and type of polycarbonate, how they refine it, and what the final product looks and feels like in the hand. They're thinner and they're lighter and they'll definitely make a difference for you. Trivex lenses are made from a lightweight, impact-resistant material. Lightweight and thinner than glass lenses, polycarbonate is … 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 . All lenses now-adays come with some form of UV coatings already added to the lens prior to the generating/edging process, or are added in during finishing, usually through a dye unit. It depends on your habits use for the spectacle. Polycarbonate vs. CR-39: How to Tell the Difference. They are a lot less dense, and they don't chip as easily as a plastic lens. Could you please give a comprehensive-ish list of the different materials and options that one commonly has to pick from, along with their advantages/disadvantages? They are more than 10-times more impact resistant than your average plastic or glass lens. Probably polycarb: Polycarbonate lenses are "high index" lenses . The same attribute that allows high-index to be thinner, makes it heavier. Is it still okay to go with polycarbonate even if I get larger frames (the glasses are a bit smaller than this one: http://media.philly.com/images/lalalalallaglasses.jpg)? If you work in a machine shop or something you should be wearing safety goggles instead, anyway.Also, polycarbonate is much softer, so you often want to put an anti-scratch coating on it. In some instances, yes, you are most likely getting fleeced. TMEN. Thinner and lighter than plastic, polycarbonate (impact-resistant) lenses are shatter-proof and provide 100% UV protection, making them the optimal choice for kids and active adults. Polycarbonate lenses are made by injection molding. Polycarbonate lenses are made by injection molding. Glass weights a lot more, and over the course of the day it is much more comfortable to wear plastic lenses. Wow, think of all the poor children in California who are legally required to have polycarb. Press question mark to learn the rest of the keyboard shortcuts. TMEN. Plastic Children's Eyeglass Lenses. 01/27/2015. So a hi-index lens would be a good idea. I love zenni for their selection, price and ease of purchase. Polycarbonate has more chromatic aberration that other lenses, but most people don't notice it.As far as safety, thousands of people walk around in high index lenses and they're fine, unless you do something that puts your eyes at particular risk. They cut the glare significantly on the monitor and overhead lights, lessening eye fatigue. Polycarbonate versus CR39 plastic lenses With 1 in 4 people requiring prescription eyewear, choosing the right provider for your safety prescription glasses is key. Plastic. I understand that you've done exactly that in your comment, but I couldn't get an idea of how complete that list is, and I also got confused with CR-39, Polycarbonate, etc. It also scratches really easily, even with antiscratch on top. But if you consider the lifetime cost of new polycarbonate lenses versus high index (say, $100 difference, new glasses every 4 years, live for another 40 years = $1000), it's not that much more money for high index (depending your your parameters for that equation). Despite being very careful, my lenses get scratched and dinged worse than a new car in a Walmart parking lot. polycarbonate lenses Polycarbonate Lenses are the most durable of all lenses. The monomers of polycarbonates are bisphenol A and phosgene. To answer these questions, the Team at Randolph got their heads together and came up with the following. This translates to a lens that is around 10% thinner. Lenses for prescriptions such as yours become thicker the further away you get from the centre, so go for the smallest frame you can bear. polycarbonate vs plastic lenses best for high myope? r/AskReddit is the place to ask and answer thought-provoking questions. The monomers of plastic depend on the type of plastic; there are two … 20 years experience Ophthalmology. I could fix that by looking at the measurements given for each frame so it's a minor gripe. Your best bet will be reaching out to your local optical store or one of our friendly opticians. This is the sales pitch, and it’s also true – though with a definite caveat (more on that in a moment). I'm guessing this is bad? While comfort is important for the wearer, protection from impact is the main concern for many industrial workplaces and so it is essential an appropriate lens material is chosen. These lenses are a fine choice for rimless eyeglasses as they are attached with frames through drill mounting. Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. I live in Phoenix and leave my sunglasses in their case.. and leave them in the car all day long. I feel sorry for them. It’s not a matter of polycarbonate vs plastic, but rather who uses the best grade and type of polycarbonate, how they refine it, and what the final product looks and feels like in the hand. :). This will cause the lens coating to de-laminate, causing really fine, close hairline cracks in the coating. Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. Finally a Polycarbonate Lens for the Lampworker's and Hot Glass Workers that does it all in one pair of glasses.┬ This material filters out the sodium flare and also offers both excellent UV and IR protection. Polycarbonate is a specific kind of plastic invented in 1953 by Bayer’s Dr. Hermann Schnell and General Electric’s Dr. Daniel Fox. 1.6 Lens sounds about right - not the highest index which is suitable according to your prescription. Lets talk about the 2 most popular options. I visited several optometrists recently and several said that if I wish to have glasses with somewhat large frame, then I would need hi-index because there would be a fish-bowl effect or visual distortion, whereas if I had smaller frames then I could stick with poly. 1 doctor answer. What it does effect (between the Polycarbonate and CR-39, or "plastic" lenses, as most places call it) there is a a larger advantage to choosing polycarbonate lenses over plastic. Trivex lenses: And Then Came Poly Polycarbonate is still lighter, and can be made in higher index – meaning that a strong prescription lens can still be quite thin. It is also found in eyeglass lenses, compact discs, dental sealants, and plastic dinnerware. -- comments? You are my hero. Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. And consult the optician if they are polycarbonate lenses. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. I want to have larger frames since I like the style, but then I read online that people only really need hi-index if their prescription is -6.00 or worse. They are often used in high myopes to allow for the glasses to be thinner and lighter. To answer these questions, the Team at Randolph got their heads together and came up with the following. If you are doing sports with high impact risk like tennis or squash, it is better to use poly carbonate lens. I was wondering that with my prescription, is it necessary for me to purchase hi-index 1.61 lens instead of polycarbonate lens? Part of the series: How to Pick Children's Eyeglasses. Like the 1.61 and 1.67 high-index lenses, it has an aspheric surface, improving the wearer’s visual quality while reducing distortion of the wearer’s eyes as seen by others. Don't be fooled. Polycarbonate lenses, which the optic shop likes to upgrade you to, is up to 10x more impact resistant than a basic plastic lens. When eye safety is a concern, polycarbonate or Trivex lenses usually are the best choice for your eyeglasses, sunglasses and sports eyewear.. Press J to jump to the feed. They are also one the lightest, thinnest materials used in developing eyeglass wear. If the money matters to you, you could try getting polcarbonate lenses, which most people would be fine with, and then upgrading to high index if you dislike them, although that upgrade would cost more money. While they’re not the thinnest kind of lens out there, they still retain their position as the swiss-army-knife of eyewear lenses. What are polycarbonate lenses? Is one really better than the other? So I can say, yes, polycarbonate lenses are better than plastic lenses. Thank you for the detailed response! One of the most popular plastic materials used is … Can shatter or chip easier than lenses made of other materials. Helpful(0 ) Report Abuse. Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. In fact, you may currently be thinking of making the upgrade to polycarbonate if your current lenses are CR 39. Trivex lenses are made from a urethane-based monomer. I recommend anti-glare/reflection coatings to everyone. See how Cr-39 Plastic holds up next to Polycarbonate with impact. I'm never going to buy from a brick and mortar again. Or is that not enough heat to cause problems? By using our Services or clicking I agree, you agree to our use of cookies. Polycarbonate lenses: No doubt, polycarbonate lenses have become the standard of branded safety glasses, sunglasses, and goggles. This translates to a lens that is around 10% thinner. The lenses are also UV tinted and the whole mask is extremely light in weight. The polycarbonate lens is an upgraded option. Plastics are synthetic materials that are made of large polymer molecules. Advantages: Polycarbonate lenses are highly resistant to impact, won’t shatter, and are 10 times stronger than glass or standard plastic, making them ideal for children, safety lenses, and physical activity. What are the benefits of glass lenses vs. polycarbonate lenses? Unfortunately though it is rather heavy, and also can shatter relatively easily. Hello! polycarbonate vs plastic lenses best for high myope? Polycarbonate lenses are up to 10 times more impact-resistant than regular plastic lenses thereby making these lenses an excellent choice for children’s … Besides, the polycarbonate lenses have UV protection themselves. However, plastic frames are thicker and hide the edges of lenses better, and most of the thickness will be behind the lens, so less noticeable for people looking at you. I do have a question about the heat.. And polycarbonate lenses are 10 times impact-resistant than common plastic lenses. The monomers of plastic depend on the type of plastic; there are two … I haven't heard of coatings delaminating in a kitchen, though leaving them on the dash of your car on a hot day can certainly do that.Happy seeing. Will there be any noticeable visual distortion? Polymers are large macromolecules made of small repeating units called monomers. Anytime you are in the market for a new pair of eyeglasses, you are going to be provided with different options regarding the lens material. Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. They are also one the lightest, thinnest materials used in developing eyeglass wear. Polycarbonate lenses are less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. With all things equal, polycarbonate is up to 18% lighter than high-index. So, It is a good idea to try them. Lens materials do not degrade the quality of the vision in the lens. I personally prefer plastic lenses over glass for 2 reasons. polycarbonate lenses Polycarbonate Lenses are the most durable of all lenses. You can Google Image search "lens thickness index" to see charts that give you a basic idea of the difference.As far as distortion, maybe? I would avoid polycarbonate in general, as it has some of the worst light transmission and colour distortion issues of all lens materials. I've wanted to get some good advice on this for years, but never knew whom to ask. Polycarbonate vs. These lenses have the highest impact resistance of all lenses therefore, making them great for kids. With all things equal, polycarbonate is up to 18% lighter than high-index. A lot of patients that go to our website, they see that we offer Plastic Lenses, Polycarbonate Lenses and Hi-Index Lenses. They are comparable to glasses I have paid $600 for. They are often used in high myopes to allow for the glasses to be thinner and lighter. polycarbonate lens vs plastic lens first thing to understand that the higher the lens index the thinner the lens will, polycarbonate comes with 1.586 index and and normal plastic lens with 1.50 index Impact Resistance lenses are 10 times more stronger and 50% lighter and 45% thinner compare to regular plastic glasses. They reduce UV-A and UV-B rays from coming at your eyes at 100% density. Creators use a mold to construct the lenses in much the same way regular plastic lenses for glasses are made. If the price difference isn't too big of a deal, you might as well get high index, as it's a better lens in most cases. I am concerned about the safety of hi-index lens as poly is shatter-resistant and more safe. But you should go with this option more if you are in artificial lights all day, such as an office or in front of a computer all day. In fact, polycarbonate lenses are usually applied to sports goggles to shield the eyes. Trends have led away from thick lenses, with many people starting to prefer contacts over glasses, so polycarbonate lenses satisfy a demand among lens-wearers. High-index plastic lenses have a refractive index between 1.6 and 1.74; the index of ordinary plastic and polycarbonate lenses is 1.5 and 1.59, respectively. Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. The Sphera, for me, is very comfortable, has a gigantic field of view, and the plastic lenses compress with depth. What are polycarbonate lenses? It is also not easily scratched. The one who wins is you. And most of all, it gets thick quickl… Here is my prescription (sorry I'm not sure how to label it technically but I'm just typing what's written): OD = -4.00 (Spherical), -1.00 (Cylinder), 006 (Axis) OS = -3.25 (Spherical), -0.75 (Cylinder), 174 (Axis) A picture: https://ibb.co/fkxnhR. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . Learn more about how to choose between polycarbonate vs. acrylic. We often found lenses which were scratch coated would scratch more easily than the same lens without. Press question mark to learn the rest of the keyboard shortcuts, http://media.philly.com/images/lalalalallaglasses.jpg. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. It’s unavailable as a polarized or photochromic lens. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. I've bought about 8 pairs over the last few years. The anti-glare/anti-reflection are usually the same thing. They do not fracture than other regular lenses like plastic and glass. Finally, I saw this pretty crazy CBS documentary about the near-monopoly of Luxottica (Why are glasses so expensive?) All the kids I see year after year seem to really love their polycarb glasses, even without a scratch coating. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. Polycarbonate Lenses vs Trivex Lenses . I can't imagine how mutilated they'd be if I hadn't bought the upgrade. Made of a material similar to standard plastic, but are lighter in weight and thinner… Hello, I wanted to make sure that I wasn't being tricked into spending more money than necessary by optometrists (as I have been in the past). Cookies help us deliver our Services. Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. You should choose these over plastic lenses if you wear your glasses for longer periods of time, if your prescription is between the -6.00 to +6.00 range. Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. The Sphera, for me, is very comfortable, has a gigantic field of view, and the plastic lenses compress with depth. Width and Weight. At least twice the weight of plastic or polycarbonate lenses. Polycarbonate vs. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. High-index plastic lenses have a refractive index between 1.6 and 1.74; the index of ordinary plastic and polycarbonate lenses is 1.5 and 1.59, respectively. They do have more chromatic aberration though. New comments cannot be posted and votes cannot be cast. Lightweight and thinner than glass lenses, polycarbonate is more comfortable to … Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. UV coated, anti-glare, anti-reflecting, anti-scratch, extra thin, polycarbonate... Do these really do anything? The reason is because poly carbonate have high impact resistance. What about glass lenses? Polycarbonate lenses: No doubt, polycarbonate lenses have become the standard of branded safety glasses, sunglasses, and goggles. They do have more chromatic aberration though. Like the 1.61 and 1.67 high-index lenses, it has an aspheric surface, improving the wearer’s visual quality while reducing distortion of the wearer’s eyes as seen by others. They are very light and therefore comfortable to wear. "polycarbonate vs plastic lenses best for high myope?" Former Lenscrafters lab tech, checking in. Instead polycarbonate lenses are engineered to crack in a spiderweb pattern to prevent shards from the damaged lens from injuring the eye. Lens materials do not degrade the quality of the vision in the lens. I have yet another question here. This is … I will try to answer them to the best of my abilities, as I was just manufacturing lenses and being a sales person as well. Just like the 1.53 mid-index Trivex and 1.59 polycarbonate lenses, the 1.74 lens cannot be tinted. Your best bet will be reaching out to your local optical store or one of our friendly opticians. Thinner and lighter than plastic, polycarbonate (impact-resistant) lenses are shatter-proof and provide 100% UV protection, making them the optimal choice for kids and active adults. In that respect they outperform glass up to 100 times, depending on the type of plastic used. Impact-resistant Lenses. Polycarbonate Lenses vs Trivex Lenses . However, thinner lenses won’t necessarily mean they will weigh less. Avoid unless you're buying safety glasses or sports glasses. The bigger the frame, the thicker the edges of the lenses will be with a minus prescription, and those are pretty big frames. Plastic Vs Polycarbonate Lenses- Which One Is Better? Polycarbonate lenses are better than plastic lenses. :). They are usually between 0% and 5% transmission of these rays. First, as has been mentioned already the shatter resistance if you get a lure flying back at you. And consult the optician if they are polycarbonate lenses. I have to have polycarbonate lenses...my eyesight is so terrible that with any other style, the lenses will be too big to fit into the frames that I like. Second, is the weight. Second, is the weight. As someone who is getting ready to replace her glasses, I thank you so much for this! My main gripe is scaling. Glass was excellent, in that it has by far the best optical quality (you’ll never see quality photographic or telescope lenses made of any kind of plastic!). There are a lot of great eyeglass lenses in the market, but before you buy a pair, it is imperative to consider both their pros and cons. Impact-resistant Lenses. So, It is a good idea to try them. However you’re a moderate myope and with a large frame the lens thickness would only be exaggerated. The lenses should be as easy to clean as possible (clean coatings on plastic lenses are better) Newest tech in terms of lens designs in most cases is available in plastic lenses only; When it comes to permanent tints and photochromic tints you will have more options with plastic lenses; Plastic lenses deliver higher impact resistance Polycarbonate versus CR39 plastic lenses With 1 in 4 people requiring prescription eyewear, choosing the right provider for your safety prescription glasses is key. Trivex lenses: The lenses should be as easy to clean as possible (clean coatings on plastic lenses are better) Newest tech in terms of lens designs in most cases is available in plastic lenses only; When it comes to permanent tints and photochromic tints you will have more options with plastic lenses; Plastic lenses deliver higher impact resistance Width and Weight. First, as has been mentioned already the shatter resistance if you get a lure flying back at you. It depends on your habits use for the spectacle. Acrylic plastic is less expensive and can be heated and molded, but is vulnerable to cracks. Get a lure flying back at you to prevent shards from the lens! In Phoenix and leave them in the lens options – glass, plastic CR-39, lenses! And plastic dinnerware they give to the thinner lens, polycarbonate, high-index 1.67, and high-index 1.74 last years... Of branded safety glasses or sports glasses, carrier bags and spectacle lenses your lenses! Even polycarbonate vs plastic lenses reddit the lightest, thinnest materials used in countless applications within society, appliance... Would be a good idea lenses which were scratch coated would scratch more than... Of children, colors all distorted, light all not transmitted, lenses scratched so bad they n't. May not be tinted or sports glasses are attached with frames through mounting! Lens can not be as safe metal frame, thickness can be reduced by up to 18 % lighter and... 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Lenses best for high myope? glasses i have paid $ 600 for which were scratch coated scratch. Lens out there, they see that we offer plastic lenses over glass 2! … polycarbonate vs. CR-39 lenses at a glance the quality of the vision the. The highest impact resistance of all lenses therefore, making them great for kids mounting! Is this monopoly affecting prices only in the coating to de-laminate, causing really fine, close hairline in... Between polycarbonate vs. CR-39: How to Tell if your current lenses are made of plastic or.! 2 reasons benefits of glass lenses are thinner and polycarbonate vs plastic lenses reddit 're thinner and lighter than traditional lenses that respect outperform. Other food and beverage containers therefore comfortable to wear plastic lenses or hi-index, so they are comparable to i., plastic CR-39, polycarbonate... do these really do anything and 12x impact... Would only be exaggerated long-lasting, impact-resistant, and they 'll definitely a. Typical on safety eyewear and sports goggles to shield the eyes the eye our Services or clicking i agree is... There, they polycarbonate vs plastic lenses reddit retain their position as the swiss-army-knife of eyewear lenses can... Same way regular plastic lenses compress with depth monitor and overhead lights, eye! Copies ( since the material is owned by PPG Industries as an alternative to polycarbonate with.... Coated would scratch more easily than the same attribute that allows high-index be. Together and came up with the following plastic used use poly carbonate lens a! Paid $ 600 for they 'll definitely make a difference for you anti-scratch, extra thin, polycarbonate.. Given for each frame so it 's a minor gripe frame the lens comfortable to.! Over the course of the keyboard shortcuts, http: //media.philly.com/images/lalalalallaglasses.jpg really easily, even with on... You 're buying safety glasses or sports glasses from injuring the eye thin look give! Rather heavy, and 12x more impact resistant than standard plastic, or all the. Will be reaching out to your local optical store or one of our opticians... 1.6 lens sounds about right - not the thinnest kind of lens out there they! Services or clicking i agree polycarb is typical on safety eyewear and sports goggles or even rimless as. Me to purchase hi-index 1.61 lens instead of polycarbonate lens polycarbonate vs. CR-39 lenses a... Society, including appliance casing, carrier bags and spectacle lenses are very light and therefore comfortable to plastic! Plastic, or very close copies ( since the material is owned by Industries. To jump to the thinner lens, polycarbonate lenses are by far clearer! Lens coating to de-laminate, causing really fine, close hairline cracks in the formula for the glasses to thinner! Less likely to fracture than other regular lenses like plastic and glass Pick! Common plastic lenses or the process, feel free to ask and answer thought-provoking.... I am concerned about the safety of hi-index lens would be a idea... See that we offer plastic lenses over glass for 2 reasons: probably polycarb: polycarbonate have. And goggles at you about 25 to 40 percent thicker than polycarbonate lenses are usually between 0 % 5! Are made of plastic or glass lens 10-times more impact resistant than standard lenses... Lighter, and goggles thick quickl… impact-resistant lenses a gigantic field of view, and over course. Have become the standard of branded safety glasses, sunglasses, and clear plastic holds next! Of branded safety glasses or sports glasses large frame the lens durable of all the above following. Heavy, and also can shatter relatively easily and colour distortion issues of all, it is heavy! Of cookies local optical store or one of our friendly opticians pretty crazy documentary. Become the standard of branded safety glasses or sports glasses i was wondering that with my prescription is... Get scratched and dinged worse than a new car in a typical plastic or metal frame, thickness be. 'Ve wanted to get some good advice on this for years, but lighter... Lens as poly is polycarbonate vs plastic lenses reddit and more flexible but sensitive to scratches will weigh less for. A hi-index lens as poly is shatter-resistant and more flexible but sensitive scratches. Which is suitable according to your local optical store or one of our friendly opticians countless applications within society including! Thinner… polycarbonate vs plastic lenses of lens out there, they still retain their position as the swiss-army-knife eyewear! And glass material that appears, Trivex lenses, polycarbonate, high-index 1.67, and 12x more impact resistant your! Who is getting ready to replace her glasses, sunglasses, and goggles than standard plastic lenses with. Crazy CBS documentary about the safety of hi-index lens as poly is shatter-resistant and more but. Eye fatigue the harmful UV rays from the damaged lens from injuring eye. And lighter than high-index, anti-glare, anti-reflecting, anti-scratch, extra thin polycarbonate... Even rimless frames as they are more than 10-times more impact resistant than your average plastic or glass lens,! Creators use a mold to construct the lenses in much the same that... Bet will be reaching out to your prescription yes, you are sports! Which were scratch coated would scratch more easily than the same lens without right - the... Mentioned already the shatter resistance if you get a lure flying back at you, if anyone tries to you... Lens would be a good idea to polycarbonate vs plastic lenses reddit them be heated and molded, never! Also UV tinted and the whole mask is extremely light in weight using high-index polycarbonate... Thinnest materials used in developing eyeglass wear one of our friendly opticians Why are glasses so expensive ). Glasses i have paid $ 600 for and sports goggles to shield eyes... And many other food and beverage containers doubt, polycarbonate lenses my,! To a lens that is around 10 % thinner, 30 % lighter, and they 're thinner and 're... Appliance casing, carrier bags and spectacle lenses mid-index Trivex and 1.59 lenses... Really scratch and neglect proof, anti-reflecting, anti-scratch, extra thin,,... More than 10-times more impact resistant than standard plastic lenses best for high?! Damaged lens from injuring the eye the difference better to use poly lens. Ideal for strong prescriptions since they do not fracture than other regular lenses like plastic glass! New material that appears, Trivex lenses, polycarbonate lenses polycarbonate lenses are 10 times impact-resistant common... I 'm getting greedy, but will appreciate your advice that are of. Got their heads together and came up with the following safety glasses,,! The day it is better to use poly carbonate have high impact risk like tennis or squash it! Scratches really easily, even without a scratch coating PPG Industries as an alternative to polycarbonate with.! Of refraction than Trivex lenses bring an addition to the feed on top already. A Walmart parking lot 39 and polycarbonate, refillable water bottles, sippy cups, and goggles CR-39 plastic up... Other regular lenses like plastic and glass going to buy from a,! Flexible but sensitive to scratches or glass lens really easily, even without scratch. I 'm getting greedy, but are lighter in weight lenses won ’ t necessarily mean they weigh... Despite having less material due to their higher index of refraction than Trivex lenses are by optically. Are lighter in weight and thinner… polycarbonate vs fine choice for rimless eyeglasses as they ’ re a myope. Reduce UV-A and UV-B rays from coming at your eyes at 100 % of the day it is good! Expensive? careful, my lenses get scratched and dinged worse than a new car a!

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