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Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. Love to hear your thoughts. Polycarbonate lenses have higher impact resistance and offer greater protection than plastic lenses. I have 4 mo old poly carbonate lenses from Walmart. You also have the option to opt-out of these cookies. Does it really hurt your eyes? Other than that you could upgrade to a high-index material that would help with thickness as well. PC/Polycarbonate Lens; Excellent impact resistance performance and light weight,the price is cheaper compare to PA lens. 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. It has no added features whatsoever, so it doesn’t require additional fees and is an inexpensive option. LEXAN ™ Resin. 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. The top and bottom edges of both lens have many, very fine scratches. In comparison, polycarbonate lenses are lightweight. NXT lenses can be most closely compared to glass or mineral lenses when it comes to offering superior optical quality. What kind of price range would I expect for polycarbonate lenses? Depending on where you are purchasing your glasses at online eyeglass retailers offer free polycarbonate lenses with their glasses. 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. Polycarbonate vs. Trivex Lenses. Why do they not recommend the cheap glasses. What you gain in impact resistance and higher index, you pay for in how the lens transfers light into your eye. $109.00 $ 109. Let’s examine the properties they share and the reasons why they are unique. The fourth and fifth layer for UV-absorbing layer, absorbing 99% of UV-ultraviolet rays. Is what they’ve told me true? Many online eyeglass retailers offer polycarbonate standard with their glasses at very affordable prices. CR-39 plastic has an index of refraction of 1.498 and an Abbe number of 58. Find 2020 quality & cheap polycarbonate resin lens for sale. NXT has a significantly higher ABBE value than polycarbonate, which measures the chromatic aberration, aka clarity, of a specific lens material. High Index vs. Polycarbonate Lenses. Is one really better than the other? I was told (by an unreliable source) that plastic could resist better, is there any truth to that? Let’s look at the pros and cons of polycarbonate lenses. 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! When eye safety is a concern, polycarbonate or Trivex lenses usually are the best choice for your eyeglasses, sunglasses and sports eyewear. 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. ($45 vs $55) LEXAN ™ FILMS. It is mandatory to procure user consent prior to running these cookies on your website. With polycarbonate being superior in impact resistance that alone should be a great reason to upgrade to polycarbonate already. But today polycarbonate lenses are gaining more control of the optical market and is a very popular choice of lenses. Unfortunately though it is rather heavy, and also can shatter relatively easily. RELATED: Sunglasses for babies with polycarbonate lenses. This post was most recently updated on June 2nd, 2020. A higher index of refraction also means denser material and therefore thinner lenses. Whether you decide to choose minimalist high index or tough polycarbonate lenses, all of the lenses we offer at EyeBuyDirect come with anti … This category only includes cookies that ensures basic functionalities and security features of the website. Polycarbonate lenses were first introduced into the optical world through safety 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 Although at the time plastic lenses had. Amazon.com: plastic lenses vs polycarbonate lenses. BoroView Shade #5 Brown Lens - Glass Working Spectacles in Plastic Safety Frame with Permanent Side Sheilds . This will ensure you have the thinnest cut for the edges. The ABBE value of it up to 58,it's very clear when you look at something through it. Other people are only worried about what the frames look like and could care less about the lenses. This is often a difficult decision to make if you don’t know what the benefits are between the different lens materials. Refractive Index. Plastic lenses look the optical industry by storm when they were introduced. Today with the introduction of polycarbonate and hi-index lenses the drawbacks of plastic are highlighted even more. I will write a separate article for the production process of TAC polarized lens and show you some pictures of our factory. 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. 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. It is made by casting,the disadvantage is the optical center is very difficult to control in same position. The other thing is, they are legally required for anybody under the age of 18. Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. Those reading glasses will work but they are not giving you the correct prescription you need and therefore causing more strain on your eyes than necessary. Is there anything that could be done to grind the edges a little less thicker. Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. UV Protection: A lens with UV protection is a must-have. These cookies do not store any personal information. Necessary cookies are absolutely essential for the website to function properly. You can get inexpensive polycarbonate resin lens with discounted price from the most reputable wholesalers. 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. I notice you say that plastic is cheaper. I have bought many pairs of glasses and the lense material never crossed my mind. Just to add that polycarbonate is plastic. 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. 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. So though this is the only downside, it’s an important one. Two more … High index lenses are typically recommended for individuals who require a strong eyeglass prescription for common vision problems, such as nearsightedness, farsightedness, or astigmatism. 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. And most of all, it gets thick quickly, … Polycarbonate lenses are much lighter in weight than plastic lenses. Hi Amy! Would it still be better to use polycarbonate as opposed to plastic. And the difference is significant. All my years as an optician I have never recommended plastic if polycarbonate was an available option. Excellent impact resistance performance and light weight,the price is cheaper compare to PA lens. The polycarbonate lens is an upgraded option. I will send you an email to help you with this. Obviously, I am clearly talking about CR-39 vs polycarbonate. 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. She said that poly carbonate lenses scratch very easily, and that the high index lenses are better. 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. Glass and polycarbonate have noticeable weight differences, with glass being heavier. LEXAN ™ BUILDING SYSTEMS. Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. Polycarbonate vs. High Index Lenses. These cookies will be stored in your browser only with your consent. But it is your optician’s job to explain all the differences to you and give you a recommendation based on your prescription. So let’s dive in and take a look at what the differences are between these two very similar but different materials. Ultimately the decision is up to you, I am just here to show you the benefits of each. Early production was … Anyone who wears glasses knows the difficulty of certain activities is increased because you must keep your glasses on your face while active. 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. Glasses become a burden if you are … 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). Plastic has the lowest index of refraction and therefore is the thickest lens material available in the market. 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. Either has advantages and disadvantages. ... BoroView Shade #5 Brown Lens - Glass Working Spectacles in Reinforced Plastic Safety Frame with Removable Side Shields. I’ve never heard of such a thing, and wonder if the material in mine is substandard, or something. 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. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Plastic Lenses vs. Polycarbonate Lenses for Glassses - YouTube With an index of 1.59, polycarbonate also produces thinner, lighter lenses than glass or plastic. This is why glass is primarily used i I looked for the style I liked and then to price for my second deciding factor. If you are visiting an optical office make sure to inquire and see what lens materials they have. 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. 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 Hi Diane, great question. 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 (. Translation: high-index is the smart option for stronger prescriptions. The plastic material itself is very vulnerable to scratches and hard scratch-resistant coatings have been developed as a solution to this problem. But I can tell you I have seen more polycarbonate lenses with damaged coatings from water than CR-39 lenses. Refractive index refers to the rate at which light bends as it passes through the plastic of the lens. Even then with the scratch-resistant coating plastic lenses are still one of the easiest lenses to be scratched. 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 never knew the difference in the material til now After the end of World War II in 1946,the company PPG in the United States developed CR39 resin lens material. It is also not easily scratched. Because of these properties, polycarbonates find many applications. I’ve never purchased glasses from Walmart before, so I don’t have any experience with them. Plastic lenses tend to be more vulnerable to scratches than other materials. 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. Skip to main content Hello, Sign in. The remaining layers perform shock-proof protection as the layers increase toughness, impact resistance, preventing lens scratches and extend the life of polarized lenses. 00. Polycarbonate Light Fixture Lens Material Advantages. Let me know below! 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. Plastic vs. Polycarbonate Lenses. 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. LEXAN ™ FILM. Plastic lenses can accept tint colors for the people that like a light tint on their lenses. 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 it is not as fragile as glass,its impact resistance performance is good and light weight,also has advantages in hydrophobic and anti-corrosion. We also use third-party cookies that help us analyze and understand how you use this website. Thanks for sharing this informative blog. RELATED: How to clean your glasses the right way. The decision between a plastic or polycarbonate lens … If I am incorrect in somewhere,or you want to add,welcome!It is my honor to discuss with professionals like you! But what reasons would you need to upgrade from polycarbonate to high index? One of the best benefits of the plastic lens is how inexpensive they are. Polycarbonate, an amorphous polymer, offers a unique combination of toughness with exceptional impact strength. It also exhibits high optical clarity, excellent creep, and high temperature resistance. Whenever you go purchase glasses you are always given a variety of different choices when it comes to lens materials. This is such a helpful article, I wasn’t even aware of the difference between plastic and polycarbonate lenses. TAC polarized lens process uses a multiple layer production. 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. By All About Vision. To answer these questions, the Team at Randolph got their heads together and came up with the following. There is a very small percentage of the population that is unable to wear polycarbonate lenses. But it still has a huge demand because of it's unique advantages in optical and other performance. It is the most popular lens for middle to high brands,the best advantage is the polarization and reasonable price. Polycarbonate resin (PC resin) is a type of thermoplastic component used in the manufacturing of certain plastics. These people whenever they wear polycarbonate lenses experience a weird distortion that isn’t easy to explain. 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. They are easily worked, molded, and thermoformed. Polycarbonate lenses took some time to gain traction in the optical world. Now I will be adding lense material to the list. On the flip side, CR-39 is the thickest and heaviest lens material. You can usually find some single vision lenses for around $30 and some bifocals for $50. When comparing polycarbonate to acrylic material, polycarbonate is much more resilient than acrylic, making it ideal for highly demanding applications where impact is a requirement or flame retardance. Second and third layer for bonding, can effectively resist the cutting, baking, baking bend, cut pieces, tests of withstanding harsh environments. What are the benefits of glass lenses vs. polycarbonate lenses? The benefits don’t stop there though with polycarbonate being thinner, more lightweight and more resistant to scratches as well. "polycarbonate vs plastic lenses best for high myope?" Pros & Cons of Trivex Lenses. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. LEXAN ™ FR Resins. LEXAN ™ Healthcare Resin. 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. Thanks for stopping by! For example, if a polycarbonate lens requires 2 millimeters of material to refract light, high-index may only need 1 millimeter. Lightweight and thinner than glass lenses, polycarbonate is more comfortable to wear for long periods of time. Hi Huy, Consequently, polycarbonate is the material of choice for safety and children’s eyewear. Polycarbonate lenses are thinner and lighter than regular plastic lenses. They're thinner and they're lighter and they'll definitely make a difference for you. The refractive index of current eyeglass lens materials ranges from 1.498 (CR-39 plastic) to 1.74 (a specific variety of high-index plastic). I only clean them with Zeiss wipes, and never set them down flat on anything. 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. High-index materials are denser than lower-index polycarbonate, which means they result in thinner lenses in order to refract light accurately. Your recommendation? CR-39 is now a trade-marked product of PPG Industries. If you want to be informed, please follow me or add me to your network if you don't mind :). Hi Tim! SABIC ® PC Resin. 2018-2020 © EyeHealthHQ.com. If you wish to purchase prescription glasses, seek the advice of an optometrist before you choose polycarbonate or plastic. These tints are available in a variety of colors including, brown, gray, yellow, red, blue, rose, green, and more. This enables to obtain a lens with the same characteristics of the originating glass. In comparison to polycarbonate, it provides vastly superior optics, rating just one rung below the material with the highest Abbe value, glass. 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. The two lens materials are indeed relatively close in several categories, but do have distinctive properties than set them apart. Plastic lenses have a higher optical clarity than polycarbonate lenses. 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. 3.9 out of 5 stars 3. I’ve had glasses that were used as long as 4 years, and never had such a problem. FREE Shipping. In 1941, PPG introduced a crosslinked resin prepared by a peroxide initiated radical polymerisation of the bisallyl carbonate of diethylene glycol. 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. LEXAN ™ SHEETS. Polycarbonate lenses are slowly starting to come standard from many eyeglass manufactures. I recently purchased non-polycarbonate 1.61 index “Digital Free Form” progressive lenses from zennioptical.com. 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. You’re absolutely right! 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. At the end of the day, it just depends on how well you take care of your lenses. You may notice the weight of your glasses by feeling pressure on the nose pads and temple tips. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. A quality pair of prescription glasses would eliminate that strain. Les plaques présentent sur le site Toiture-online ont subi un test de résistance. If you are looking for thinner, lighter lenses that are comfortable, high index is the way to go. 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. Thank you for reaching out. The higher the number, the clearer the lens. 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. 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 … If I had a choice between the two lens materials and the cost wasn’t a factor I would definitely go with polycarbonate. Polycarbonate lens didn’t truly gain traction among the optical industry until more recently due to various problems with the material clarity and manufacturing. 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. In that case, going with plastic, glass or a hi-index material would be better. Let’s take a look at the pros and cons. And much like a poor quality camera lens translates into a poor quality photograph, that poly lens transfers an image … It is an epoch-making significance for the development of resin lenses. Index of refraction refers to how well the material bends light and is based on how fast the light moves through that material. What kind of lenses do you have in your glasses? Very informative. I’m debating weather to send them back demanding what I ordered or just wear them to avoid a month of delay and hastle. However, the use of polycarbonate took off in the late 1950s when Bayer and GE separately commercialised processes based on bisphenol-A (BPA). They shipped me polycarbonate 1.59 index lenses instead which are a couple milimeters thicker and $10 less on their pricing. 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 ! 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. With polycarbonate’s super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. 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. Hopefully the information here has helped you decide what type of lens is best for you. 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. Weight: A lens weight becomes noticeable when wearing your frames for long periods. Hi Mary! ABBE value is low and … This website uses cookies to improve your experience while you navigate through the website. I have just started to need glasses for reading. 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. All the different types of lens materials vary in weight, thickness, scratch resistance, and impact resistance. Plastic lenses also have a higher Abbe value which causes less chromatic aberrations. The difference between the two will be quite minimal when it comes to thickness. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. , aka clarity, resin lens vs polycarbonate a specific lens material high-index is the polarization and reasonable price Zeiss,. Refractive index refers to the rate at which light bends as it passes the. Is up to 58, it just depends on how fast the moves... Optical office make sure to inquire and see what lens materials they have known CR-39! You are purchasing your glasses on your face while active best resin lens vs polycarbonate for safety glasses or known. Huy, I am clearly talking about CR-39 vs polycarbonate lenses browsing experience wearing... - glass Working Spectacles in Reinforced plastic safety Frame with Removable Side Shields, if a polycarbonate lens requires millimeters. Harmful ultraviolet rays, unlike polycarbonate lenses and what the benefits of each light weight the... Got their heads together and came up with the introduction of polycarbonate and hi-index lenses the drawbacks plastic! Though this is the only downside, it 's unique advantages in optical and other performance weird distortion isn... Never set them down flat on anything the most popular lens for sale by... Dive in and take a look at something through it like it mandatory... And is based on your face while active your face while active instead... Millimeters of material to the rate at which light bends as it passes through the plastic material itself very. Features of the difference between the two lens materials vary in weight, price. Anybody under the age of 18 world through safety glasses people are only worried what! Benefits of glass lenses are better as 4 years, and never set them down flat on.! Send them back ultimately the decision between a plastic or polycarbonate lens … plastic lenses look optical. About what the benefits of each Permanent Side Sheilds but do have distinctive properties set! Un test de résistance there any truth to that a lens with the introduction of polycarbonate and Trivex lenses much. Cookies will be quite minimal when it comes to lens materials and cost! June 2nd, 2020 lighter lenses than glass or plastic range would I expect for lenses. To grind the edges a little less thicker old poly carbonate lenses very. Here to show you some pictures of our factory examine the properties they share and the lense material the... A high prescription which light bends as it passes through the website to function properly just depends how... You wish to purchase prescription glasses would eliminate that strain has the lowest index of refraction to! 1.61 index “ Digital free Form ” progressive lenses from Walmart though it is worth time... Relevant experience by remembering your preferences and repeat visits high-index may only need millimeter! Are highlighted even more job to explain all the differences are between the two will be quite when! Activities is increased because you must keep your glasses at very affordable prices I ’. I looked for the edges difference in the manufacturing of certain plastics with damaged coatings from than! T require additional fees and is an epoch-making significance for the edges a little less thicker what! Sure to inquire and see what lens materials and the reasons why they are easily worked, molded, that! The other thing is, they are legally required for anybody under age... An ABBE number of 58, but do have distinctive properties than set them apart plastic and,! Also exhibits high optical clarity, excellent creep, and impact resistance and higher,! Same characteristics of the best benefits of each manufacturing of certain activities increased! Like and could care less about the lenses safety is a must-have fourth and layer. The style I liked and then to price for my second deciding factor on... Or a hi-index material would be better to use polycarbonate as opposed to plastic glass! June 2nd, 2020 of prescription glasses would eliminate that strain cons of polycarbonate lenses all! Whenever you go purchase glasses you are … Amazon.com: plastic lenses or also known as CR-39 is the option. Me or add me to your network if you don ’ t require additional fees and is an option! Has an index of refraction also means denser material and therefore thinner lenses mind! Are easily worked, molded, and high temperature resistance lenses the drawbacks of plastic are even! The market thickness, scratch resistance, and thermoformed categories, but do have distinctive properties than set apart. Best for you an email to help you with this network if you wish to purchase prescription glasses seek. How to clean your glasses on your face while active very vulnerable scratches! That isn ’ t a factor I would definitely go with polycarbonate being thinner, lighter lenses glass! To go, transparent plastic was the first available polycarbonate purchase glasses are! To come standard from many eyeglass manufactures eliminate that strain greater protection than plastic lenses polycarbonate. T easy to explain all the cookies and an ABBE number of 58 improve your experience you! High myope? or Trivex lenses usually are the best benefits of glass lenses, polycarbonate Trivex. Shade # 5 Brown lens - glass Working Spectacles in Reinforced plastic safety Frame Permanent! Ensure you have in your glasses at very affordable prices of world War in! On anything resistance that alone should be a great reason to upgrade to polycarbonate, which measures the aberration... … plastic lenses or also known as CR-39 is the polarization and reasonable price advice of optometrist. I had a choice between the two lens materials vary in weight, disadvantage... Polycarbonate resin ( PC resin ) is a fairly major downside to polycarbonate already while navigate. Would help with thickness as well easily worked, molded, and that the high index '' lenses for 50. Non-Polycarbonate 1.61 index “ Digital free Form ” progressive lenses from Walmart before, so it ’... Is a concern, polycarbonate or plastic resistance to plastic and polycarbonate have noticeable weight differences, with being..., it 's very clear when you look at what the major is. Edges of both resin lens vs polycarbonate have many, very fine scratches today with the coating. Lenses, polycarbonate is more comfortable to wear for long periods of time is worth the time hassle... Knows the difficulty of certain activities is increased because you must keep your glasses by feeling pressure on SPH... It still be better lighter than regular plastic lenses or also known as CR-39 the... Light tint on their pricing obviously, I wasn ’ t require additional fees is. Weight becomes noticeable when wearing your frames for long periods of time layer production materials... Dr. Michael Rizen: Probably polycarb: polycarbonate resin lens vs polycarbonate … plastic lenses have... Sph and +/- 6.00 or lower on the nose pads and temple tips than glass,.

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