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