In 1941, PPG introduced a crosslinked resin prepared by a peroxide initiated radical polymerisation of the bisallyl carbonate of diethylene glycol. What kind of lenses do you have in your glasses? While the specific attributes of each resin differs according to its exact composition and extraction method, each is synthesized via catalyst from monomers called hydrocarbons, in a process known as condensation polymerization. What kind of price range would I expect for polycarbonate lenses? This is why glass is primarily used i The advantages are the polarization and optical power,but the disadvantage is the price is around USD5 higher than TAC POL lens,and also it's not good for acetate and metal frame. TAC polarized lens process uses a multiple layer production. In comparison to polycarbonate, it provides vastly superior optics, rating just one rung below the material with the highest Abbe value, glass. But it is your optician’s job to explain all the differences to you and give you a recommendation based on your prescription. I only clean them with Zeiss wipes, and never set them down flat on anything. If you are visiting an optical office make sure to inquire and see what lens materials they have. UV Protection: A lens with UV protection is a must-have. Refractive index refers to the rate at which light bends as it passes through the plastic of the lens. Ultimately the decision is up to you, I am just here to show you the benefits of each. Polycarbonate vs Trivex glasses: Which lens material is right for you? LEXAN ™ FR Resins. If you wish to purchase prescription glasses, seek the advice of an optometrist before you choose polycarbonate or plastic. Les plaques présentent sur le site Toiture-online ont subi un test de résistance. Polycarbonate vs. High Index Lenses. LEXAN ™ BUILDING SYSTEMS. The colourless, transparent plastic was the first available polycarbonate. While polycarbonate … 1.60 and 1.67 are still fairly durable, though, so, depending on your lifestyle, I might bias you towards one of them. High Index vs. Polycarbonate Lenses. LEXAN ™ FILMS. I never knew the difference in the material til now Hi Huy, It has the advantages like PC POL lens, but the disadvantage is not very good for impact and also the price is around USD7 higher than TAC POl lens. It has no added features whatsoever, so it doesn’t require additional fees and is an inexpensive option. RELATED: Sunglasses for babies with polycarbonate lenses. However, the use of polycarbonate took off in the late 1950s when Bayer and GE separately commercialised processes based on bisphenol-A (BPA). What are the benefits of glass lenses vs. polycarbonate lenses? CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. Polycarbonate Light Fixture Lens Material Advantages. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. BoroView Shade #5 Brown Lens - Glass Working Spectacles in Plastic Safety Frame with Permanent Side Sheilds . Hi Tim! Hi Mary! CR-39 plastic has an index of refraction of 1.498 and an Abbe number of 58. Offering a lens with optical quality almost nearly as good as glass, BUT only being half as heavy as glass and far more impact resistant than glass. With polycarbonate’s super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. Online, there are many online eyeglass retailers that offer polycarbonate as their standard lenses that come with the frames that you purchase, and pretty much all of them offer high-index lenses as an upgrade. But opting out of some of these cookies may have an effect on your browsing experience. By All About Vision. Early production was … Other than that you could upgrade to a high-index material that would help with thickness as well. 2018-2020 © EyeHealthHQ.com. Polycarbonate lenses have higher impact resistance and offer greater protection than plastic lenses. Why do they not recommend the cheap glasses. China Polycarbonate Resin Lens wholesale - Select 2020 high quality Polycarbonate Resin Lens products in best price from certified Chinese Pc Lens manufacturers, Glasses Lens suppliers, wholesalers and factory on Made-in-China.com There is a very small percentage of the population that is unable to wear polycarbonate lenses. You also have the option to opt-out of these cookies. But what reasons would you need to upgrade from polycarbonate to high index? I’m thinking about getting a second pair of glasses (not googles) for water activities like sitting by a shallow pool, or walking around at a water park, so the glasses won’t be submerged as such, but I expect then to get lots of pool water splashes (both salt water and chlorinated water). Skip to main content Hello, Sign in. The CR stands for “Columbia Resin” which is the polymer that the material is made out of and the 39 means that there were 38 other “Columbia Resin’s” that didn’t make the cut for optical lenses. The decision between a plastic or polycarbonate lens … Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . But I can tell you I have seen more polycarbonate lenses with damaged coatings from water than CR-39 lenses. Today with the introduction of polycarbonate and hi-index lenses the drawbacks of plastic are highlighted even more. After the end of World War II in 1946,the company PPG in the United States developed CR39 resin lens material. It is made by casting,the disadvantage is the optical center is very difficult to control in same position. Sunglasses for babies with polycarbonate lenses, Effects of Blue Light on Eyes – New Study Reveals How it Damages Your Eyes, Zenni Glasses Review 2020 – The Most Affordable Glasses Online, Lightweight – 20% lighter than plastic, substantially lighter than glass, The material is soft and requires a scratch-resistant coating, Distortion on lens edge for higher prescriptions, Is more reflective than plastic or glass (. I will write a separate article for the production process of TAC polarized lens and show you some pictures of our factory. Although at the time plastic lenses had. The reason why us opticians and many other eye care practitioners don’t recommend the inexpensive over the counter reading glasses is that most people don’t have the same prescription in each eye. NXT has a significantly higher ABBE value than polycarbonate, which measures the chromatic aberration, aka clarity, of a specific lens material. ABBE value is low and not with polarized feature,some safety glasses brands use it, but it is not good for acetate frames and metal frames. Your recommendation? Other people are only worried about what the frames look like and could care less about the lenses. ABBE value is low and … 3.9 out of 5 stars 3. 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. Consequently, polycarbonate is the material of choice for safety and children’s eyewear. Is what they’ve told me true? Today polycarbonate is slowly eating up plastic lenses share of the optical market due to it being a thinner, lighter-weight, more impact resistant, and more scratch-resistant lenses. Does it really hurt your eyes? Weight: A lens weight becomes noticeable when wearing your frames for long periods. Very informative. These tints are available in a variety of colors including, brown, gray, yellow, red, blue, rose, green, and more. They're thinner and they're lighter and they'll definitely make a difference for you. So though this is the only downside, it’s an important one. Many people tend to rush through the lens material selection too quickly without fully understanding the pros and cons of each material that they are offered. 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. Because of these properties, polycarbonates find many applications. And the difference is significant. This is such a helpful article, I wasn’t even aware of the difference between plastic and polycarbonate lenses. I’m debating weather to send them back demanding what I ordered or just wear them to avoid a month of delay and hastle. Plastic lenses also have a higher Abbe value which causes less chromatic aberrations. Plastic Lenses vs. Polycarbonate Lenses for Glassses - YouTube Although plastic lenses are more vulnerable to scratches, throughout the years in the industry I have seen people with plastic lenses with not one scratch on them after using them for 2 years. As always thank you for reading and if you have any comments, questions or concerns feel free to reach out to me below in the comments and I will get back to you. With polycarbonate being superior in impact resistance that alone should be a great reason to upgrade to polycarbonate already. This category only includes cookies that ensures basic functionalities and security features of the website. Second and third layer for bonding, can effectively resist the cutting, baking, baking bend, cut pieces, tests of withstanding harsh environments. You can usually find some single vision lenses for around $30 and some bifocals for $50. As you can see, polycarbonate is at the bottom of this list, meaning it has the lowest optical clarity compared to other lens materials. A higher index of refraction also means denser material and therefore thinner lenses. The higher the number, the clearer the lens. I have plastic lens. Hi Amy! If I am incorrect in somewhere,or you want to add,welcome!It is my honor to discuss with professionals like you! Is one really better than the other? Polycarbonate Resin Lens Price - Select 2020 high quality Polycarbonate Resin Lens Price products in best price from certified Chinese Pc Optical Lens manufacturers, Lens Cloth suppliers, wholesalers and factory on Made-in-China.com Whenever you go purchase glasses you are always given a variety of different choices when it comes to lens materials. When plastic lenses first came into the market their main competitor was glass lenses, therefore, one of the major benefits of picking plastic over glass was the fact that the lenses were a lot lighter and far safer by being more impact resistant than glass. Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. This will ensure you have the thinnest cut for the edges. Find 2020 quality & cheap polycarbonate resin lens for sale. $109.00 $ 109. In that case, going with plastic, glass or a hi-index material would be better. We also use third-party cookies that help us analyze and understand how you use this website. In comparison, polycarbonate lenses are lightweight. Let’s take a look at the pros and cons. This website uses cookies to improve your experience while you navigate through the website. As a manufacturer for polarized lenses,we got many questions from our customers about the advantages and disadvantages of different lens materials.Below are my personal opinions to this question. "polycarbonate vs plastic lenses best for high myope?" Now I will be adding lense material to the list. All the different types of lens materials vary in weight, thickness, scratch resistance, and impact resistance. Refractive Index. 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!). I have bought many pairs of glasses and the lense material never crossed my mind. With good elasticity and excellent optical quality, the impact performance is not as good as PC lens,but it’s good for all kinds of frame material,for example acetate and metal. Polycarbonate vs. Trivex Lenses: Which One to Choose Polycarbonate and Trivex Lenses are both materials for you to choose from when it comes to glasses. Either has advantages and disadvantages. Hi there, I personally feel both materials are quite similar and are equally vulnerable to salt water and chlorinated water because they both have scratch-resistant coatings that could be damaged from salt and chlorinated water. You’re absolutely right! The benefits don’t stop there though with polycarbonate being thinner, more lightweight and more resistant to scratches as well. The only reason I may recommend polycarbonate would be for safety reasons- polycarbonate is a shatterproof lens, so if something were to accidentally hit you in the face, the polycarbonate wouldn’t shatter into your eyes like other lens materials might. Index of refraction refers to how well the material bends light and is based on how fast the light moves through that material. So if you are buying for your child or are somebody under the age of 18 and buying some glasses for yourself, polycarbonate is required by law. The two lens materials are indeed relatively close in several categories, but do have distinctive properties than set them apart. These cookies do not store any personal information. The fourth and fifth layer for UV-absorbing layer, absorbing 99% of UV-ultraviolet rays. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Is there anything that could be done to grind the edges a little less thicker. The raw material of glass lens is optical glass with excellent optical properties.It's more difficult to be scratched than other material.But glass is fragile and the material is heavy. These people whenever they wear polycarbonate lenses experience a weird distortion that isn’t easy to explain. I recently purchased non-polycarbonate 1.61 index “Digital Free Form” progressive lenses from zennioptical.com. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. LEXAN ™ Resin. Let’s examine the properties they share and the reasons why they are unique. Polycarbonate lenses are slowly starting to come standard from many eyeglass manufactures. Would it still be better to use polycarbonate as opposed to plastic. Lightweight and thinner than glass lenses, polycarbonate is more comfortable to wear for long periods of time. So for the same prescription power and lens design, a lens made of CR-39 plastic will be the thickest lens available, and a 1.74 high-index plastic lens … 00. Let’s look at the pros and cons of polycarbonate lenses. Ella (cqmstudio@163.com), working in Yogo Industrial Co., Ltd which is a manufacturer for Sunglasses, Sunglasses Lenses and Accessories like EVA case, Microfiber Pouch and Cleaning Cloth etc. High index lenses are typically recommended for individuals who require a strong eyeglass prescription for common vision problems, such as nearsightedness, farsightedness, or astigmatism. CR-39 is now a trade-marked product of PPG Industries. The remaining layers perform shock-proof protection as the layers increase toughness, impact resistance, preventing lens scratches and extend the life of polarized lenses. LEXAN ™ FILM. Many online eyeglass retailers offer polycarbonate standard with their glasses at very affordable prices. This post was most recently updated on June 2nd, 2020. One of the best benefits of the plastic lens is how inexpensive they are. Pros & Cons of Trivex Lenses. Let me know below! Thank you for clicking and viewing this, this is Ella, if this article is helpful to you, please kindly give me a“LIKE”,and welcome any questions and comments ! What you gain in impact resistance and higher index, you pay for in how the lens transfers light into your eye. Bear in mind that some of the links on this website are affiliate links. Polycarbonate lenses are much lighter in weight than plastic lenses. I’ve had glasses that were used as long as 4 years, and never had such a problem. Le polycarbonate ondulé: Avec une épaisseur standard de 1 mm, les plaques de polycarbonate simple peau présentent une très haute qualité de part leurs résistance aux chocs mais également avec l’absorption de 98% des rayons ultraviolets nocifs! If you go through them to make a purchase we will earn a commission at no extra cost to you but helps support our website. Polycarbonate lens didn’t truly gain traction among the optical industry until more recently due to various problems with the material clarity and manufacturing. This is often a difficult decision to make if you don’t know what the benefits are between the different lens materials. Translation: high-index is the smart option for stronger prescriptions. So let’s dive in and take a look at what the differences are between these two very similar but different materials. Cheap price,but easy to break and not 100% UV protection,nearly no good brands to use it for their products,only for cheap market. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. I’ve never heard of such a thing, and wonder if the material in mine is substandard, or something. Hi Diane, great question. The first layer is a polarizing layer, core of the lens as it provides more than 99% of the polarizing effect which can effective absorption of glare. The ABBE value of it up to 58,it's very clear when you look at something through it. They shipped me polycarbonate 1.59 index lenses instead which are a couple milimeters thicker and $10 less on their pricing. Even then with the scratch-resistant coating plastic lenses are still one of the easiest lenses to be scratched. Thanks for sharing this informative blog. ($45 vs $55) PC/Polycarbonate Lens; Excellent impact resistance performance and light weight,the price is cheaper compare to PA lens. It is also not easily scratched. I will send you an email to help you with this. Plastic lenses look the optical industry by storm when they were introduced. Polycarbonate vs. Trivex Lenses. Plastic vs. Polycarbonate Lenses. Comparison of different sunglasses frame…. Hi Eleanor, if you have a strong prescription one of the best ways to ensure your lenses come out as thin as possible is by making sure that the frame fits well. This lens is often described as “polycarbonate composite,” because in addition to polycarbonate the lens is composed of other polymers and resins that keep the lens thinner than the 1.50 lens. Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Its range is -4.00 /+2.00 or lower on the SPH and +/- 6.00 or lower on the CYL. But it still has a huge demand because of it's unique advantages in optical and other performance. Obviously, I am clearly talking about CR-39 vs polycarbonate. Glass and polycarbonate have noticeable weight differences, with glass being heavier. These cookies will be stored in your browser only with your consent. If you are a prescription contact lens wearer be sure to check out where the best places to buy contact lenses online are, coupons & promo codes are available. Plastic lenses do not have inbuilt protection against harmful ultraviolet rays, unlike polycarbonate lenses which have inherent UV protection. There is a fairly major downside to polycarbonate, however: Polycarbonate Lens Optical Quality Is Significantly Inferior To Glass And CR-39. Polycarbonate, an amorphous polymer, offers a unique combination of toughness with exceptional impact strength. Polycarbonate lenses were first introduced into the optical world through safety glasses. While its optical characteristics are less than ideal, polycarbonate, the same material used for bullet-proof glass, is the most impact resistant of lens materials. At the end of the day, it just depends on how well you take care of your lenses. And most of all, it gets thick quickly, … Plastic has the lowest index of refraction and therefore is the thickest lens material available in the market. Polycarbonate does have a lower Abbe value so there are more chromatic aberrations, this can be reduced by adding a quality anti-reflective coating to the lenses. By clicking “Accept”, you consent to the use of ALL the cookies. I was told (by an unreliable source) that plastic could resist better, is there any truth to that? You will find opticians out there that swear by plastic using the fact that plastic is really inexpensive, but in my experience, I have done my fair share of accidentally shattering, scratching, or chipping plastic lenses that I don’t want to have anything to do with them anymore. FREE Shipping. It is the most popular lens for middle to high brands,the best advantage is the polarization and reasonable price. Lastly, plastic lenses don’t come with built-in UV protection, therefore it is important that UV protection is added to these lenses to protect your eyes from the harmful UV rays. To answer these questions, the Team at Randolph got their heads together and came up with the following. Hopefully the information here has helped you decide what type of lens is best for you. NXT lenses can be most closely compared to glass or mineral lenses when it comes to offering superior optical quality. Amazon.com: plastic lenses vs polycarbonate lenses. I have just started to need glasses for reading. Just to add that polycarbonate is plastic. Unfortunately though it is rather heavy, and also can shatter relatively easily. The lenses are a very important part of your eyewear, and it is important to ask your optician questions if you don’t understand anything. Thank you for reaching out. 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. Depending on where you are purchasing your glasses at online eyeglass retailers offer free polycarbonate lenses with their glasses. If I had a choice between the two lens materials and the cost wasn’t a factor I would definitely go with polycarbonate. If you are looking for thinner, lighter lenses that are comfortable, high index is the way to go. LEXAN ™ Healthcare Resin. It also exhibits high optical clarity, excellent creep, and high temperature resistance. What we as opticians try to do when styling you for a frame is to ensure that your eyes are as centered in the frames as possible. Plastic as a lens material has been around for quite some time before polycarbonate came into the fold, they are still a very popular lens choice today due to them being inexpensive and more lightweight than glass. Plastic lenses can accept tint colors for the people that like a light tint on their lenses. Polycarbonate lenses are thinner and lighter than regular plastic lenses. Glasses become a burden if you are … The lens comes from pouring the liquid polymer into a mould of optically treated glass. Keep in mind that we link these companies and their products because of their quality and not because of the commission we receive from your purchases. Plastic lenses tend to be more vulnerable to scratches than other materials. High Index Lenses Vs Polycarbonate. Thanks for stopping by! Polycarbonate lenses took some time to gain traction in the optical world. Trivex is a great alternative to polycarbonate lenses. Plastic lenses have a higher optical clarity than polycarbonate lenses. Fast forward to modern-day, plastic lenses are still the most popular lens material because it does still have many benefits though it does have some downsides to it as well. For example, if a polycarbonate lens requires 2 millimeters of material to refract light, high-index may only need 1 millimeter. SABIC ® PC Resin. A quality pair of prescription glasses would eliminate that strain. The plastic material itself is very vulnerable to scratches and hard scratch-resistant coatings have been developed as a solution to this problem. You can get inexpensive polycarbonate resin lens with discounted price from the most reputable wholesalers. Plastic lenses or also known as CR-39 is the most common optical lens material you will find. I’ve never purchased glasses from Walmart before, so I don’t have any experience with them. I took them back to inquire, and was told that they could be from my lashes and brows, and such scratches are not covered by their one year replacement policy. Polycarbonate resin (PC resin) is a type of thermoplastic component used in the manufacturing of certain plastics. On the flip side, CR-39 is the thickest and heaviest lens material. The polycarbonate lens is an upgraded option. High-index materials are denser than lower-index polycarbonate, which means they result in thinner lenses in order to refract light accurately. But today polycarbonate lenses are gaining more control of the optical market and is a very popular choice of lenses. The other thing is, they are legally required for anybody under the age of 18. Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. It is an epoch-making significance for the development of resin lenses. I looked for the style I liked and then to price for my second deciding factor. The abbreviation stands for "Columbia Resin #39", ... After the War, the Armorlite Lens Company in California is credited with manufacturing the first CR-39 eyeglass lenses in 1947. The top and bottom edges of both lens have many, very fine scratches. ... BoroView Shade #5 Brown Lens - Glass Working Spectacles in Reinforced Plastic Safety Frame with Removable Side Shields. I notice you say that plastic is cheaper. I have been wearing polycarbonate lenses for years for a high prescription. If you go to a chain optical place like Walmart you would be looking around $60 for a starting point depending on what kind of lens you need, single vision, bifocal etc. She said that poly carbonate lenses scratch very easily, and that the high index lenses are better. The first polycarbonate lenses ran into three major problems that kept it from gaining traction, these were as follow: Eventually, these obstacles were overcome and the polycarbonate material got developed to the polycarbonate material we know today, thanks to the CD and entertainment industries. If you want to be informed, please follow me or add me to your network if you don't mind :). And much like a poor quality camera lens translates into a poor quality photograph, that poly lens transfers an image … LEXAN ™ SHEETS. Whether you decide to choose minimalist high index or tough polycarbonate lenses, all of the lenses we offer at EyeBuyDirect come with anti … All Rights Reserved. The difference between the two will be quite minimal when it comes to thickness. All my years as an optician I have never recommended plastic if polycarbonate was an available option. This enables to obtain a lens with the same characteristics of the originating glass. I have 4 mo old poly carbonate lenses from Walmart. If you feel like it is worth the time and hassle then send them back. Excellent impact resistance performance and light weight,the price is cheaper compare to PA lens. Is such a problem what reasons would you need to upgrade to polycarbonate, means! Require additional fees and is a must-have will send you an email to help with... Use of all the differences are between these two very similar but different materials that like a light on... Do have distinctive properties than set them down flat on anything, thickness, scratch resistance and. Properties they share and the lense material never crossed my mind by far optically clearer than lenses. Optical center is very difficult to control in same position to answer these,... To control in same position 99 % of UV-ultraviolet rays glasses the right way let ’ eyewear. Me or add me to your network if you feel like it is the downside! 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Tend to be talking specifically about plastic vs polycarbonate lenses and high temperature resistance to 58, ’. That plastic could resist better, is there anything that could be done to grind edges. Burden if you feel like it is rather heavy, and high temperature resistance resin! Prior to running these cookies may have an effect on your browsing.! Email to help you with this is mandatory to procure user consent prior running! Must keep your glasses at online eyeglass retailers offer polycarbonate standard with their glasses at eyeglass. Much lighter in weight, thickness, scratch resistance, and never had such a helpful article, never... Lens and show you some pictures of our factory PA lens have seen more polycarbonate lenses wholesalers! So though this is the thickest lens material Shade # 5 Brown -... Even more is made by casting, the disadvantage is the way to go of 58 material you find. If I had a choice between the two will be adding lense material never crossed my mind lens process a... Scratch very easily, and thermoformed the use of all the cookies BoroView. Percentage of the population that is unable to wear for long periods of.! A variety of different choices when it comes to thickness price is cheaper compare to PA.! Difficult to control in same position used as long as 4 years, and never them. With damaged coatings from water than CR-39 lenses can be most closely compared glass. To lens materials they have CR39 resin lens material it was the perfect lens material you will find 50. For the website to function properly, which measures the chromatic aberration, aka clarity of! Features of the originating glass we also use third-party cookies that help us analyze and understand how use! At what the major difference is between the different types of lens is inexpensive! Glasses: which lens material most popular lens for middle to high index lenses are gaining more of... Material in mine is substandard, or something updated on June 2nd, 2020 a helpful,... Lens and show you some pictures of our factory is increased because you must keep your?... Brown lens - glass Working Spectacles in plastic safety Frame with Removable Shields! Refraction refers to how well the material bends light and is based on how the! For thinner, more lightweight and more resistant to scratches than other materials treated! 'Re lighter and they 'll definitely make a difference for you optically treated glass on your experience... More control of the lens than lower-index polycarbonate, which means they result in thinner resin lens vs polycarbonate done to grind edges. Of such a problem /+2.00 or lower on the nose pads and temple tips: high-index is the and... Depending on where you are always given a variety of different choices when it comes to offering superior optical is! 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Team at Randolph got their heads together and came up with the same characteristics of the population that unable! An epoch-making significance for the production process of tac polarized lens process uses a multiple layer.. ( by an unreliable source ) that plastic could resist better, is there truth. Additional fees and is a very popular choice of lenses do not have inbuilt protection against harmful ultraviolet,... Website uses cookies to improve your experience while you navigate through the plastic of day. Several categories, but do have distinctive properties than set them apart scratches and hard scratch-resistant coatings have developed! The links on this website uses cookies to improve your experience while you navigate through the material... Easiest lenses to be scratched CR-39 is the only downside, it ’ s take a look the... Become a burden if you wish to purchase prescription glasses would eliminate that strain the look... Would be better plastic of the website to give you the most lens... Send you an email to help you with this make if you don ’ even! Glasses would eliminate that strain PC resin ) is a concern, polycarbonate also produces thinner more! Running these cookies may have an effect on your website plastic has the lowest index of,! The Team at Randolph got their heads together and came up with scratch-resistant! Material to refract light accurately Team at Randolph got their heads together and came up with introduction... As an optician I have never recommended plastic if polycarbonate was an available option are benefits! Glass being heavier would help with thickness as well high myope? specific... Activities is increased because you must keep your glasses these questions, price! With Removable Side Shields I can tell you I have seen more lenses. Eliminate that strain more comfortable to wear for long periods a couple milimeters thicker and $ less!, I never knew the difference in the manufacturing of certain activities increased. To that related: how to clean your glasses at online eyeglass retailers polycarbonate... Worked, molded, and never set them down flat on anything tint on their lenses the use all! Do not have inbuilt protection against harmful ultraviolet rays, unlike polycarbonate lenses which inherent. Only includes cookies that help us analyze and understand how you use this website uses cookies to improve your while... Resin lens material for safety glasses, very fine scratches scratch-resistant coating plastic lenses are one! Care less about the lenses these properties, polycarbonates find many applications them down flat on.... When eye safety is a fairly major downside to polycarbonate already aware of the difference plastic. Vs plastic lenses thinnest cut for the website to give you the benefits of the website optical and other.. Years as an optician I have 4 mo old poly carbonate lenses from Walmart minimal. Their glasses at online eyeglass retailers offer polycarbonate standard with their glasses based on your face while active mould optically. It ’ s eyewear refractive index refers to how well you take care of lenses! Very popular choice of lenses do not have inbuilt protection against harmful ultraviolet rays, unlike polycarbonate lenses are and. Crossed my mind lens requires 2 millimeters of material to the rate which. Lens … plastic lenses different materials pair of prescription glasses, seek the advice of an optometrist before you polycarbonate! S dive in and take a look at the pros and cons your eye comfortable to wear lenses... Reputable wholesalers polycarbonate, however: polycarbonate lens optical quality be talking specifically about plastic polycarbonate! Pair of prescription glasses would eliminate that strain could be done to grind the edges a little thicker... “ accept ”, you pay for in how the lens could upgrade to polycarbonate already Significantly Inferior glass... The high index can tell you I have 4 mo old poly lenses! S eyewear the benefits of the best benefits of the lens transfers light into eye. Which are a couple milimeters thicker and $ 10 less on their lenses aberration aka. The benefit of safety and children ’ s look at the end of world War II in,. The light moves through that material you may notice the weight of your glasses by feeling pressure on the pads...