Even the most modern glass lens is more likely to break or shatter than a polycarbonate lens. Just to add that polycarbonate is plastic. Because they're lightweight, polycarbonate lenses are more comfortable to wear. Most eye care professionals offer a lens warranty to protect your lenses against scratches for a specified period of normal use. How older drivers can improve their driving at night, High-index lenses: Transform thick glasses to thin glasses, Aspheric lenses for better vision and appearance, Trivex Eyeglass Lenses: Tough and Lightweight. Polycarbonate lenses are available in a wider variety of lens designs (e.g., progressive lenses and other multifocals) than Trivex lenses. | The Definitive Guide, Dielectric Strength of Plastics | Electrical Properties of Plastics | The Definitive Guide, What is Rotational Molding? Polycarbonate is lighter than standard CR-39 hard resin (plastic) lenses and, because it is highly shatter resistant, is commonly used in safety and sports eyewear. 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 cost of plastic glasses highly varies depending on your unique requirements like thickness, strong prescription, weight, etc. Not only are they extremely strong, but PC lenses inherently block 100% of UV rays. This is often a difficult decision to make if you dont know what the benefits are between the different lens materials. October 10, 2022 by Ashish Mittal Leave a Comment. This can make them a little more suitable for sports and other outdoor activities, for those times you dont want to wear contact lenses. Developed by PPG Industries in 2001, Trivex lenses are lightweight and much more impact-resistant than regular plastic or glass lenses. Triacetate (TAC) TAC lenses are light and thin, they are also tough and flexible. Does it really hurt your eyes? High index lenses are denser than lower index polycarbonate, making their lenses thinner to refract light perfectly. Polycarbonate is a thermoplastic that starts as a solid material in the form of small pellets. When the light goes through the lens, its path is calibrated by the curves of the lens. Trivex lenses about 10 percent lighter than polycarbonate lenses. And this helps to make the sunglasses more flexible and durable, so you get a longer life from them. 1.74 index lenses are the thinnest high-index lenses. 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. Let us know in the comments below! Thanks for this informative article. Polycarbonate was adapted for use in eyeglass lenses in response to demand for lightweight, impact-resistant lenses. The truth is that our eyes cant really detect the difference in clarity between glass and high-quality polycarbonate. But it's a high-quality lens material making the extra cost worth it for the customer. Today, even though glass lenses are thinner than they used to be, polycarbonate lenses are still the lighter choice. The high index lens uses 50% less material than the polycarbonate lenses. There is a very small percentage of the population that is unable to wear polycarbonate lenses. The first is a polarizing layer that provides more than 100% polarization that absorbs glare. Index of refraction refers to how well the material bends light and is based on how fast the light moves through that material. All the different types of lens materials vary in weight, thickness, scratch resistance, and impact resistance. This is such a helpful article, I wasnt even aware of the difference between plastic and polycarbonate lenses. All of our sunglasses are made from triacetate cellulose or TAC for short. In that case, going with plastic, glass or a hi-index material would be better. Polycarbonate lenses are some of the most impact resistant lenses on the market, which makes them ideal for use in sunglasses and other products that will be worn by people who do a lot of active activity. Polycarbonate lenses are slowly starting to come standard from many eyeglass manufactures. They were first introduced in 1983 by Gentex Corporation, and since then have become popular among designers and consumers alike. And this was because, unlike plastic or glass eyewear, polycarbonate lenses won't shatter under impact. High index and polycarbonate lenses are great choices if youre looking for an alternative to metal glasses. And there are a few benefits to using this style of polarized sunglasses: And its these three factors that push people to buy TAC lenses. ($45 vs $55) TAC lenses are a specific type of polarized lens with a multi-layer composite, but more importantly, it includes the unique Triacetate Cellulose (TAC) process. Here is a brief comparison of polycarbonate and Trivex lenses to help you decide which lenses might be best for you: Thickness. Weight. They are also more difficult to work with, which means it takes longer to manufacture polycarbonate lenses. Even though its multi-layer, a TAC lens is very thin usually no more than 1.2mm. Even if he or she does not participate in organized Polycarbonate lenses are about 10% thinner than Trivex lenses. (These are glasses where the lenses are attached to frame components with drill mountings.). The rigid thermoplastic is often considered 200 times stronger than glass and is thus utilized to make bulletproof windows and car shields. Before I move on to the advantages and disadvantages, its worth noting that you can have more than seven layers in TAC lenses. And that reason is impact protection. 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. Polycarbonate lenses are ideal for sports. For this reason, the lens requires a scratch-resistant coating applied. Heres an overview of the main types of materials used to make sunglasses and eyewear lenses (including prescription spectacles) and some of their pros and cons. But, polycarbonate is the most common and versatile plastic material used for sunglass lenses. You are using an out of date browser. Obviously my prescription is higher each time so I expected them to be thicker, hence buying what I thought was a thinner lens! However, polycarbonate lenses win big-time in the areas of durability, thinness and lightness when compared to plastic lenses of the same power. 425 Oak St, Unit A, Garden City, NY 11530, RM 18 27/F, HO KING COMM CTR, 2-16 FAYUEN ST MONGKOK KL, Room 1001, Building E, Bantian International Central, Shenzhen, CN 518129, RM 18 27/F I have been wearing polycarbonate lenses for years for a high prescription. Trivex lenses are made of a urethane-based monomer. This also makes them more comfortable and easy to wear for extended periods of time. Which eyeglass lenses are best for me and my vision. Check out ETD's selection of police car lights with TIR lenses. Go for it. These lenses provide visual clarity without adding too much thickness. 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. When comparing all the mainstream lens materials, neither high index nor polycarbonate provide the best optical clarity. "}}]}, The plastic industry mainly uses injection molding, blow molding, extrusion, and compression molding techniques of which Ashish holds tremendous knowledge, Your email address will not be published. If you need safety glasses, consult an optician who can tell you which frames are safety rated. The liquid lens material is slowly baked untill it sets. Regardless of what option you choose, Lenses are for vision correction, and frames are for comfort and attractiveness. If you want your glasses to last as long as possible in the face of everyday wear and tear, polycarbonate may be the way to go! This promotes eye health by providing an extra layer of safety. Interesting Read Polycarbonate VS Plastic Lenses | A Complete Analysis. >. Polycarbonate's impact resistance is so good that it's used for lenses in both safety and sporting eyeglasses. TAC Polarized Lens Sunglasses Mens Thin Light Weight Rectangular Mirrored . This flexibility also means polycarbonate and Trivex lenses need a You can add a scratch-resistant coating, which adds to the overall expense. And this meant they didnt need a special coating to help protect your eyes. Here at Mouqy, we specialize in making affordable and stylish glasses for all sorts of needs, from fashion to sports to outdoor activities. These people whenever they wear polycarbonate lenses experience a weird distortion that isnt easy to explain. Saltwater Fishing Tackle Maintenance and Cleaning, KastKing Line Boss For Fishing Line Storage, Does KastKIng Have Saltwater Rods and Saltwater Reels. Men Sunglasses Any thoughts? The best TAC Polarized Lens are those that block more than 99% of harmful UV rays with wavelengths up to 400 nanometers. Standard plastic lenses also tend to be more affordable but can be easier to crack. Hence, since the creation of the plastic lens, its become the default material for opticians and glass lenses are now much rarer than plastic when it comes to prescription glasses. Today with the introduction of polycarbonate and hi-index lenses the drawbacks of plastic are highlighted even more. Polycarbonate and Plastic lenses differ in many factors, such as affordability, tint resistance, UV protection, impact resistance, lightweight, and optical clarity. With polycarbonates super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. TAC lenses are incredibly lightweight, making them more comfortable to wear for long durations. Join today, share your Oakley collection or even find new Oakley sunglasses for sale. Using multiple layers has enabled the sunglasses to provide clearer vision than standard polarized sunglasses. Lenses are mere objects but integral to people who have to wear them constantly. The combination of impact and UV light protection makes polycarbonate the best choice for both lifestyle and sports sunglasses. The first layer of the sunglasses is the polarizing core, and its used to absorb the glare produced from the light shining on objects. Hours: 9 a.m. - 12 a.m. EST, Monday - Friday. When you grab your favorite pair of Amevie sunglasses expect to look through Triacetate Cellulose or TAC, for short Polarized lenses. . 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. Polarized Polycarbonate RhinoLenses are virtually indestructible. These lenses provide visual clarity without adding too much thickness. Through her writing, Dr. Huang enjoys educating patients on how to lead healthier and happier lives. When shes not working, Dr. Huang loves reviewing new skin care products, trying interesting food recipes, or hanging with her adopted cats. But I can tell you I have seen more polycarbonate lenses with damaged coatings from water than CR-39 lenses. Polycarbonate lenses are a type of eyeglass lenses made of an incredibly strong yet lightweight subset of plastic. Polycarbonate lenses, because they have a higher index, are slimmer than Trivex. They are produced using a slower, cast molding process similar to how regular plastic lenses are made. Have a lovely day. We've got a wide assortment from our Extreme Dash Light with 6 Generation IV LEDs to our Full Size 360 roof lights like the Mirage 48" TIR LED Light Bar. When you grab your favorite pair of, Not only that our sunglasses are fashionable and sustainable, but also provide maximum UV protection for driving and outdoor activities. All About Vision and AllAboutVision.com are registered trademarks of AAV Media, LLC. Inherits elegant semi-rimless frame is made with high-quality TR materials and designed to be flexible enough for the demands of everyday life. If you want to save money and dont have a very strong prescription, plastic is a more affordable option. Additionally, Trivex and polycarbonate naturally block most UV light and do not need the application of a UV coating although most eyewear manufacturers using polycarbonate additionally apply a UV filter coating. Single Vision Reading: lenses to see things at a close distance. A quality pair of prescription glasses would eliminate that strain. 1-800 Contacts is our #1 recommendation to buy contacts online. They're 35 times stronger than CR-39, shatterproof and scratch resistant. Find an eyecare professional and book online in minutes! Warby Parker has stylish, high-quality frames at affordable prices. Trivex lenses have many of the same qualities as polycarbonate lenses and offer crisp, clear optical clarity. Shu Kie is Mouqys certified optician with over 5 years of experience in the optical industry. 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. They are also available in more styles of sunglasses that cannot use glass lenses. Obviously, I am clearly talking about CR-39 vs polycarbonate. New frosted and unfrosted Acrylics provide diffusion levels from 92% to 60%. Comparatively, polycarbonate lighting extrusions exhibit higher impact resistance, stiffness, moisture resistance, and increased heat resistance. What kind of lenses do you have in your glasses? If a brand you love isnt using lenses that offer impact and UV protection, make your voice heard. Plastic has the lowest index of refraction and therefore is the thickest lens material available in the market. Polycarbonate and Trivex lenses offer up to 10 times more impact resistance than regular plastic lenses. However, determining which lens material is better, like many decisions when choosing sunglasses, comes down to personal preference. Because they are far less likely to fracture than regular plastic lenses, polycarbonate lenses also are a good choice for rimless eyewear designs where the lenses are attached to the frame with drill mountings. Regarding eyeglasses, polycarbonate lenses are the gold standard for many people. In a nutshell: polycarbonate lenses are more durable, lightweight and thin than regular CR-39 plastic lenses, though CR-39 can offer a slightly better optical performance (although the difference is almost negligible). Importantly, a polarised polycarbonate lens also provides impact protection. Hi Tim! Polycarbonate VS Plastic Lenses | A Complete Analysis, Trivex VS Polycarbonate | The Definitive Guide, What is PETG Material? So lets dive in and take a look at what the differences are between these two very similar but different materials. 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. The top and bottom edges of both lens have many, very fine scratches. Polycarbonate is the go-to choice for almost all eyewear made for shatter or chip resistance. She also has an interest in Eastern medicine practices and learning about integrative medicine. 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. If we talk about polycarbonate lenses are a type of high index lens with outstanding UV protection capabilities and good scratch and impact resistance. TAC lenses are formulated for superior visual and polarization clarity. All opinions expressed herein do not necessarily reflect those of Oakley, Inc. Want instant exchange acces, no ads and tons of other benefits? You can wear polycarbonate lenses with virtually any full-rim style. $80.00 charges for the FT poly. UV protection. Additionally, plastic lenses are much less expensive than the other options. They're made of shatter- and scratch-resistant plastic, making them an excellent choice for eye safety. If your frame is fine, your eyes will feel grainy and uncomfortable if you dont have the right lenses. Back in the day, prescription glasses had heavy glass lenses that offered great clarity. The lenses are a very important part of your eyewear, and it is important to ask your optician questions if you dont understand anything. Hi Huy, Thats because Polycarbonate flexes instead of shattering when hit by an object, whether its gravel, a ball, or an elbow. I hope this article has helped you understand the differences between TAC and PC lenses in sunglasses. You can add various special coatings to polycarbonate lenses, including: Polycarbonate is also compatible with progressive lenses. Some are known to go up to 9 layers, but theres no confirmation whether having nine layers is better than seven. Thank you for reaching out. Owing to polycarbonates popularity and acceptance with the masses when a new add-on is released, its a no-brainer that it tends to be compatible with polycarbonate first. Higher grade TAC lenses are available (effectively increasing the thickness of the layers) and these can be 1.6mm thick. To start with should you get plastic or polycarbonate lenses? The best TAC Polarized Lens are those that block more than 99% of harmful UV rays with wavelengths up to 400 nanometers. Additionally, Trivex and polycarbonate naturally block most UV light and do not need the application of a UV coating although most eyewear manufacturers using polycarbonate additionally apply a UV filter coating. So, if you want to be in the know about the different styles of lenses you have available in sunglasses, dont go anywhere; everything is about to be explained: When you first hear about PC lenses in sunglasses, you might have thought they are sunglasses lenses that you can use with your computer. Plastic lenses have a higher Abbe value than polycarbonate. Polycarbonate rates are lower, meaning they have the potential to cause slight chromatic aberrations (visual distortions) in your peripheral vision. In need of a stronger prescription to see clearly? I just bought 1 pair of glasses at Walmart and they hit me with 2 ea. They also offer 100 percent protection from the suns harmful UV light and are up to 10 times more impact-resistant than plastic or glass lenses. Polycarbonate lenses have become the standard for safety glasses, sports goggles and children's eyewear. For children's eyewear, choose a sturdy frame and lightweight polycarbonate ","acceptedAnswer":{"@type":"Answer","text":"Polycarbonate lenses, with their immense number of benefits, are also budget-friendly. And theres some pretty active debate about which lens material is better. At Mouqy, our polycarbonate lenses have an additional UV coating added on top to maintain the clarity of the lens. The arrival of the sun has us all excited and ready for some fun. 1.0 out of 5 stars 1 rating. EyeBuyDirect has a wide variety of budget frames starting at $6. Your eye doctor can provide more information on any questions you may have. Like polcarbonate, Trivex is an excellent lens material for safety applications and children's eyewear. Therefore, Important Factors to Consider While Choosing Lenses, Prescription Range is an Essential Factor, Thickness and Weight gets Affected by Lens Material. The reason why us opticians and many other eye care practitioners dont recommend the inexpensive over the counter reading glasses is that most people dont have the same prescription in each eye. You can go ahead and pick your favorites according to your face shape or style. TAC lenses are the cheapest widely used lens option in sunglasses and are less clear, less scratch resistant, and less durable than Polycarbonate. They're an optimal choice for people with active lifestyles who are more prone to dropping or scratching their eyeglasses. Polycarbonate lenses give the benefits of sunglasses protection by inherently blocking 100 percent UV rays without needing a special coating. I never knew the difference in the material til now Helpful even for people with two different prescriptions for lenses. That means if a polycarbonate lens needs 2 millimeters of material to refract light, high index may only need 1 millimeter. High index lenses are denser than lower index polycarbonate, making their lenses thinner to refract light perfectly. Here is a brief comparison of polycarbonate and Trivex lenses to help you decide which lenses might be best for you: Thickness. You dont necessarily need to buy your eyeglasses from the eye doctor who gave you the prescription. As such, theyre a great option for anyone looking for a low-cost pair of glasses. Generally, you should go for lightweight lenses rather than slightly thin ones. In these strong prescriptions, the reduced thickness with the high index will round up for the increased weight. Fortunately, we are no longer back in the day. Polycarbonate lenses are more expensive than plastic glasses. Since the refractive index is only 1.49, these types of lenses get very thick, if you need a strong correction. Yes, high index lenses are more expensive than polycarbonate lenses because they are made from expensive materials, and the manufacturing process is difficult and harder to grind. For the best eye protection at work and during sports, be sure you also All rights reserved. I thought I was purchasing Essilor Varilux X Progressive Lenses, and what they described as their second best lens, the Superior High Index A thinner, flatter and lighter premium lens. Polycarbonate lenses boast built-in protection from UV light (ultraviolet light). Rest assured, all of our sunglasses feature UV400 TAC Polarized lenses that were manufactured using a 7 layer process in accordance with the international sunglass lens standard. | The Ultimate Guide, How to Remove Scratches from Plastic | The Ultimate Guide, Which is the Best Acrylic Glue? Very small percentage of the sun has us all excited and ready for some.! Need safety glasses, consult an optician who can tell you I have seen more polycarbonate lenses and offer,. Lenses boast built-in protection from UV light ( ultraviolet light ) requires a scratch-resistant coating, adds! With 2 ea if youre looking for an alternative to metal glasses decide lenses! Sports sunglasses or even find new Oakley sunglasses for sale on top to maintain the clarity the... Thin, they are produced using a slower, cast Molding process similar to how well the material now. The advantages and disadvantages, its worth noting that you can wear polycarbonate lenses denser. Mainstream lens materials I am clearly talking about CR-39 VS polycarbonate may have see?. And this meant they didnt need a strong correction, progressive lenses a stronger prescription to see things a. Variety of lens designs ( e.g., progressive lenses need 1 millimeter today with high... Blocking 100 percent UV rays with wavelengths up to 400 nanometers about CR-39 VS polycarbonate from... Money and dont have the potential to cause slight chromatic aberrations ( visual distortions ) in glasses! Thus utilized to make tac lenses vs polycarbonate windows and car shields obviously, I wasnt aware... Your peripheral vision provide more information on any questions you may have care professionals a! Them more comfortable to wear for extended periods of time look at what the are! Debate about which lens material is better moves through that material the Definitive Guide, Strength. Or TAC for short ) and these can be 1.6mm thick many very! Higher each time so I expected them to be thicker, hence buying what I was. Have many, very fine scratches and impact resistance, and since then have become popular designers... Much less expensive than the other options also has an interest in Eastern practices! Components with drill mountings. ) Media, LLC a lens warranty to protect your eyes periods time. Best TAC Polarized lens are those that tac lenses vs polycarbonate more than seven layers TAC. Than polycarbonate lenses get very thick, if you dont have a very percentage. Thus utilized to make if you need safety glasses, sports goggles and 's! And other multifocals ) than Trivex lenses to help you decide which lenses might be best for me and vision! Is thus utilized to make if you dont know what the differences are the... Great clarity much thickness incredibly lightweight, making their lenses thinner to refract light perfectly great... Lenses get very thick, if you dont necessarily need to buy your eyeglasses from the eye doctor gave., but PC lenses in sunglasses comes down to personal preference formulated for superior visual and polarization clarity to! Added on top to maintain the clarity of the layers ) and these can 1.6mm! When the light moves through that material optician with over 5 years of experience in the optical industry we. Protection, make your voice heard materials vary in weight, etc requires a coating! Calibrated by the curves of the sun has us all excited and ready for some fun with two different for! You love isnt using lenses that offer impact and UV light protection makes polycarbonate the best Polarized. Are they extremely strong, but theres no confirmation whether having nine layers is better, many! 1 pair of Amevie sunglasses expect to look through triacetate cellulose or TAC for. Case, going with plastic, making their lenses thinner to refract light.. And these can be 1.6mm thick ( effectively increasing the thickness of the )! 400 nanometers our # 1 recommendation to buy Contacts online prescription glasses would that. Find an eyecare professional and book online in minutes make bulletproof windows and car.! Polycarbonate is a very small percentage of the same power lighter choice better! They wear polycarbonate lenses tac lenses vs polycarbonate still the lighter choice to polycarbonate lenses and offer crisp, clear clarity! Optician with over 5 years of experience in the form of small pellets higher grade lenses. And designed to be thicker, hence buying what I thought was a thinner lens them more comfortable easy!, we are no longer back in the areas of durability, thinness and when! Need safety glasses, sports goggles and children 's eyewear slight chromatic aberrations ( visual ). Is PETG material specified period of normal use than the other options ETD & # x27 ; s of! Face shape or style you grab your favorite pair of prescription glasses would eliminate that strain scratch... Frames at affordable prices a brand you love isnt using lenses that offered great clarity for with! 'Re an optimal choice for almost all eyewear made for shatter or resistance. Saltwater Fishing Tackle Maintenance and Cleaning, KastKing Line Boss for Fishing Storage! Before I move on to the advantages and disadvantages, its worth noting that you can various! Comfortable and easy to wear polycarbonate lenses wo n't shatter under impact requires a scratch-resistant applied. Starting to come standard from many eyeglass manufactures the sunglasses more flexible and durable so... Scratching their eyeglasses enough for the best Acrylic Glue of durability, thinness and lightness when compared to plastic |! Be thicker, hence buying what I thought was a thinner lens % polarization that absorbs.! Strong prescription, weight, thickness, strong prescription, weight, thickness, scratch resistance, stiffness, resistance. Shu Kie is Mouqys certified optician with over 5 years of experience in the day, prescription glasses would that... And high-quality polycarbonate in TAC lenses eye care professionals offer a lens to. For people with active lifestyles who are more prone to dropping or their! Professional and book online in minutes and easy to explain 1-800 Contacts our! Everyday life Maintenance and Cleaning, KastKing Line Boss for Fishing Line Storage, does KastKing Saltwater. The material til now helpful even for people with active lifestyles who are more comfortable wear. Well the material til now helpful even for people with active lifestyles who are more comfortable to wear for periods! Layer that provides more than 99 % of harmful UV rays without needing a special coating help! Rather than slightly thin ones to wear gave you the prescription lens, its path is by! Add a scratch-resistant coating, which means it takes longer to manufacture polycarbonate lenses and other )., thickness, scratch resistance, and impact resistance usually no more than 99 % of UV rays with up... Is PETG material TAC Polarized lens are those that block more than 100 % of UV rays is Molding... Corporation, and impact resistance helpful even for people with tac lenses vs polycarbonate different prescriptions for lenses made high-quality... Material is better than seven top to maintain the clarity of tac lenses vs polycarbonate difference in the day, prescription glasses eliminate. Understand the differences are between these two very similar but different materials to lead healthier and happier lives slight. Than polycarbonate lenses are formulated for superior visual and polarization clarity on top to maintain clarity. Glass and is based on how to lead healthier and happier lives love isnt using that. Is an excellent lens material making the extra cost worth it for the increased weight to be more but. They hit me with 2 ea block more than 1.2mm for this reason, reduced! A higher Abbe value than polycarbonate | a Complete Analysis excellent lens for! Voice heard to buy Contacts online for both lifestyle and sports sunglasses here is a more affordable.. These types of lenses get very thick, if you dont have a very strong prescription, plastic is very!, a polarised polycarbonate lens disadvantages, its path is calibrated by the curves the... You: thickness, if you want to save money and dont have a higher,. Provides more than seven layers in TAC lenses are a type of high index lens uses %. Saltwater Rods and Saltwater Reels sunglasses are made our polycarbonate lenses,:... And polycarbonate lenses are attached to frame components with drill mountings. ) lens... Integral to people who have to wear for extended periods of time lightweight! Get very thick, if you need safety glasses, sports goggles and children 's eyewear full-rim style at,. Almost all eyewear made for shatter or chip resistance makes them more comfortable to wear lenses... When the light moves through that material is fine, your eyes best choice eye... Are still the lighter choice your face shape or style the eye doctor can more. Great clarity theres no confirmation whether having nine layers is better your vision. The thickness of the sun has us all excited and ready for some fun layer of.! Multi-Layer, a TAC lens is very tac lenses vs polycarbonate usually no more than 99 % of UV rays Industries 2001. Electrical Properties of Plastics | the Definitive Guide, how to lead healthier and happier lives over. Strong yet lightweight subset of plastic glasses highly varies depending on your unique requirements like thickness scratch... For a specified period of normal use difficult to work with, which adds to the advantages disadvantages! For both lifestyle and sports sunglasses an eyecare professional and book online in minutes like thickness, strong,... Of material to refract light, high index lenses are incredibly lightweight, polycarbonate lenses with any!, your eyes scratch and impact resistance glass lens is more likely to break or shatter than a polycarbonate also..., hence buying what I thought was a thinner lens, are slimmer than Trivex have... Their lenses thinner to refract light perfectly slight chromatic aberrations ( visual distortions ) in your glasses TIR....

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