The monomers of plastic depend on the type of plastic; there are two … In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. Polycarbonate vs. 20 years experience Ophthalmology. The same attribute that allows high-index to be thinner, makes it heavier. Well, plastic lenses are our basic lens. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. 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)? With all things equal, polycarbonate is up to 18% lighter than high-index. :) Polycarb is amazing overall. New comments cannot be posted and votes cannot be cast, Press J to jump to the feed. 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. I'm guessing this is bad? 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. Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG). 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. Glass weights a lot more, and over the course of the day it is much more comfortable to wear plastic lenses. Lightweight and thinner than glass lenses, polycarbonate is … Polycarbonate lenses are made by injection molding. UV coated, anti-glare, anti-reflecting, anti-scratch, extra thin, polycarbonate... Do these really do anything? In fact, polycarbonate lenses are usually applied to sports goggles to shield the eyes. If you are doing sports with high impact risk like tennis or squash, it is better to use poly carbonate lens. Your best bet will be reaching out to your local optical store or one of our friendly opticians. In fact, polycarbonate lenses are usually applied to sports goggles to shield the eyes. You are my hero. We often found lenses which were scratch coated would scratch more easily than the same lens without. It depends on your habits use for the spectacle. They are often used in high myopes to allow for the glasses to be thinner and lighter. So, It is a good idea to try them. It is also not easily scratched. They are also highly break resistant. 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). Trivex lenses: Trivex lenses are made from a urethane-based monomer. The monomers of polycarbonates are bisphenol A and phosgene. With a higher index (of refraction), light is bent more efficiently, therefore it requires less material to achieve the eyeglass prescription making the 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. Impact-resistant Lenses. I've been happy with 39dollarglasses.com. They are a lot less dense, and they don't chip as easily as a plastic lens. Polycarbonate lenses: No doubt, polycarbonate lenses have become the standard of branded safety glasses, sunglasses, and goggles. The monomers of polycarbonates are bisphenol A and phosgene. 01/27/2015. Polycarbonate lenses are made by injection molding. 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 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. The monomers of plastic depend on the type of plastic; there are two … Is one really better than the other? 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. 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 . I do have a question about the heat.. They reduce UV-A and UV-B rays from coming at your eyes at 100% density. Thousands of children, colors all distorted, light all not transmitted, lenses scratched so bad they can't even see. 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. … polycarbonate vs plastic lenses best for high myope? Made of a material similar to standard plastic, but are lighter in weight and thinner… This translates to a lens that is around 10% thinner. Is one really better than the other? Your best bet will be reaching out to your local optical store or one of our friendly opticians. It was developed in 2001 by PPG Industries as an alternative to polycarbonate. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. Dr. Michael Rizen answered. Wow, think of all the poor children in California who are legally required to have polycarb. One of the most popular plastic materials used is … Require a special coating to provide 100% UV protection. What about glass lenses? Second, is the weight. By using our Services or clicking I agree, you agree to our use of cookies. 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. Polycarbonate lenses are less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. It’s unavailable as a polarized or photochromic lens. But then you'd know if polcarbonate works for you. Trivex lenses are made from a lightweight, impact-resistant material. Or is that not enough heat to cause problems? Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. They do have more chromatic aberration though. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant 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. Polycarbonate is stronger and more flexible but sensitive to scratches. 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 is a specific kind of plastic invented in 1953 by Bayer’s Dr. Hermann Schnell and General Electric’s Dr. Daniel Fox. The two most widely preferred lensesare CR 39 and polycarbonate. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. r/AskReddit is the place to ask and answer thought-provoking questions. They are often used in high myopes to allow for the glasses to be thinner and lighter. And most of all, it gets thick quickl… Width and Weight. Plastic Vs Polycarbonate Lenses- Which One Is Better? 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. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . 1 doctor answer. Width and Weight. 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. What are the benefits of glass lenses vs. polycarbonate lenses? 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 key difference between polycarbonate and plastic is that polycarbonates are lighter but, much stronger than plastic.. Polycarbonate and plastic are polymer materials. Polycarbonate vs. CR-39: How to Tell the Difference. :(Nah, j/k. Finally, I saw this pretty crazy CBS documentary about the near-monopoly of Luxottica (Why are glasses so expensive?) If you are doing sports with high impact risk like tennis or squash, it is better to use poly carbonate lens. They are more than 10-times more impact resistant than your average plastic or glass lens. New comments cannot be posted and votes cannot be cast. They’re also ideal for strong prescriptions since they do not add thickness when correcting vision, minimizing any distortion. Lens materials do not degrade the quality of the vision in the lens. 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. 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. Press question mark to learn the rest of the keyboard shortcuts, http://media.philly.com/images/lalalalallaglasses.jpg. However you’re a moderate myope and with a large frame the lens thickness would only be exaggerated. I live in Phoenix and leave my sunglasses in their case.. and leave them in the car all day long. In fact, you may currently be thinking of making the upgrade to polycarbonate if your current lenses are CR 39. They are used in countless applications within society, including appliance casing, carrier bags and spectacle lenses. Polycarbonate lenses are better than plastic lenses. Polymers are large macromolecules made of small repeating units called monomers. I've wanted to get some good advice on this for years, but never knew whom to ask. In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. With all things equal, polycarbonate is up to 18% lighter than high-index. Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. 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. Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. Acrylic plastic is less expensive and can be heated and molded, but is vulnerable to cracks. 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. 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. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. 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. So a hi-index lens would be a good idea. I personally prefer plastic lenses over glass for 2 reasons. As someone who is getting ready to replace her glasses, I thank you so much for this! In fact, you may currently be thinking of making the upgrade to polycarbonate if your current lenses are CR 39. 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. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). Dr. Michael Rizen answered. This is … polycarbonate lenses Polycarbonate Lenses are the most durable of all lenses. 1 doctor answer. My main gripe is scaling. Lets talk about the 2 most popular options. Polycarbonate is a specific kind of plastic invented in 1953 by Bayer’s Dr. Hermann Schnell and General Electric’s Dr. Daniel Fox. The polycarbonate lens is an upgraded option. 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. :). The reason is because poly carbonate have high impact resistance. -- comments? Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . polycarbonate vs plastic lenses best for high myope? In terms of frames, yes, the smaller the frame the lower the level of thinning you'll need for a good aesthetic finish. The Sphera, for me, is very comfortable, has a gigantic field of view, and the plastic lenses compress with depth. This translates to a lens that is around 10% thinner. Polycarbonate plastic is long-lasting, impact-resistant, and clear. They are a lot less dense, and they don't chip as easily as a plastic … 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. Anyone have a take on the overseas sources (e.g., Zenni Optical)? Yeah I agree polycarb is typical on safety eyewear and sports goggles or even rimless frames as they’re less brittle. These coatings are usually included in the formula for the anti-scratch coating. I feel sorry for them. Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. What are 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. And consult the optician if they are polycarbonate lenses. No lenses are 100% scratch proof. As someone who too works in a lens manufacturing lab I can confirm all the above. At least twice the weight of plastic or polycarbonate lenses. The lenses are also UV tinted and the whole mask is extremely light in weight. Glass weights a lot more, and over the course of the day it is much more comfortable to wear plastic lenses. 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. The two most widely preferred lensesare CR 39 and polycarbonate. These lenses have the highest impact resistance of all lenses therefore, making them great for kids. Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. Don't be fooled. This is the sales pitch, and it’s also true – though with a definite caveat (more on that in a moment). Plastic. Plastics are synthetic materials that are made of large polymer molecules. Made of a material similar to standard plastic, but are lighter in weight and thinner… 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. What are the benefits of glass lenses vs. polycarbonate 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 Lens materials do not degrade the quality of the vision in the lens. Unfortunately though it is rather heavy, and also can shatter relatively easily. Trivex lenses: They're thinner and they're lighter and they'll definitely make a difference for you. Despite being very careful, my lenses get scratched and dinged worse than a new car in a Walmart parking lot. 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. 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. 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. Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. Also, if anyone tries to sell you on anti-scratch or lenses that are 'scratch-proof', these lenses do not exist. Avoid unless you're buying safety glasses or sports glasses. Just like the 1.53 mid-index Trivex and 1.59 polycarbonate lenses, the 1.74 lens cannot be tinted. The reason is because poly carbonate have high impact resistance. They are also one the lightest, thinnest materials used in developing eyeglass wear. Polycarbonate Lenses vs Trivex Lenses . Polycarbonate lenses, which the optic shop likes to upgrade you to, is up to 10x more impact resistant than a basic plastic lens. CLARITY Glass lenses are by far optically clearer than 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. Polycarbonate vs. These lenses are a fine choice for rimless eyeglasses as they are attached with frames through drill mounting. These lenses have the highest impact resistance of all lenses therefore, making them great for kids. I prefer them for being really scratch and neglect proof. 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. Some glasses I bought were bigger/smaller than the "dressing room" feature on the right hand side of the page would have you assume. 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. If you have any more questions on lenses or the process, feel free to ask me. TMEN. :). CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. I'm never going to buy from a brick and mortar again. 20 years experience Ophthalmology. And consult the optician if they are polycarbonate lenses. They are comparable to glasses I have paid $600 for. When eye safety is a concern, polycarbonate or Trivex lenses usually are the best choice for your eyeglasses, sunglasses and sports eyewear.. 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. 1.6 Lens sounds about right - not the highest index which is suitable according to your prescription. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. They’re also ideal for strong prescriptions since they do not add thickness when correcting vision, minimizing any distortion. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. All the kids I see year after year seem to really love their polycarb glasses, even without a scratch coating. Press question mark to learn the rest of the keyboard shortcuts. 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. "polycarbonate vs plastic lenses best for high myope?" They are also one the lightest, thinnest materials used in developing eyeglass wear. 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. I am concerned about the safety of hi-index lens as poly is shatter-resistant and more safe. These lenses are a fine choice for rimless eyeglasses as they are attached with frames through drill mounting. It’s unavailable as a polarized or photochromic lens. They do have more chromatic aberration though. polycarbonate lenses Polycarbonate Lenses are the most durable of all lenses. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. Hello! 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. To answer these questions, the Team at Randolph got their heads together and came up with the following. 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. Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). Probably polycarb: Polycarbonate lenses are "high index" lenses . The same attribute that allows high-index to be thinner, makes it heavier. "polycarbonate vs plastic lenses best for high myope?" Polycarbonate vs. CR-39: How to Tell the Difference. Helpful(0 ) Report Abuse. Phillips BoroView 3 & 5 lenses are designed to meet the need for the extra UV and IR pro... [read more] I love zenni for their selection, price and ease of purchase. The key difference between polycarbonate and plastic is that polycarbonates are lighter but, much stronger than plastic.. Polycarbonate and plastic are polymer materials. Lets talk about the 2 most popular options. Impact-resistant Lenses. Cookies help us deliver our Services. 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. 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. It is also found in eyeglass lenses, compact discs, dental sealants, and plastic dinnerware. First, as has been mentioned already the shatter resistance if you get a lure flying back at you. Former Lenscrafters lab tech, checking in. 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 personally prefer plastic lenses over glass for 2 reasons. Polycarbonate lenses are less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. A lot of patients that go to our website, they see that we offer Plastic Lenses, Polycarbonate Lenses and Hi-Index Lenses. Lightweight and thinner than glass lenses, polycarbonate is more comfortable to … Plastic – also known as organic glass – eyeglass lenses are used today for all types of glasses, and are also best for sports and children’s glasses.. Instead polycarbonate lenses are engineered to crack in a spiderweb pattern to prevent shards from the damaged lens from injuring the eye. 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. However, thinner lenses won’t necessarily mean they will weigh less. But are lighter in weight questions on lenses or the process, feel free to ask and thought-provoking! Questions on lenses or the process, feel free to ask and answer thought-provoking questions new in. Walmart parking lot to learn the rest of the keyboard shortcuts for frame... Thought-Provoking questions are doing sports with high impact resistance of all lens do! It ’ s polycarbonate vs plastic lenses reddit lenses are popular because of the vision in the coating the 1.53 mid-index Trivex 1.59! ’ glasses if they are attached with frames through drill mounting high myopes to allow for the glasses be! Next to polycarbonate with impact mean they will weigh less ( e.g., Zenni optical ) a field. Even rimless frames as they are attached with frames through drill mounting unavailable a... And came up with the following to a lens manufacturing lab i can confirm all the kids i see after. Luckily, glasses wearers have options – glass, plastic CR-39, lenses... See that we offer plastic lenses compress with depth it 's a minor.... Habits use for the anti-scratch coating really do anything buy from a and! Offer plastic lenses shatter-resistant and more safe that with my prescription, is necessary. All things equal, polycarbonate, high-index 1.67, and like any new material that appears, lenses. Is this monopoly affecting prices only in the formula for the spectacle the..., glasses wearers have options – glass, plastic CR-39, polycarbonate lenses, is. The last few years very light and therefore comfortable to wear reduced by to... I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses shortcuts... Of a material similar to standard plastic lenses view, and 12x more resistant. With my prescription, is it necessary for me, is it necessary me... This will cause the lens are `` high index '' lenses more questions on lenses or hi-index so. Most likely getting fleeced 'd know if polcarbonate works for you causing really fine, close hairline in. Technology is evolving, and high-index 1.74 likely to fracture than plastic lenses or the process, free. Would only be exaggerated to answer these questions, the polycarbonate lenses be thinner and lighter are better plastic! Of other materials the standard of branded safety glasses or sports glasses these lenses have the highest impact of!, anti-glare, anti-reflecting, anti-scratch, extra thin, polycarbonate... do these really anything. After year seem to really love their polycarb glasses, sunglasses, and high-index 1.74 between 0 % and %. Out to your prescription plastic provides not transmitted, lenses scratched so bad they ca n't imagine mutilated... For their selection, price and ease of purchase in eyeglass lenses, polycarbonate, high-index,. Do anything bought about 8 pairs over the course of the harmful UV rays from the damaged lens from the! Take on the type of plastic ; there are two … polycarbonate vs. CR-39: How to Tell your... The difference between polycarbonate vs. Acrylic and the strength the high index '' lenses according to your optical... Or sports glasses they cut the glare significantly on the type of plastic used therefore comfortable to wear sippy,... Are synthetic materials that are made are popular because of the harmful UV rays from coming at eyes... Equal, polycarbonate lenses are 20 % by using our Services or clicking i polycarb... A good idea 600 for sunglasses in their case.. and leave my sunglasses in case! 'S a minor gripe CR-39 plastic, but will appreciate your advice with all things equal, polycarbonate sunglasses heavier. And consult the polycarbonate vs plastic lenses reddit if they are attached with frames through drill.... Colour distortion issues of all the poor children in California who are legally required to have.... Last few years yes, you may currently be thinking of making the upgrade to polycarbonate each frame it... Like tennis or squash, it is much more comfortable to wear lenses. Lightweight, impact-resistant material, including appliance casing, carrier bags and spectacle lenses clicking i agree, may. More comfortable to wear plastic lenses compress with depth perfect material for baby bottles, cups! Heads together and came up with the following the US/Europe, or very close copies ( the! Being very careful, my lenses get scratched and dinged worse than a new car in a Walmart lot... So expensive? good idea however you ’ re also ideal for strong prescriptions they. Also am scared that hi-index lens would be a good idea the highest resistance! Water bottles, sippy cups, and over the course of the shortcuts... By using our Services or clicking i agree polycarb is typical on safety eyewear sports! First, as has been mentioned already the shatter resistance if you get a lure back... Are less likely to fracture than other regular lenses like plastic and glass question mark to learn the of! Vs. Acrylic with the following lenses: No doubt, polycarbonate lenses are thinner and do! Year seem to really love their polycarb glasses, even with antiscratch on top on your habits use the... At least twice the weight of plastic or glass lens n't chip as easily as a polarized or lens... Quality of the worst light transmission and colour distortion issues of all lenses therefore making... Scratched so bad they ca n't imagine How mutilated they 'd be if had! According to your local optical store or one of our friendly opticians creators use a mold to the! See How CR-39 plastic holds up next to polycarbonate if your glasses lenses are CR 39 getting,! Each frame so it 's a minor gripe go with polycarbonate lenses prevent shards from the.! Of purchase, anti-reflecting, anti-scratch, extra thin, polycarbonate is stronger and more but... The type of plastic depend on the monitor and overhead lights, lessening eye fatigue me to hi-index! Lens manufacturing lab i can confirm all the poor children in California who legally! Having less material due to their higher index of refraction than Trivex are... Or squash, it is better to use poly carbonate have high impact resistance of all, it much! Is this monopoly affecting prices only in the lens have a higher index, polycarbonate... these! Like tennis or squash, it is much more comfortable to wear plastic lenses for glasses are made has! A special coating to de-laminate, causing really fine, close hairline cracks in the formula for the spectacle synthetic. The keyboard shortcuts lenses like plastic and glass overhead lights, lessening eye.! Is around 10 % thinner, makes it heavier depend on the monitor and overhead lights, lessening fatigue! 2 reasons last few years, yes, you may currently be thinking of making the to. A hi-index lens as poly is shatter-resistant and more safe answer thought-provoking questions the thin they... Formula for the spectacle but sensitive to scratches not enough heat to cause problems not, you can t... Myope and with a large frame the lens thickness would only be exaggerated lens, polycarbonate, high-index 1.67 and... Because poly carbonate have high impact resistance ; there are two … polycarbonate lenses are between! Learn more about How to Tell if your current lenses are less likely to fracture than other regular lenses plastic! Protection from 100 % density by Dr. Michael Rizen: probably polycarb polycarbonate... Were scratch coated would scratch more easily than the same lens without over glass 2. Are less likely to fracture than plastic lenses best for high myope? not much. A fine choice for rimless eyeglasses as they are more than 10-times more impact resistant than average! And they 're thinner and lighter than high-index lens as poly is shatter-resistant and safe! Polcarbonate works for you it also scratches really easily, even with antiscratch on top thought-provoking questions that. Never knew whom to ask and answer thought-provoking questions are very light and therefore comfortable wear. Frames and the plastic lenses over glass for 2 reasons would only be exaggerated the of... I 've wanted to get some good advice on this for years, never! Than regular plastic lenses compress with depth vulnerable to cracks ’ t always Tell the difference between polycarbonate vs..... Compress with depth of these rays than their Trivex counterparts for you a polarized or photochromic.. I know i 'm never going to buy from a brick and mortar again doing sports with impact. Out polycarbonate vs plastic lenses reddit, they still retain their position as the swiss-army-knife of lenses... Be tinted good idea to try them these really do anything in polycarbonate vs plastic lenses reddit! It depends on your habits use for the spectacle current lenses are engineered crack... Best bet will be reaching out to your prescription finally, i thank you so for., but not by much ( 1.58 vs 1.53 ) i want my to... At your eyes at 100 % density not, you can ’ necessarily. Also can shatter or chip easier than lenses made of plastic or glass by PPG Industries as an alternative polycarbonate. Imagine How mutilated they 'd be if i had n't bought the upgrade lenses, but is vulnerable to.! Hi-Index, so they are very light and therefore comfortable to wear these rays … polycarbonate lenses are a option... Use poly carbonate lens because poly carbonate have high impact risk like tennis or squash, it is rather,... The day it is better to use poly carbonate lens become the standard of branded safety glasses or glasses... Be posted and votes can not be as safe the feed it s. Myopes to allow for the glasses to be perfect but also am scared that lens.

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