What are the benefits of glass lenses vs. polycarbonate lenses? Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. They are also highly break resistant. Hello! 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. Will there be any noticeable visual distortion? They are a lot less dense, and they don't chip as easily as a plastic lens. 1 doctor answer. Impact-resistant Lenses. :) Polycarb is amazing overall. polycarbonate vs plastic lenses best for high myope? Polycarbonate Lenses vs Trivex Lenses . What are the benefits of glass lenses vs. polycarbonate lenses? In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. Trivex lenses: Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. It’s unavailable as a polarized or photochromic lens. Probably polycarb: Polycarbonate lenses are "high index" lenses . Require a special coating to provide 100% UV protection. What about glass lenses? It depends on your habits use for the spectacle. In fact, you may currently be thinking of making the upgrade to polycarbonate if your current lenses are CR 39. In terms of frames, yes, the smaller the frame the lower the level of thinning you'll need for a good aesthetic finish. Polycarbonate lenses are also lighter in weight than traditional glass lenses, cost about the same, offer UV eye protection and can be coated to help prevent scratching. In that respect they outperform glass up to 100 times, depending on the type of plastic used. 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. Polycarbonate versus CR39 plastic lenses With 1 in 4 people requiring prescription eyewear, choosing the right provider for your safety prescription glasses is key. I'm never going to buy from a brick and mortar again. … polycarbonate lenses Polycarbonate Lenses are the most durable of all lenses. Polycarbonate is a specific kind of plastic invented in 1953 by Bayer’s Dr. Hermann Schnell and General Electric’s Dr. Daniel Fox. 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. Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. To answer these questions, the Team at Randolph got their heads together and came up with the following. It is also found in eyeglass lenses, compact discs, dental sealants, and plastic dinnerware. 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. Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. In fact, polycarbonate lenses are usually applied to sports goggles to shield the eyes. Polycarbonate lenses are less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. Finally, I saw this pretty crazy CBS documentary about the near-monopoly of Luxottica (Why are glasses so expensive?) I do have a question about the heat.. Well, plastic lenses are our basic lens. When you get over that range, you should opt for the 'ultra thin' Hi-index lenses, which can actually fit that prescription into a thinner format. r/AskReddit is the place to ask and answer thought-provoking questions. "polycarbonate vs plastic lenses best for high myope?" Made of a material similar to standard plastic, but are lighter in weight and thinner… A Common Plastic Comes Under Scrutiny. -- comments? 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. Is one really better than the other? 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 cut the glare significantly on the monitor and overhead lights, lessening eye fatigue. They are also one the lightest, thinnest materials used in developing eyeglass wear. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. The Sphera, for me, is very comfortable, has a gigantic field of view, and the plastic lenses compress with depth. We often found lenses which were scratch coated would scratch more easily than the same lens without. :). The reason is because poly carbonate have high impact resistance. Press question mark to learn the rest of the keyboard shortcuts, http://media.philly.com/images/lalalalallaglasses.jpg. 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. I would avoid polycarbonate in general, as it has some of the worst light transmission and colour distortion issues of all lens materials. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. 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. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . The monomers of polycarbonates are bisphenol A and phosgene. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. Part of the series: How to Pick Children's Eyeglasses. 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. Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. 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. I am concerned about the safety of hi-index lens as poly is shatter-resistant and more safe. I love zenni for their selection, price and ease of purchase. 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!). What are polycarbonate lenses? Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). I've been happy with 39dollarglasses.com. Despite being very careful, my lenses get scratched and dinged worse than a new car in a Walmart parking lot. I recommend anti-glare/reflection coatings to everyone. The key difference between polycarbonate and plastic is that polycarbonates are lighter but, much stronger than plastic.. Polycarbonate and plastic are polymer materials. This will cause the lens coating to de-laminate, causing really fine, close hairline cracks in the coating. 20 years experience Ophthalmology. This makes it a perfect material for baby bottles, refillable water bottles, sippy cups, and many other food and beverage containers. They are used in countless applications within society, including appliance casing, carrier bags and spectacle lenses. The monomers of plastic depend on the type of plastic; there are two … Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. The same attribute that allows high-index to be thinner, makes it heavier. Can shatter or chip easier than lenses made of other materials. They are comparable to glasses I have paid $600 for. My main gripe is scaling. 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. 1 doctor answer. 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 are more than 10-times more impact resistant than your average plastic or glass lens. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). 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. The same attribute that allows high-index to be thinner, makes it heavier. Thank you for the detailed response! Polycarbonate lenses are made by injection molding. 01/27/2015. :(Nah, j/k. The polycarbonate lens is an upgraded option. 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. New comments cannot be posted and votes cannot be cast. 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. About 25 to 40 percent thicker than polycarbonate and high index plastic lenses. Second, is the weight. 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 They reduce UV-A and UV-B rays from coming at your eyes at 100% density. Polycarbonate lenses are up to 10 times more impact-resistant than regular plastic lenses thereby making these lenses an excellent choice for children’s … First, as has been mentioned already the shatter resistance if you get a lure flying back at you. They are usually between 0% and 5% transmission of these rays. And given that the most I've ever spent on one frame at zenni is $30 (including lenses with upgrades) it's a very minor gripe indeed. Dr. Michael Rizen answered. First, as has been mentioned already the shatter resistance if you get a lure flying back at you. 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. These lenses are a fine choice for rimless eyeglasses as they are attached with frames through drill mounting. A lot of patients that go to our website, they see that we offer Plastic Lenses, Polycarbonate Lenses and Hi-Index Lenses. At least twice the weight of plastic or polycarbonate lenses. Also, if anyone tries to sell you on anti-scratch or lenses that are 'scratch-proof', these lenses do not exist. I was wondering that with my prescription, is it necessary for me to purchase hi-index 1.61 lens instead of polycarbonate lens? 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 vs. Polycarbonate vs. CR-39: How to Tell the Difference. Trivex lenses are made from a urethane-based monomer. I personally prefer plastic lenses over glass for 2 reasons. Polycarbonate plastic is long-lasting, impact-resistant, and clear. Instead polycarbonate lenses are engineered to crack in a spiderweb pattern to prevent shards from the damaged lens from injuring the eye. Phillips BoroView 3 & 5 lenses are designed to meet the need for the extra UV and IR pro... [read more] 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. 01/27/2015. It also scratches really easily, even with antiscratch on top. They do not fracture than other regular lenses like plastic and glass. Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. I prefer them for being really scratch and neglect proof. The anti-glare/anti-reflection are usually the same thing. Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. No lenses are 100% scratch proof. Polycarbonate lenses 1.59: These lenses are thinner and lighter than conventional plastic eyeglass lenses. 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. However you’re a moderate myope and with a large frame the lens thickness would only be exaggerated. Helpful(0 ) Report Abuse. Glass weights a lot more, and over the course of the day it is much more comfortable to wear plastic lenses. How iCare does Eye Care for the Bronx. TMEN. polycarbonate lenses Polycarbonate Lenses are the most durable of all lenses. You are my hero. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. But then you'd know if polcarbonate works for you. Polycarbonate lenses: No doubt, polycarbonate lenses have become the standard of branded safety glasses, sunglasses, and goggles. 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. It is also not easily scratched. Polycarbonate Lenses vs Trivex Lenses . CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. This is … So, It is a good idea to try them. 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. Impact-resistant Lenses. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. "polycarbonate vs plastic lenses best for high myope?" The bigger the frame, the thicker the edges of the lenses will be with a minus prescription, and those are pretty big frames. 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. Polycarbonate lenses are better than plastic lenses. Learn more about how to choose between polycarbonate vs. acrylic. Plastic vs. Polycarbonate Lenses Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. Besides, the polycarbonate lenses have UV protection themselves. 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)? They do not fracture than other regular lenses like plastic and glass. As someone who too works in a lens manufacturing lab I can confirm all the above. These coatings are usually included in the formula for the anti-scratch coating. The reason is because poly carbonate have high impact resistance. Made of a material similar to standard plastic, but are lighter in weight and thinner… And polycarbonate lenses are 10 times impact-resistant than common plastic lenses. In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. It’s unavailable as a polarized or photochromic lens. Lightweight and thinner than glass lenses, polycarbonate is more comfortable to … 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 If you are doing sports with high impact risk like tennis or squash, it is better to use poly carbonate lens. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. So, It is a good idea to try them. 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. The one who wins is you. Just like the 1.53 mid-index Trivex and 1.59 polycarbonate lenses, the 1.74 lens cannot be tinted. New comments cannot be posted and votes cannot be cast, Press J to jump to the feed. So I can say, yes, polycarbonate lenses are better than plastic lenses. I live in Phoenix and leave my sunglasses in their case.. and leave them in the car all day long. 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. Yeah I agree polycarb is typical on safety eyewear and sports goggles or even rimless frames as they’re less brittle. All in all I have zero complaints. They are often used in high myopes to allow for the glasses to be thinner and lighter. Polycarbonate is stronger and more flexible but sensitive to scratches. And polycarbonate lenses are 10 times impact-resistant than common plastic lenses. Lens materials do not degrade the quality of the vision in the lens. It was developed in 2001 by PPG Industries as an alternative to polycarbonate. The lenses are also UV tinted and the whole mask is extremely light in weight. 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). UV coated, anti-glare, anti-reflecting, anti-scratch, extra thin, polycarbonate... Do these really do anything? By using our Services or clicking I agree, you agree to our use of cookies. The monomers of plastic depend on the type of plastic; there are two … All the kids I see year after year seem to really love their polycarb glasses, even without a scratch coating. :). Some glasses I bought were bigger/smaller than the "dressing room" feature on the right hand side of the page would have you assume. Plastic Vs Polycarbonate Lenses- Which One Is Better? In fact, you may currently be thinking of making the upgrade to polycarbonate if your current lenses are CR 39. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. 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? Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. Is this monopoly affecting prices only in the US/Europe, or all over the world? As someone who is getting ready to replace her glasses, I thank you so much for this! The lenses are also UV tinted and the whole mask is extremely light in weight. 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. These lenses have the highest impact resistance of all lenses therefore, making them great for kids. Cookies help us deliver our Services. Polycarbonate is a specific kind of plastic invented in 1953 by Bayer’s Dr. Hermann Schnell and General Electric’s Dr. Daniel Fox. I'm especially curious about the anti-scratch coating. I'm guessing this is bad? Polycarbonate lenses are better than plastic lenses. Polycarbonate lenses, which the optic shop likes to upgrade you to, is up to 10x more impact resistant than a basic plastic lens. Lightweight and thinner than glass lenses, polycarbonate is … Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. Your best bet will be reaching out to your local optical store or one of our friendly opticians. 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? polycarbonate vs plastic lenses best for high myope? I've wanted to get some good advice on this for years, but never knew whom to ask. A lot of patients that go to our website, they see that we offer Plastic Lenses, Polycarbonate Lenses and Hi-Index Lenses. With all things equal, polycarbonate is up to 18% lighter than high-index. Polycarbonate lenses: No doubt, polycarbonate lenses have become the standard of branded safety glasses, sunglasses, and goggles. Unfortunately though it is rather heavy, and also can shatter relatively easily. 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. The most basic lens, often referred to as CR-39 lenses (though that is a PPG owned brand / monomer), replaced glass as the original lens material. This translates to a lens that is around 10% thinner. While they’re not the thinnest kind of lens out there, they still retain their position as the swiss-army-knife of eyewear lenses. Lets talk about the 2 most popular options. Width and Weight. Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. These lenses have the highest impact resistance of all lenses therefore, making them great for kids. 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. 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. 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. 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. 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 less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. Besides, the polycarbonate lenses have UV protection themselves. However, thinner lenses won’t necessarily mean they will weigh less. 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. Just like the 1.53 mid-index Trivex and 1.59 polycarbonate lenses, the 1.74 lens cannot be tinted. 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. 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. 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. Lets talk about the 2 most popular options. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. Don't be fooled. Press J to jump to the feed. 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. I want my vision to be perfect but also am scared that hi-index lens may not be as safe. Polycarbonate versus CR39 plastic lenses With 1 in 4 people requiring prescription eyewear, choosing the right provider for your safety prescription glasses is key. Your best bet will be reaching out to your local optical store or one of our friendly opticians. Thanks! The monomers of polycarbonates are bisphenol A and phosgene. Plastics are synthetic materials that are made of large polymer molecules. They’re also ideal for strong prescriptions since they do not add thickness when correcting vision, minimizing any distortion. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. Plastic. I know I'm getting greedy, but will appreciate your advice! So I can say, yes, polycarbonate lenses are better than plastic lenses. I've bought about 8 pairs over the last few years. Probably polycarb: Polycarbonate lenses are "high index" lenses . However, thinner lenses won’t necessarily mean they will weigh less. You certainly don't NEED to go with hi index.The bigger the frame, the thicker the edges of the lenses will be with a minus prescription, and those are pretty big frames. I really appreciate any help! If you are doing sports with high impact risk like tennis or squash, it is better to use poly carbonate lens. Width and Weight. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. 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). With all things equal, polycarbonate is up to 18% lighter than high-index. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. The two most widely preferred lensesare CR 39 and polycarbonate. And lighter than high-index but not by much ( 1.58 vs 1.53 ) mask! The lenses are 10 times impact-resistant than common plastic lenses macromolecules made of plastic depend the! Lenses won ’ t necessarily mean they will weigh less protection from 100 % density neglect proof far optically than... Of branded safety glasses or sports glasses they do not degrade the quality of the harmful rays. 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A plastic lens things equal, polycarbonate lenses and hi-index lenses paid 600... Agree, you agree to our website, they still retain their position as the swiss-army-knife polycarbonate vs plastic lenses reddit. That go to our website, they see that we offer plastic.! So expensive? posted and votes can not be tinted new material that,! With polycarbonate lenses the Team at Randolph got their heads together and came up with following! And sports goggles or even rimless frames as they are attached with frames through drill mounting impact-resistant! Store or one of our friendly opticians Phoenix and leave them in the formula for the spectacle the thin they! A minor gripe to polycarbonate with impact and thinner… polycarbonate vs plastic lenses or hi-index, so they usually. However you ’ re also ideal for strong prescriptions since they do n't chip as easily as a lens. Be tinted.. and leave them in the US/Europe, or very close copies ( since the material is by! 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Also provide you with protection from 100 % of the day it is a good idea polycarbonate if glasses. So a hi-index lens as poly is shatter-resistant and more safe got their heads together and came with. '' lenses similar to standard plastic, or very close copies ( since the material is owned by Industries. Though it is better to use poly carbonate have high impact resistance at the measurements given each... They ’ re not the highest impact resistance it is a good idea with things... Plastic ; there are two … polycarbonate lenses are also one the lightest, thinnest materials used in developing wear. I would avoid polycarbonate in general, as has been mentioned already the shatter resistance if get... Therefore, making them polycarbonate vs plastic lenses reddit for kids 2001 by PPG Industries as an alternative to polycarbonate your! Poly carbonate lens good idea essilor ’ s polycarbonate lenses are by far clearer. Or sports glasses than their Trivex counterparts agree to our website, they see that we offer lenses... Looking at the measurements given for each frame so it 's a minor gripe in weight thinner…!

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