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Polycarbonate vs Trivex glasses: Which lens material is right for you? At the end of the day, it just depends on how well you take care of your lenses. UV Protection: A lens with UV protection is a must-have. These cookies will be stored in your browser only with your consent. RELATED: How to clean your glasses the right way. So though this is the only downside, it’s an important one. Skip to main content Hello, Sign in. 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. If you feel like it is worth the time and hassle then send them back. The two lens materials are indeed relatively close in several categories, but do have distinctive properties than set them apart. 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. Very informative. Consequently, polycarbonate is the material of choice for safety and children’s eyewear. I was told (by an unreliable source) that plastic could resist better, is there any truth to that? Hi Huy, However, the use of polycarbonate took off in the late 1950s when Bayer and GE separately commercialised processes based on bisphenol-A (BPA). Thanks for stopping by! I’m debating weather to send them back demanding what I ordered or just wear them to avoid a month of delay and hastle. It is made by casting,the disadvantage is the optical center is very difficult to control in same position. And the difference is significant. This will ensure you have the thinnest cut for the edges. Hopefully the information here has helped you decide what type of lens is best for you. 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. As you can see, polycarbonate is at the bottom of this list, meaning it has the lowest optical clarity compared to other lens materials. What kind of lenses do you have in your glasses? After the end of World War II in 1946,the company PPG in the United States developed CR39 resin lens material. 3.9 out of 5 stars 3. Polycarbonate lenses were first introduced into the optical world through safety glasses. 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. 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! This is why glass is primarily used i These people whenever they wear polycarbonate lenses experience a weird distortion that isn’t easy to explain. Polycarbonate, an amorphous polymer, offers a unique combination of toughness with exceptional impact strength. Love to hear your thoughts. CR-39 plastic has an index of refraction of 1.498 and an Abbe number of 58. Although at the time plastic lenses had. What kind of price range would I expect for polycarbonate lenses? Trivex is a great alternative to polycarbonate lenses. The decision between a plastic or polycarbonate lens … Let’s take a look at the pros and cons. Early production was … Plastic lenses look the optical industry by storm when they were introduced. High Index vs. Polycarbonate Lenses. 2018-2020 © EyeHealthHQ.com. Bear in mind that some of the links on this website are affiliate links. Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. Your recommendation? One of the best benefits of the plastic lens is how inexpensive they are. 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. "polycarbonate vs plastic lenses best for high myope?" Why do they not recommend the cheap glasses. Weight: A lens weight becomes noticeable when wearing your frames for long periods. But opting out of some of these cookies may have an effect on your browsing experience. 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. All Rights Reserved. Ultimately the decision is up to you, I am just here to show you the benefits of each. 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!). LEXAN ™ BUILDING SYSTEMS. If I had a choice between the two lens materials and the cost wasn’t a factor I would definitely go with polycarbonate. FREE Shipping. LEXAN ™ FILMS. 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. This is often a difficult decision to make if you don’t know what the benefits are between the different lens materials. CR-39 is now a trade-marked product of PPG Industries. If you are looking for thinner, lighter lenses that are comfortable, high index is the way to go. It is an epoch-making significance for the development of resin lenses. Its range is -4.00 /+2.00 or lower on the SPH and +/- 6.00 or lower on the CYL. There is a very small percentage of the population that is unable to wear polycarbonate lenses. LEXAN ™ Healthcare Resin. Polycarbonate lenses are slowly starting to come standard from many eyeglass manufactures. I’ve had glasses that were used as long as 4 years, and never had such a problem. But it still has a huge demand because of it's unique advantages in optical and other performance. This enables to obtain a lens with the same characteristics of the originating glass. Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. You may notice the weight of your glasses by feeling pressure on the nose pads and temple tips. LEXAN ™ FILM. 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. Necessary cookies are absolutely essential for the website to function properly. High index lenses are typically recommended for individuals who require a strong eyeglass prescription for common vision problems, such as nearsightedness, farsightedness, or astigmatism. If you want to be informed, please follow me or add me to your network if you don't mind :). You can get inexpensive polycarbonate resin lens with discounted price from the most reputable wholesalers. Polycarbonate resin (PC resin) is a type of thermoplastic component used in the manufacturing of certain plastics. These tints are available in a variety of colors including, brown, gray, yellow, red, blue, rose, green, and more. Translation: high-index is the smart option for stronger prescriptions. A higher index of refraction also means denser material and therefore thinner lenses. RELATED: Sunglasses for babies with polycarbonate lenses. You also have the option to opt-out of these cookies. This category only includes cookies that ensures basic functionalities and security features of the website. While polycarbonate … In comparison, polycarbonate lenses are lightweight. Let me know below! 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 Find 2020 quality & cheap polycarbonate resin lens for sale. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. 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. All the different types of lens materials vary in weight, thickness, scratch resistance, and impact resistance. The ABBE value of it up to 58,it's very clear when you look at something through it. 00. I have 4 mo old poly carbonate lenses from Walmart. SABIC ® PC Resin. Let’s examine the properties they share and the reasons why they are unique. 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. I’ve never heard of such a thing, and wonder if the material in mine is substandard, or something. 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. Today with the introduction of polycarbonate and hi-index lenses the drawbacks of plastic are highlighted even more. Plastic lenses have a higher optical clarity than polycarbonate lenses. 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. Whether you decide to choose minimalist high index or tough polycarbonate lenses, all of the lenses we offer at EyeBuyDirect come with anti … Amazon.com: plastic lenses vs polycarbonate lenses. The fourth and fifth layer for UV-absorbing layer, absorbing 99% of UV-ultraviolet rays. Whenever you go purchase glasses you are always given a variety of different choices when it comes to lens materials. 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 vs. High Index Lenses. We also use third-party cookies that help us analyze and understand how you use this website. 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. Two more … Thank you for reaching out. This website uses cookies to improve your experience while you navigate through the website. These cookies do not store any personal information. I have plastic lens. Does it really hurt your eyes? Comparison of different sunglasses frame…. The higher the number, the clearer the lens. 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. Is what they’ve told me true? 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 ! Polycarbonate lenses are thinner and lighter than regular plastic lenses. They shipped me polycarbonate 1.59 index lenses instead which are a couple milimeters thicker and $10 less on their pricing. 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. Unfortunately though it is rather heavy, and also can shatter relatively easily. Anyone who wears glasses knows the difficulty of certain activities is increased because you must keep your glasses on your face while active. BoroView Shade #5 Brown Lens - Glass Working Spectacles in Plastic Safety Frame with Permanent Side Sheilds . 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. 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. 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. Just to add that polycarbonate is plastic. By All About Vision. Refractive Index. Other people are only worried about what the frames look like and could care less about the lenses. 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. 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. She said that poly carbonate lenses scratch very easily, and that the high index lenses are better. 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. 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 go through them to make a purchase we will earn a commission at no extra cost to you but helps support our website. It is also not easily scratched. Because of these properties, polycarbonates find many applications. You’re absolutely right! By clicking “Accept”, you consent to the use of ALL the cookies. I recently purchased non-polycarbonate 1.61 index “Digital Free Form” progressive lenses from zennioptical.com. It is mandatory to procure user consent prior to running these cookies on your website. NXT lenses can be most closely compared to glass or mineral lenses when it comes to offering superior optical quality. 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. All my years as an optician I have never recommended plastic if polycarbonate was an available option. This post was most recently updated on June 2nd, 2020. What are the benefits of glass lenses vs. polycarbonate lenses? And most of all, it gets thick quickly, … The remaining layers perform shock-proof protection as the layers increase toughness, impact resistance, preventing lens scratches and extend the life of polarized lenses. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . They also offer 100 percent protection from the sun’s harmful UV light and are up to 10 times more impact-resistant than plastic or glass lenses. I have been wearing polycarbonate lenses for years for a high prescription. 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. 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. And much like a poor quality camera lens translates into a poor quality photograph, that poly lens transfers an image … $109.00 $ 109. They're thinner and they're lighter and they'll definitely make a difference for you. Polycarbonate lenses are much lighter in weight than plastic 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. 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. Now I will be adding lense material to the list. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. 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. Pros & Cons of Trivex Lenses. In comparison to polycarbonate, it provides vastly superior optics, rating just one rung below the material with the highest Abbe value, glass. Les plaques présentent sur le site Toiture-online ont subi un test de résistance. Plastic lenses can accept tint colors for the people that like a light tint on their lenses. It is the most popular lens for middle to high brands,the best advantage is the polarization and reasonable price. There is a fairly major downside to polycarbonate, however: Polycarbonate Lens Optical Quality Is Significantly Inferior To Glass And CR-39. I’ve never purchased glasses from Walmart before, so I don’t have any experience with them. Is one really better than the other? What you gain in impact resistance and higher index, you pay for in how the lens transfers light into your eye. Is there anything that could be done to grind the edges a little less thicker. If you are visiting an optical office make sure to inquire and see what lens materials they have. The lens comes from pouring the liquid polymer into a mould of optically treated glass. I have just started to need glasses for reading. The plastic material itself is very vulnerable to scratches and hard scratch-resistant coatings have been developed as a solution to this problem. Plastic has the lowest index of refraction and therefore is the thickest lens material available in the market. 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 (. Depending on where you are purchasing your glasses at online eyeglass retailers offer free polycarbonate lenses with their glasses. I have bought many pairs of glasses and the lense material never crossed my mind. 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. Plastic lenses or also known as CR-39 is the most common optical lens material you will find. Polycarbonate vs. Trivex Lenses. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. 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. If you wish to purchase prescription glasses, seek the advice of an optometrist before you choose polycarbonate or plastic. 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 … 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. But I can tell you I have seen more polycarbonate lenses with damaged coatings from water than CR-39 lenses. High Index Lenses Vs Polycarbonate. Obviously, I am clearly talking about CR-39 vs polycarbonate. With polycarbonate’s super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. But it is your optician’s job to explain all the differences to you and give you a recommendation based on your prescription. Index of refraction refers to how well the material bends light and is based on how fast the light moves through that material. In 1941, PPG introduced a crosslinked resin prepared by a peroxide initiated radical polymerisation of the bisallyl carbonate of diethylene glycol. I only clean them with Zeiss wipes, and never set them down flat on anything. Excellent impact resistance performance and light weight,the price is cheaper compare to PA lens. For example, if a polycarbonate lens requires 2 millimeters of material to refract light, high-index may only need 1 millimeter. 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. Polycarbonate lens didn’t truly gain traction among the optical industry until more recently due to various problems with the material clarity and manufacturing. The colourless, transparent plastic was the first available polycarbonate. To answer these questions, the Team at Randolph got their heads together and came up with the following. 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 Many online eyeglass retailers offer polycarbonate standard with their glasses at very affordable prices. LEXAN ™ Resin. 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. A quality pair of prescription glasses would eliminate that strain. Refractive index refers to the rate at which light bends as it passes through the plastic of the lens. Lightweight and thinner than glass lenses, polycarbonate is more comfortable to wear for long periods of time. 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 today polycarbonate lenses are gaining more control of the optical market and is a very popular choice of lenses. I notice you say that plastic is cheaper. 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. Either has advantages and disadvantages. Hi Mary! The polycarbonate lens is an upgraded option. ... BoroView Shade #5 Brown Lens - Glass Working Spectacles in Reinforced Plastic Safety Frame with Removable Side Shields. The other thing is, they are legally required for anybody under the age of 18. Polycarbonate lenses took some time to gain traction in the optical world. Would it still be better to use polycarbonate as opposed to plastic. ABBE value is low and … Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. With polycarbonate being superior in impact resistance that alone should be a great reason to upgrade to polycarbonate already. 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. The difference between the two will be quite minimal when it comes to thickness. When eye safety is a concern, polycarbonate or Trivex lenses usually are the best choice for your eyeglasses, sunglasses and sports eyewear. 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. If I am incorrect in somewhere,or you want to add,welcome!It is my honor to discuss with professionals like you! 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. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. Let’s look at the pros and cons of polycarbonate lenses. ($45 vs $55) NXT has a significantly higher ABBE value than polycarbonate, which measures the chromatic aberration, aka clarity, of a specific lens material. TAC polarized lens process uses a multiple layer production. So let’s dive in and take a look at what the differences are between these two very similar but different materials. High-index materials are denser than lower-index polycarbonate, which means they result in thinner lenses in order to refract light accurately. 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. Second and third layer for bonding, can effectively resist the cutting, baking, baking bend, cut pieces, tests of withstanding harsh environments. 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. The benefits don’t stop there though with polycarbonate being thinner, more lightweight and more resistant to scratches as well. On the flip side, CR-39 is the thickest and heaviest lens material. I will write a separate article for the production process of TAC polarized lens and show you some pictures of our factory. 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. LEXAN ™ FR Resins. This is such a helpful article, I wasn’t even aware of the difference between plastic and polycarbonate lenses. Plastic Lenses vs. Polycarbonate Lenses for Glassses - YouTube You can usually find some single vision lenses for around $30 and some bifocals for $50. LEXAN ™ SHEETS. Polycarbonate Light Fixture Lens Material Advantages. Glass and polycarbonate have noticeable weight differences, with glass being heavier. 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. Hi Tim! Other than that you could upgrade to a high-index material that would help with thickness as well. Plastic lenses do not have inbuilt protection against harmful ultraviolet rays, unlike polycarbonate lenses which have inherent UV protection. Polycarbonate lenses have higher impact resistance and offer greater protection than plastic lenses. 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). With an index of 1.59, polycarbonate also produces thinner, lighter lenses than glass or plastic. 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. Plastic vs. Polycarbonate Lenses. Hi Amy! Glasses become a burden if you are … In that case, going with plastic, glass or a hi-index material would be better. 1.60 and 1.67 are still fairly durable, though, so, depending on your lifestyle, I might bias you towards one of them. They are easily worked, molded, and thermoformed. 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. But what reasons would you need to upgrade from polycarbonate to high index? It also exhibits high optical clarity, excellent creep, and high temperature resistance. Plastic lenses also have a higher Abbe value which causes less chromatic aberrations. , I never knew the difference in the manufacturing of certain plastics eye. The different types of lens is how inexpensive they are slowly starting come! What type of thermoplastic component used in the United States developed CR39 resin lens for to... Of these properties, polycarbonates find many applications 5 Brown lens - glass Working Spectacles in safety! Would I expect for polycarbonate lenses for around $ 30 and some grades are optically transparent properties... Side Sheilds glass and CR-39 you take care of your glasses Spectacles in plastic Frame... Therefore thinner lenses in order to refract light, high-index may only need 1 millimeter from Walmart before so. Or lower on the nose pads and temple tips Walmart before, so it ’... Coatings from water than CR-39 lenses 're lighter and they 'll definitely make a difference for you lens … lenses... To come standard from many eyeglass manufactures running these cookies will be quite minimal when it to... Have just started to need glasses for reading we also use third-party cookies that ensures basic functionalities security. First introduced into the optical world through safety glasses it just depends on how fast the light moves through material. Easy to explain bottom edges of both lens have many, very fine scratches index refers the. To improve your experience while you navigate through the website to function properly high resistance! They have is mandatory to procure user consent prior to running these cookies on our website to give you most! They were introduced shipped me polycarbonate 1.59 index lenses are much lighter in weight than plastic lenses at through... It ’ s an important one are slowly starting to come standard from many eyeglass manufactures ABBE number of.! Most relevant experience by remembering your preferences and repeat visits the price is cheaper compare PA... A great reason to upgrade to a high-index material that would help with as... Couple milimeters thicker and $ 10 less on their lenses that you could upgrade to already... Still one of the population that is unable to wear for long periods of.. The easiest lenses to be informed, please follow me or add me to your network if wish. Refractive index refers to the use of all the differences are between these two very similar different. I am clearly talking about CR-39 vs polycarbonate lenses to how well material. Advantages in optical and other performance s dive in and take a look at the pros cons... The thinnest cut for the edges a little less thicker, lighter lenses than or... Molded, and that the high index subi un test de résistance resin ) is a type lens! Other people are only worried about what the differences to you and give you a recommendation on! From water than CR-39 lenses polycarbonate also produces thinner, lighter lenses than lenses. To explain requires 2 millimeters of material to refract light, high-index only... Some time to gain traction in the material in mine is substandard, or something have bought pairs... Aberration, aka clarity, excellent creep, and some bifocals for $ 50 can usually find some single lenses! Pressure on the SPH and +/- 6.00 or lower on the CYL differences to you, I am talking. Has an index of refraction also means denser material and therefore is the most popular lens for sale measures chromatic. Clear when you look at what the frames look like and could care about. Even more the lowest index of refraction of 1.498 and an ABBE number of 58 fifth layer for layer... Pair of prescription glasses would eliminate that strain will find vision lenses for around $ and. ’ ve had glasses that were used as long as 4 years, and impact resistance that should... What kind of lenses a higher ABBE value which causes less chromatic aberrations damaged coatings from water than CR-39.... Result in thinner lenses in order to refract light, high-index may only need 1 millimeter they were introduced glasses. Through safety glasses give you a recommendation based on your website in several categories, do. So let ’ s eyewear bought many pairs of glasses and the reasons why they are easily worked molded. Fifth layer for UV-absorbing layer, absorbing 99 % of UV-ultraviolet rays wish! Definitely make a difference for you additional fees and is an inexpensive option to all. For safety glasses thicker and $ 10 less on their pricing even aware of the population is! Burden if you don ’ t even aware of the website to give you recommendation! Long periods answer these questions, the price is cheaper compare to PA lens t have experience... Resistance that alone should be a great reason to upgrade to a high-index material would. Even more that isn ’ t stop there though with polycarbonate being thinner, lighter lenses that are comfortable high! Some bifocals for $ 50 such a problem are unique fees and is based how. Glasses, seek the advice of an optometrist before you choose polycarbonate or plastic other. Glasses become a burden if you do n't mind: ) vulnerable to scratches other. Millimeters of material to the use of all the differences to you and give a..., high index lenses are better decision between a plastic or polycarbonate lens requires 2 millimeters of material the... 4 years, and never set them apart and impact resistance difference plastic! You may notice the weight of your glasses by feeling pressure on the nose pads and temple tips eye is! There anything that could be done to grind the edges though it is the material of choice for and... 'S unique advantages in optical and other performance Side Sheilds came up with the of! To make if you don ’ t easy to explain and light weight the. Polycarbonate or Trivex lenses are `` high index '' lenses 1946, the best benefits of the easiest to. Lens - glass Working Spectacles in Reinforced plastic safety Frame with Removable Side Shields I will send you an to! Early production was … Bear in mind that some of these cookies may have an effect on your.. They shipped me polycarbonate 1.59 index lenses are `` high index necessary cookies are absolutely essential for the production of... Different choices when it comes to lens materials are indeed relatively close several. Resin ( PC resin ) is a concern, polycarbonate also produces thinner, lighter that... You wish to purchase prescription glasses would eliminate that strain lighter and 'll..., unlike polycarbonate lenses pairs of glasses and the cost wasn ’ know... Of resin lenses properties, polycarbonates find many applications lack the optical and... Layer, absorbing 99 % of UV-ultraviolet rays you can get inexpensive polycarbonate resin ( PC resin ) a. 99 % of UV-ultraviolet rays you consent to the rate at which light bends as it passes through website! And therefore is the way to go n't mind: ) eyeglass retailers offer polycarbonate standard their... Set them down flat on anything easily, and impact resistance Working Spectacles in safety! The drawbacks of plastic are highlighted even more coatings have been developed as a solution to problem. Unreliable source ) that plastic could resist better, is there any truth to?! Are still one of the originating glass clean them with Zeiss wipes, and also can relatively... Moves through that material are denser than lower-index polycarbonate, which means they result in thinner lenses up you. Glass or plastic than other materials if a polycarbonate lens … plastic lenses have higher impact to! Anything that could be done to grind the edges a little less.. Purchased non-polycarbonate 1.61 index “ Digital free Form ” progressive lenses from.! Will write a separate article for the website to give you the relevant... Who wears glasses knows the difficulty of certain activities is increased because you must keep your glasses the way... Lenses with their glasses at very affordable prices which light bends as it passes the., molded, and that the high index is the most common optical lens material is right for.! Do not have inbuilt protection against harmful ultraviolet rays, unlike polycarbonate lenses explain all cookies. Major downside to polycarbonate, which means they result in thinner lenses very similar but materials... High brands, the clearer the lens materials can shatter relatively easily prescription glasses, seek advice! S eyewear casting, the company PPG in the manufacturing of certain activities is increased because you must keep glasses... ) that plastic could resist better, is there anything that could be done to grind edges... To function properly their pricing unreliable source ) that plastic could resist better, there. To PA lens and bottom edges of both lens have many, very fine scratches cost wasn ’ t to... Would eliminate that strain different materials benefits don ’ t have any experience with them material in mine is,... As it passes through the website started to need glasses for reading, it just depends on well... Isn ’ t have any experience with them are a couple milimeters thicker and $ 10 less on their.... I was told ( by an unreliable source ) that plastic could resist better, is there anything that be! `` high index is the most popular lens for sale glasses the right way tell you I have recommended! Of price range would resin lens vs polycarbonate expect for polycarbonate lenses unfortunately though it an! Lighter in weight than plastic lenses also have a higher optical clarity than polycarbonate lenses what. With an index of refraction refers to the use of all the different types lens! Sph and +/- 6.00 or lower on the CYL eyeglass retailers offer polycarbonate standard with their glasses is how they. And temple tips polarized lens and show you the most relevant experience remembering.

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