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. 20 years experience Ophthalmology. The key difference between polycarbonate and plastic is that polycarbonates are lighter but, much stronger than plastic.. Polycarbonate and plastic are polymer materials. I feel sorry for them. Lightweight and thinner than glass lenses, polycarbonate is more comfortable to … Dr. Michael Rizen answered. Polycarbonate vs. :) Polycarb is amazing overall. Unfortunately though it is rather heavy, and also can shatter relatively easily. You are my hero. All the kids I see year after year seem to really love their polycarb glasses, even without a scratch coating. And consult the optician if they are polycarbonate lenses. 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. They are usually between 0% and 5% transmission of these rays. The Sphera, for me, is very comfortable, has a gigantic field of view, and the plastic lenses compress with depth. 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. Is one really better than the other? 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. Thousands of children, colors all distorted, light all not transmitted, lenses scratched so bad they can't even see. This is … -- never heard those terms before. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. They’re also ideal for strong prescriptions since they do not add thickness when correcting vision, minimizing any distortion. Is this monopoly affecting prices only in the US/Europe, or all over the world? Trivex lenses are made from a lightweight, impact-resistant material. The anti-glare/anti-reflection are usually the same thing. The monomers of polycarbonates are bisphenol A and phosgene. 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). It also scratches really easily, even with antiscratch on top. As someone who is getting ready to replace her glasses, I thank you so much for this! I really appreciate any help! This translates to a lens that is around 10% thinner. Helpful(0 ) Report Abuse. It depends on your habits use for the spectacle. Press question mark to learn the rest of the keyboard shortcuts, http://media.philly.com/images/lalalalallaglasses.jpg. In that respect they outperform glass up to 100 times, depending on the type of plastic used. 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. They reduce UV-A and UV-B rays from coming at your eyes at 100% density. Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. 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. I'm never going to buy from a brick and mortar again. What are the benefits of glass lenses vs. polycarbonate lenses? Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. I want my vision to be perfect but also am scared that hi-index lens may not be as safe. 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. It’s unavailable as a polarized or photochromic lens. 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. 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. 20 years experience Ophthalmology. In fact, polycarbonate lenses are usually applied to sports goggles to shield the eyes. Polycarbonate lenses: No doubt, polycarbonate lenses have become the standard of branded safety glasses, sunglasses, and goggles. 01/27/2015. polycarbonate lenses Polycarbonate Lenses are the most durable of all lenses. However, thinner lenses won’t necessarily mean they will weigh less. They do have more chromatic aberration though. Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. They do not fracture than other regular lenses like plastic and glass. 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). Polycarbonate vs. CR-39: How to Tell the Difference. By using our Services or clicking I agree, you agree to our use of cookies. -- comments? Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . 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. Can shatter or chip easier than lenses made of other materials. In fact, you may currently be thinking of making the upgrade to polycarbonate if your current lenses are CR 39. I've wanted to get some good advice on this for years, but never knew whom to ask. And most of all, it gets thick quickl… I prefer them for being really scratch and neglect proof. Polycarbonate lenses are better than plastic lenses. Press question mark to learn the rest of the keyboard shortcuts. Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. In terms of frames, yes, the smaller the frame the lower the level of thinning you'll need for a good aesthetic finish. :(Nah, j/k. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. 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. :). The two most widely preferred lensesare CR 39 and polycarbonate. I personally prefer plastic lenses over glass for 2 reasons. 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. 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 . These coatings are usually included in the formula for the anti-scratch coating. They are often used in high myopes to allow for the glasses to be thinner and lighter. Polycarbonate versus CR39 plastic lenses With 1 in 4 people requiring prescription eyewear, choosing the right provider for your safety prescription glasses is key. Polycarbonate lenses are made by injection molding. 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. Don't be fooled. I know I'm getting greedy, but will appreciate your advice! The monomers of plastic depend on the type of plastic; there are two … Lets talk about the 2 most popular options. These lenses are a fine choice for rimless eyeglasses as they are attached with frames through drill mounting. Polycarbonate is stronger and more flexible but sensitive to scratches. The same attribute that allows high-index to be thinner, makes it heavier. Lightweight and thinner than glass lenses, polycarbonate is … Glass weights a lot more, and over the course of the day it is much more comfortable to wear plastic lenses. They do have more chromatic aberration though. Avoid unless you're buying safety glasses or sports glasses. Polycarbonate lenses are less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. 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. And polycarbonate lenses are 10 times impact-resistant than common plastic lenses. Hello! They are very light and therefore comfortable to wear. Trivex lenses: 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. They are used in countless applications within society, including appliance casing, carrier bags and spectacle lenses. Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG). Thank you for the detailed response! Thanks! It depends on your habits use for the spectacle. The monomers of plastic depend on the type of plastic; there are two … Due to their higher index, polycarbonate lenses are thinner and lighter than traditional 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? Dr. Michael Rizen answered. Polycarbonate is a specific kind of plastic invented in 1953 by Bayer’s Dr. Hermann Schnell and General Electric’s Dr. Daniel Fox. 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. Plastics are synthetic materials that are made of large polymer molecules. Cookies help us deliver our Services. Anyone have a take on the overseas sources (e.g., Zenni Optical)? Acrylic plastic is less expensive and can be heated and molded, but is vulnerable to cracks. Glass weights a lot more, and over the course of the day it is much more comfortable to wear plastic lenses. "polycarbonate vs plastic lenses best for high myope?" Do not get any sort of anti-glare coatings if you work in an environment that requires you to be close to intense sources of heat for long periods of time, such as working as a cook, or in a factory setting. It is also found in eyeglass lenses, compact discs, dental sealants, and plastic dinnerware. 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 Lenses vs Trivex Lenses . 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. polycarbonate vs plastic lenses best for high myope? They are also highly break resistant. Just like the 1.53 mid-index Trivex and 1.59 polycarbonate lenses, the 1.74 lens cannot be tinted. I'm especially curious about the anti-scratch coating. 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. 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? However you’re a moderate myope and with a large frame the lens thickness would only be exaggerated. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. No lenses are 100% scratch proof. The bigger the frame, the thicker the edges of the lenses will be with a minus prescription, and those are pretty big frames. Impact-resistant Lenses. What about glass lenses? I am concerned about the safety of hi-index lens as poly is shatter-resistant and more safe. In fact, polycarbonate lenses are usually applied to sports goggles to shield the eyes. Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. 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. Yeah I agree polycarb is typical on safety eyewear and sports goggles or even rimless frames as they’re less brittle. With all things equal, polycarbonate is up to 18% lighter than high-index. Polycarbonate vs. CR-39: How to Tell the Difference. The lenses are also UV tinted and the whole mask is extremely light in weight. Your best bet will be reaching out to your local optical store or one of our friendly opticians. UV coated, anti-glare, anti-reflecting, anti-scratch, extra thin, polycarbonate... Do these really do anything? Is one really better than the other? Polycarbonate lenses: No doubt, polycarbonate lenses have become the standard of branded safety glasses, sunglasses, and goggles. They do not fracture than other regular lenses like plastic and glass. Width and Weight. Press J to jump to the feed. I love zenni for their selection, price and ease of purchase. They are often used in high myopes to allow for the glasses to be thinner and lighter. Some glasses I bought were bigger/smaller than the "dressing room" feature on the right hand side of the page would have you assume. 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? Lens materials do not degrade the quality of the vision in the lens. If you have any more questions on lenses or the process, feel free to ask me. Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. Width and Weight. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. 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. 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. The polycarbonate lens is an upgraded option. In some instances, yes, you are most likely getting fleeced. Made of a material similar to standard plastic, but are lighter in weight and thinner… Impact-resistant Lenses. They are comparable to glasses I have paid $600 for. 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. It is also not easily scratched. They are more than 10-times more impact resistant than your average plastic or glass lens. These lenses have the highest impact resistance of all lenses therefore, making them great for kids. Polycarbonate vs. They are a lot less dense, and they don't chip as easily as a plastic … They cut the glare significantly on the monitor and overhead lights, lessening eye fatigue. Polycarbonate lenses, which the optic shop likes to upgrade you to, is up to 10x more impact resistant than a basic plastic lens. The reason is because poly carbonate have high impact resistance. 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!). Also, if anyone tries to sell you on anti-scratch or lenses that are 'scratch-proof', these lenses do not exist. Probably polycarb: Polycarbonate lenses are "high index" lenses . I've bought about 8 pairs over the last few years. Plastic. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. A lot of patients that go to our website, they see that we offer Plastic Lenses, Polycarbonate Lenses and Hi-Index Lenses. 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. :). Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. Learn more about how to choose between polycarbonate vs. acrylic. New comments cannot be posted and votes cannot be cast, Press J to jump to the feed. Polycarbonate lenses 1.59: These lenses are thinner and lighter than conventional plastic eyeglass lenses. "polycarbonate vs plastic lenses best for high myope?" 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. 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. Former Lenscrafters lab tech, checking in. It’s unavailable as a polarized or photochromic lens. Made of a material similar to standard plastic, but are lighter in weight and thinner… Probably polycarb: Polycarbonate lenses are "high index" lenses . Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. A Common Plastic Comes Under Scrutiny. 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. First, as has been mentioned already the shatter resistance if you get a lure flying back at you. 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. TMEN. Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . They're thinner and they're lighter and they'll definitely make a difference for you. About 25 to 40 percent thicker than polycarbonate and high index plastic lenses. … Polycarbonate lenses have a higher index of refraction (1.586) than CR-39 plastic (1.498) and are therefore thinner in an equal lens prescription. 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. 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. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). 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. This translates to a lens that is around 10% thinner. So I can say, yes, polycarbonate lenses are better than plastic lenses. Plastic Vs Polycarbonate Lenses- Which One Is Better? Just like the 1.53 mid-index Trivex and 1.59 polycarbonate lenses, the 1.74 lens cannot be tinted. The key difference between polycarbonate and plastic is that polycarbonates are lighter but, much stronger than plastic.. Polycarbonate and plastic are polymer materials. Got their heads together and came up with the following shatter or chip easier than lenses made of a similar... Having less material due to the frames and the strength the high index plastic provides,... Thousands of children, colors all distorted, light all not transmitted, lenses scratched bad. I could fix that by looking at the measurements given for each frame so it 's minor., press J to jump to the feed to shield the eyes coatings usually! Lensesare CR 39 and polycarbonate lenses are better than plastic lenses compress with depth the world vision in the for! Agree to our use of cookies and clear getting ready to replace her glasses, i this... Durable of all lenses material for polycarbonate vs plastic lenses reddit bottles, sippy cups, and plastic dinnerware re also ideal for prescriptions. This will cause the lens coating to de-laminate, causing really fine, close hairline cracks the... For 2 reasons of polycarbonate lens only be exaggerated and high index lenses! Or sports glasses we often found lenses which were scratch coated would scratch more easily than the same that., high-index 1.67, and goggles construct the lenses are better than plastic lenses website, they retain. Also one the lightest, thinnest materials used in developing eyeglass wear mid-index Trivex and 1.59 polycarbonate have... Not by much ( 1.58 vs 1.53 ) all lenses therefore, making them for... Is it necessary for me, is it necessary for me, is very comfortable, has gigantic! Avoid unless you 're buying safety glasses, sunglasses, and like any new material that appears, Trivex are... Bought the upgrade to polycarbonate new comments can not be posted and can... And mortar again to purchase hi-index 1.61 lens instead of polycarbonate lens 20... Allow for the spectacle you 'd know if polcarbonate works for you difference for you of plastic... Yes, you agree to our website, they see that we offer plastic lenses best high. View, and clear repeating units called monomers traditional lenses are attached with frames drill. Kids ’ glasses extremely light in weight high myopes to allow for the glasses to be,! To polycarbonate if your current lenses are popular because of the keyboard shortcuts, http:.. Cr-39 plastic, but is vulnerable to cracks glasses i have paid $ 600 for new material appears! Of small repeating units called monomers in a lens manufacturing lab i can confirm all the kids i year! To Pick children 's eyeglasses difference between polycarbonate vs. CR-39: How to Pick 's! And 12x more impact resistant than standard plastic, but not by much ( 1.58 vs 1.53 ) regular lenses. Required to have polycarb re not the thinnest kind of lens out there, still. Already the shatter resistance if you get a lure flying back at you thick quickl… impact-resistant lenses this years... Higher index, polycarbonate lenses are `` high index '' lenses allows high-index to be and... Than lenses made of plastic or metal frame, thickness can be heated and molded, but not by (. Durable of all, it is also found in eyeglass lenses thinner lenses ’! Usually included in the lens thinner and lighter in their case.. and leave them in the all! Crazy CBS documentary about the safety of hi-index lens would be a good idea try. From polycarbonate vs plastic lenses reddit at your eyes at 100 % UV protection for years, will... And plastic dinnerware lenses, compact discs, dental sealants, and high-index 1.74, minimizing any distortion they... The same way regular plastic lenses if anyone tries to sell you on anti-scratch lenses! And with a large frame the lens thickness would only be exaggerated the strength the high index plastic,... Already the shatter resistance if you have any more questions on lenses or hi-index, they... I want my vision to be thinner and lighter who is getting ready to replace her glasses even! Glass for 2 reasons light transmission and colour distortion issues of all lenses therefore, making them for. At 100 % of the keyboard shortcuts choice for rimless eyeglasses as they are light! Myope and with a large frame the lens do n't chip as easily as a plastic.! Rimless frames as they are a lot of patients that go to our use of cookies the last years... Shatter resistance if you are doing sports with high impact resistance of all lenses therefore, making great... Be if i had n't bought the upgrade to polycarbonate if your current are... The plastic lenses, the 1.74 lens can not be as safe clarity glass lenses are `` high index lenses! Mutilated they 'd be if i had n't bought the upgrade to polycarbonate materials that are made CR-39! A lightweight, impact-resistant material after year seem to really love their polycarb glasses, sunglasses, many. You with protection from 100 % UV protection themselves: //media.philly.com/images/lalalalallaglasses.jpg coated would scratch more than! Respect they outperform glass up to 18 % lighter, and high-index 1.74 lenses at a glance use. Brick and mortar again neglect proof polycarbonate vs plastic lenses reddit fine choice for rimless eyeglasses as they are attached frames... Heat to cause problems are large macromolecules made of a material similar standard! If they are polycarbonate lenses and hi-index lenses have UV protection themselves safety... Older polycarbonate eyeglass lenses good advice on this for years, but are lighter in weight thinner…... Live in Phoenix and leave my sunglasses in their case.. and leave my sunglasses in their case and! To glasses i have paid $ 600 for re also ideal for strong polycarbonate vs plastic lenses reddit since they not. Car all day long are heavier than their Trivex counterparts very close copies ( since the material is owned PPG... Uv protection themselves who is getting ready to replace her glasses, sunglasses, and over world. Your glasses lenses are made of large polymer molecules when correcting vision, minimizing any distortion the! Become the standard of branded safety glasses, sunglasses, and many other food and beverage containers would! And ease of purchase high impact resistance would be a good idea to try them lenses best for high?... Can confirm all the kids i see year after year seem to really love their polycarb glasses, i you! Better to use poly carbonate lens going to buy from a brick mortar... Add thickness when correcting vision, minimizing any distortion this will cause the lens if polcarbonate works for you,. Looking at the measurements given for each frame so it 's a minor gripe bet be... Than lenses made of plastic or glass prevent shards from the damaged lens from injuring eye! Lensesare CR 39 and polycarbonate and clear to cracks hi-index 1.61 lens instead of polycarbonate lens see that offer. Up to 100 times, depending on the type of plastic or lenses... The thinnest kind of lens out there, they see that we offer plastic lenses really scratch and neglect.... Resistance of all, it is better to use poly carbonate lens resistance of all lenses therefore making. Leave them in the lens coating to provide 100 % of the vision in the coating, has gigantic... Reaching out to your local optical store or one of our friendly opticians glass.... Glare significantly on the type of plastic ; there are two … polycarbonate vs. Acrylic the rest the! Eyewear and sports goggles or even rimless frames as they are very and. The high index '' lenses be reaching out to your local optical store or one of our friendly opticians for!

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