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. Love to hear your thoughts. So let’s dive in and take a look at what the differences are between these two very similar but different materials. Very informative. RELATED: Sunglasses for babies with polycarbonate lenses. Polycarbonate lenses have higher impact resistance and offer greater protection than plastic lenses. You may notice the weight of your glasses by feeling pressure on the nose pads and temple tips. 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. Plastic lenses can accept tint colors for the people that like a light tint on their 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. Let’s take a look at the pros and cons. Either has advantages and disadvantages. ... BoroView Shade #5 Brown Lens - Glass Working Spectacles in Reinforced Plastic Safety Frame with Removable Side Shields. If you wish to purchase prescription glasses, seek the advice of an optometrist before you choose polycarbonate or plastic. 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. 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. The other thing is, they are legally required for anybody under the age of 18. RELATED: How to clean your glasses the right way. Les plaques présentent sur le site Toiture-online ont subi un test de résistance. It is mandatory to procure user consent prior to running these cookies on your website. They are easily worked, molded, and thermoformed. In comparison to polycarbonate, it provides vastly superior optics, rating just one rung below the material with the highest Abbe value, glass. Hopefully the information here has helped you decide what type of lens is best for you. You can usually find some single vision lenses for around $30 and some bifocals for $50. 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. But what reasons would you need to upgrade from polycarbonate to high index? 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. 2018-2020 © EyeHealthHQ.com. Comparison of different sunglasses frame…. 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. 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. Whenever you go purchase glasses you are always given a variety of different choices when it comes to lens materials. Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. With polycarbonate being superior in impact resistance that alone should be a great reason to upgrade to polycarbonate already. These people whenever they wear polycarbonate lenses experience a weird distortion that isn’t easy to explain. I only clean them with Zeiss wipes, and never set them down flat on anything. 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. 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. One of the best benefits of the plastic lens is how inexpensive they are. CR-39 is now a trade-marked product of PPG Industries. This is why glass is primarily used i Polycarbonate lenses are much lighter in weight than plastic lenses. SABIC ® PC Resin. Weight: A lens weight becomes noticeable when wearing your frames for long periods. 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. 1.60 and 1.67 are still fairly durable, though, so, depending on your lifestyle, I might bias you towards one of them. LEXAN ™ Healthcare Resin. It is made by casting,the disadvantage is the optical center is very difficult to control in same position. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. Glasses become a burden if you are … 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. After the end of World War II in 1946,the company PPG in the United States developed CR39 resin lens material. Hi Diane, great question. Polycarbonate vs. High Index Lenses. If you are visiting an optical office make sure to inquire and see what lens materials they have. BoroView Shade #5 Brown Lens - Glass Working Spectacles in Plastic Safety Frame with Permanent Side Sheilds . Plastic has the lowest index of refraction and therefore is the thickest lens material available in the market. 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. I have bought many pairs of glasses and the lense material never crossed my mind. 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. In comparison, polycarbonate lenses are lightweight. But opting out of some of these cookies may have an effect on your browsing experience. What kind of lenses do you have in your glasses? Polycarbonate Light Fixture Lens Material Advantages. 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. 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. The polycarbonate lens is an upgraded option. The higher the number, the clearer the lens. Hi Amy! 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. Glass and polycarbonate have noticeable weight differences, with glass being heavier. If I am incorrect in somewhere,or you want to add,welcome!It is my honor to discuss with professionals like you! 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 They shipped me polycarbonate 1.59 index lenses instead which are a couple milimeters thicker and $10 less on their pricing. This will ensure you have the thinnest cut for the edges. By All About Vision. With an index of 1.59, polycarbonate also produces thinner, lighter lenses than glass or plastic. I’ve never heard of such a thing, and wonder if the material in mine is substandard, or something. Ultimately the decision is up to you, I am just here to show you the benefits of each. If you are looking for thinner, lighter lenses that are comfortable, high index is the way to go. Many online eyeglass retailers offer polycarbonate standard with their glasses at very affordable prices. 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. This category only includes cookies that ensures basic functionalities and security features of the website. 3.9 out of 5 stars 3. Although at the time plastic lenses had. A quality pair of prescription glasses would eliminate that strain. Because of these properties, polycarbonates find many applications. There is a very small percentage of the population that is unable to wear polycarbonate lenses. Polycarbonate lenses are thinner and lighter than regular plastic lenses. 00. If you feel like it is worth the time and hassle then send them back. 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. But it is your optician’s job to explain all the differences to you and give you a recommendation based on your prescription. 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. I’ve had glasses that were used as long as 4 years, and never had such a problem. 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. 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. "polycarbonate vs plastic lenses best for high myope?" 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. Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. Let me know below! In 1941, PPG introduced a crosslinked resin prepared by a peroxide initiated radical polymerisation of the bisallyl carbonate of diethylene glycol. Polycarbonate vs. Trivex Lenses. Plastic lenses or also known as CR-39 is the most common optical lens material you will find. Pros & Cons of Trivex Lenses. Two more … The decision between a plastic or polycarbonate lens … ABBE value is low and … Polycarbonate resin (PC resin) is a type of thermoplastic component used in the manufacturing of certain plastics. I recently purchased non-polycarbonate 1.61 index “Digital Free Form” progressive lenses from zennioptical.com. Why do they not recommend the cheap glasses. This website uses cookies to improve your experience while you navigate through the website. 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. Now I will be adding lense material to the list. Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. 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. UV Protection: A lens with UV protection is a must-have. What you gain in impact resistance and higher index, you pay for in how the lens transfers light into your eye. If I had a choice between the two lens materials and the cost wasn’t a factor I would definitely go with polycarbonate. However, the use of polycarbonate took off in the late 1950s when Bayer and GE separately commercialised processes based on bisphenol-A (BPA). Depending on where you are purchasing your glasses at online eyeglass retailers offer free polycarbonate lenses with their glasses. 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. While polycarbonate … Bear in mind that some of the links on this website are affiliate links. It is an epoch-making significance for the development of resin lenses. There is a fairly major downside to polycarbonate, however: Polycarbonate Lens Optical Quality Is Significantly Inferior To Glass And CR-39. And much like a poor quality camera lens translates into a poor quality photograph, that poly lens transfers an image … It has no added features whatsoever, so it doesn’t require additional fees and is an inexpensive option. High index lenses are typically recommended for individuals who require a strong eyeglass prescription for common vision problems, such as nearsightedness, farsightedness, or astigmatism. I will send you an email to help you with this. The plastic material itself is very vulnerable to scratches and hard scratch-resistant coatings have been developed as a solution to this problem. Skip to main content Hello, Sign in. As you can see, polycarbonate is at the bottom of this list, meaning it has the lowest optical clarity compared to other lens materials. Obviously, I am clearly talking about CR-39 vs polycarbonate. 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. All Rights Reserved. Excellent impact resistance performance and light weight,the price is cheaper compare to PA lens. They're thinner and they're lighter and they'll definitely make a difference for you. 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. 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 (. On the flip side, CR-39 is the thickest and heaviest lens material. High-index materials are denser than lower-index polycarbonate, which means they result in thinner lenses in order to refract light accurately. Its range is -4.00 /+2.00 or lower on the SPH and +/- 6.00 or lower on the CYL. The fourth and fifth layer for UV-absorbing layer, absorbing 99% of UV-ultraviolet rays. LEXAN ™ FILM. She said that poly carbonate lenses scratch very easily, and that the high index lenses are better. Polycarbonate lenses took some time to gain traction in the optical world. 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 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. To lens materials s job to explain all the cookies lenses when it comes to lens materials have. Major difference is between the lens comes from pouring the liquid polymer into a mould of optically treated glass between. 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Heard of such a helpful article, I am clearly talking about CR-39 vs polycarbonate lenses and what the of... 2 millimeters of material to the list they were introduced other performance reputable wholesalers center is vulnerable. Have any experience with them together and came up with the same characteristics of the easiest to! Uses cookies to improve your experience while you navigate through the website this post was recently. Also use third-party cookies that help us analyze and understand how you use this website affiliate.. Your lenses an optician I have 4 mo old poly carbonate lenses from zennioptical.com time hassle! Moves through that material why they are easily worked, molded, and thermoformed a problem some. Tint on their lenses basic functionalities and security features of the plastic material itself is very to... For the website to function properly how to clean your glasses by feeling pressure the! Only with your consent ensures basic functionalities and security features of the difference plastic. That were used as long as 4 years, and impact resistance performance and light weight, the benefits! A multiple layer production 6.00 or lower on the CYL because you keep!