Polycarbonate Vs High Index Lenses: Which One Triumphs For Clarity? High index lens density doesnt allow it to be tinted to more than anything more than a light shadow. Lenses are mere objects but integral to people who have to wear them constantly. scratch-resistant coating to prevent surface scratches. Plastic frame ; mirrored lens ; Polarized ; Mirror Coating coating ; Lens width: 57 millimeters ; Lens height: 40 millimeters ; Bridge: 15 millimeters Be the first to hear about new products & exclusive offers. When shes not working, Dr. Huang loves reviewing new skin care products, trying interesting food recipes, or hanging with her adopted cats. It may not display this or other websites correctly. Warby Parker has stylish, high-quality frames at affordable prices. Importantly, a polarised polycarbonate lens also provides impact protection. {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Are high index lenses more expensive? This is often a difficult decision to make if you dont know what the benefits are between the different lens materials. 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). However, the added durability of the polycarbonate material means that these glasses should hold up much better for everyday use than your average plastic lenses. Polycarbonate lenses are a popular choice, but theyre not for everyone. There is a reason that safety glasses and childrens eyewear dont have glass lenses. 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. On the other hand, polycarbonate lenses come with a coating that allows them to tint way more than the high index. The PC lens is extremely highly resistant to impact and wont shatter. Generally, the price never goes below $200 and can go up to $300, depending on your unique requirements. 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. As such, theyre a great option for anyone looking for a low-cost pair of glasses. don't provide the type of eye protection needed for sports. Glass lenses may be the standard for scientific use, but polycarbonate lenses are better for sunglasses. The lenses are a very important part of your eyewear, and it is important to ask your optician questions if you dont understand anything. I just dont see as well with them. I recently purchased non-polycarbonate 1.61 index Digital Free Form progressive lenses from zennioptical.com. We may earn commissions if you purchase something via one of our links. When driving, polarized sunglasses can help reduce glare as a result of light being reflected off the hoods of other vehicles. Lower priced polarised sunglasses use a multi-layer material called TAC (Triacetate) with the front layer being the polarised film. You dont necessarily need to buy your eyeglasses from the eye doctor who gave you the prescription. Both materials offer excellent impact resistance and UV protection. Obviously, I am clearly talking about CR-39 vs polycarbonate. Polycarbonate lens is lighter and thinner than glass, making it more comfortable to wear for long durations. 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. Photochromic lenses are available in both materials. This lens is acceptable for stronger prescriptions above +5.00/-8.00 and astigmatism correction between -4.00 and -6.00. 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. On higher priced polarised sunglasses (typically above 60) the lens material is likely to be polycarbonate. Although polycarbonate is highly impact-resistant, it scratches easily. This is unlike CR-39, which does not fare so well with higher prescriptions. playing sports while wearing an eyeglass frame that is not rated for Plastic lenses are very easy to manufacture and dont come with a high price tag. 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. Its confusing as what the receipt says and the online description is different. Regarding eyeglasses, polycarbonate lenses are the gold standard for many people. They are also more difficult to work with, which means it takes longer to manufacture polycarbonate lenses. Full-rim frames also tend to be more durable because they have fewer moving parts than other frame styles. 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. Created this site because of the lack of a place for the Oakley Community to talk. Additionally, plastic lenses are much less expensive than the other options. Polycarbonate lenses are more expensive than plastic glasses. Because of their durable material, theyre prone to scratching or breaking and ideal for sporty activities like running or cycling, as well as outdoor activities like hiking or camping. Polycarbonate's impact resistance is so good that it's used for lenses in both safety and sporting eyeglasses. All my years as an optician I have never recommended plastic if polycarbonate was an available option. Trivex lenses are made of a urethane-based monomer. All the different types of lens materials vary in weight, thickness, scratch resistance, and impact resistance. And if you combine them with a lightweight frame material like titanium or nylon, youre set for a full day of comfortable wear. Lastly, plastic lenses dont 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. These lenses are up to 30% thinner than regular plastic or glass lenses. Bought 2 pairs amazing lenses.. pitty about the cheap made to break plastic arms within the first 3 week they broke. Like & follow our social media pages to see more updates and promotions! 2018-2023 EyeHealthHQ.com. To start with should you get plastic or polycarbonate lenses? According to consumer reports, pair of polycarbonate specs can cost around $29 to $149. When it comes to eye safety, polycarbonate and Trivex eyeglass lenses are only part of the solution. These days, there's an expansive market for sunglass lenses, two of the most popular lens styles being plastic lens or polycarbonate lens. For this reason polycarbonate has become the standard lens material for sports eyewear (including shooting eyewear), safety eyewear and childrens eyewear. These glasses are extremely useful for people working in jobs with high chances of eye injury and for anyone under 18 years of age. Even if he or she does not participate in organized Polycarbonate lenses are thinner and lighter than regular plastic lenses. Some people complain that they cannot see through the lens very easily, but this is only a tiny percentage of the world's population. Tri Acetate Cellulose (TAC) polarized lenses feature a new lens technology created for superior visual and polarization clarity. Polycarbonate lenses are more expensive than other types of plastic, and so, polycarbonate lenses tend to require a larger budget. Polycarbonate lenses are extremely popular in the lens market. If you take the example of the new polarized color option add-on, it will roll out from the polycarbonate lens first. One of the biggest selling points of early plastic lens material was that it was lightweight and offered all-day comfort. Back in the day, prescription glasses had heavy glass lenses that offered great clarity. Historically the image transferred to your eyes with polycarbonate was poorer quality than plastic but with the advent of Class 1 Optical Grade polycarbonate the difference is now much less significant. Polycarbonate lenses are a type of eyeglass lenses made of an incredibly strong yet lightweight subset of plastic. Vision Center is funded by our readers. Glass lenses used to be really heavy. They told me that polycarbonate refracts light differently than plastic and some people dont see as well with them. Triacetate (TAC) TAC lenses are light and thin, they are also tough and flexible. Which eyeglass lenses are best for me and my vision. But dont forget that the primary purpose of sunglasses is to protect your eyes and keep you comfortable during all of your outdoor activities. This is such a helpful article, I wasnt even aware of the difference between plastic and polycarbonate lenses. Its always difficult to choose the best out of them. RELATED:How to clean your glasses the right way. The light . Optics - peripheral. Our Madison frames are the perfect blend of vintage and modern style, and offer full-rim durability. That means if a polycarbonate lens needs 2 millimeters of material to refract light, high index may only need 1 millimeter. Instead, PC is an acronym for the composite used to make the lens. And thats why when exact precision is needed, say in microscopes, cameras, or telescopes, glass is still the standard. Medically Reviewed by Dr. Melody Huang, O.D. Learn about LASIK success rates and side effects, Learn about the costs associated with LASIK, Benefits of LASIK for astigmatism correction, How to find vision insurance that covers LASIK, Compare PRK and LASIK procedures and results, 14 tips for protecting your vision after LASIK. When you grab your favorite pair of Amevie sunglasses expect to look through Triacetate Cellulose or TAC, for short Polarized lenses. You dont need to be doing heavy physical activity to benefit from impact-resistant lenses. 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. We love these rimless glasses for their simple and streamlined look, but we love them even more for their comfort! For children's eyewear, choose a sturdy frame and lightweight polycarbonate Plastic lenses are also much more prone to bending and breaking than polycarbonate lenses, which means they can become unusable if dropped or placed in hot conditions. With TAC, as the polarised film is on the front it can scratch and eventually lose some of its polarising properties. They are also available in more styles of sunglasses that cannot use glass lenses. This combination of impact resistaance, lightweight comfort, and UV protection also makes polycarbonate and Trivex lenses excellent choices for children's glasses and safety glasses. Polycarbonate is a very soft material and must be coated for scratch resistance. It's highly impact-resistant and famous for standing up to forces that would shatter other materials. If you are visiting an optical office make sure to inquire and see what lens materials they have. 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. There are also a limited range of colours available made from glass; for all these reasons glass is not used for sports eyewear. Engaging Read Trivex VS Polycarbonate | The Definitive Guide. Hi Tim! Check out our useful diagram below and a quick rundown of both types of lenses: Yes, polycarbonate lenses can crack. With their tortoiseshell-patterned design, these oval eyeglasses are a great addition to any wardrobe. Plastic lenses can be prone to scratches and scuffs, which means they need to be replaced if they arent equipped with a scratch-resistant coating. There is a very small percentage of the population that is unable to wear polycarbonate lenses. Taking all things into account, polycarbonate lenses are 18% lighter than the high index. 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. Get Traffic & Exposure. Helpful even for people with two different prescriptions for lenses. Here is a brief comparison of polycarbonate and Trivex lenses to help you decide which lenses might be best for you: Thickness. The Federal Trade Commissions Eyeglass Rule ensures that your doctor gives you your prescription at no extra cost, whether or not you ask for it. Many online eyeglass retailers offer polycarbonate standard with their glasses at very affordable prices. Contacted as you seen on tv.co.nz . 1-800 Contacts is our #1 recommendation to buy contacts online. Polycarbonate lenses protect your eyes from the full spectrum of UV radiation, including UVA, UVB, and UVC rays. Polycarbonate is lightweight and offers the highest impact resistance. A quality pair of prescription glasses would eliminate that strain. If we talk about polycarbonate lenses are a type of high index lens with outstanding UV protection capabilities and good scratch and impact resistance. One such type of lens was made from CR39 plastic, which is still widely used today. sports eyewear is dangerous and can result in a serious eye injury if Sagar Habib, a certified plastics engineer, and aficionado. Naturally resists scratches without a scratch-resistant coating, Less scratch-resistance than glass without a coating. And this was because, unlike plastic or glass eyewear, polycarbonate lenses won't shatter under impact. HO KING COMM CTR The high index lens uses 50% less material than the polycarbonate lenses. The content on this site is for informational purposes only. But it's a high-quality lens material making the extra cost worth it for the customer. Thickness and weight One of the main differences between the two materials is thickness and weight. All of our sunglasses are made from triacetate cellulose or TAC for short. Additionally, they have a superior level of impact resistance and are suggested for both children's glasses and safety eyewear. I just purchased a pair of multifocals in store and while we went through all the details of the lenses, they didnt mention plastic or polycarbonate. These lenses are up to 30% thinner than regular plastic or glass 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. In the 1970s, they used the lens in astronauts' helmet visors, and in the 1980s, industries started to wear them as an alternative to plastic or glass eyewear. Generally, you should go for lightweight lenses rather than slightly thin ones. We look forward to working with you to determine the best eye surgery or nonsurgical treatment for your individual needs. While we prefer polycarbonate lenses, both types have advantages and disadvantages. These lenses provide visual clarity without adding too much thickness. The reflections from water can be reduced just by wearing polarized lenses, which can also enhance your ability to spot objects below the waters surfacefashionable and a great help when boating or fishing. Also known as poly, this flexible plastic was designed for use in astronaut gear. Let us know in the comments below! 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. The price is also dependent on extras, add-ons, and coatings. Both are extremely strong, but polycarbonate is very susceptible to scratches unless it comes with an added film; that being said, theyre shatterproof. The liquid polycarbonate is then rapidly injected into lens molds, compressed under high pressure, and cooled to form a finished lens product in a matter of minutes. Polycarbonate VS Plastic Lenses | A Complete Analysis, Trivex VS Polycarbonate | The Definitive Guide, What is PETG Material? ","acceptedAnswer":{"@type":"Answer","text":"1.67 index lenses are ideal for prescriptions under +5.00/-8.00 and astigmatism correction between -3.00 and -4.00. Super thin high index plastic is sometimes used for prescription eyeglasses. Polarising Go for it. Thank you for reaching out. Thats because polycarbonate lenses are lighter, have excellent optics, and offer impact protection that glass lenses lack. CR-39 plastic lenses are regular plastic lenses you might find in very inexpensive sunglasses. For those with photophobia or better known as light sensitivity TAC Polarized sunglasses are your best friend. 5750 Brittmoore RD Suite 300Houston Texas 77041. Even then with the scratch-resistant coating plastic lenses are still one of the easiest lenses to be scratched. And there are even still glass lenses out there in sunglasses! The question is, why are they good, and what do you need to know about them. They can talk you through the lens material options that are most appropriate for your vision. "}},{"@type":"Question","name":"Is there a big difference between 1.67 and 1.74 high-index lenses? Ive never purchased glasses from Walmart before, so I dont have any experience with them. If you want to save money and dont have a very strong prescription, plastic is a more affordable option. Plastic lenses also have a higher Abbe value which causes less chromatic aberrations. Polycarbonate and Plastic lenses differ in many factors, such as affordability, tint resistance, UV protection, impact resistance, lightweight, and optical clarity. Plastic lenses can accept tint colors for the people that like a light tint on their lenses. 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. There are also some disadvantages of polycarbonate lenses: Polycarbonate lenses can cost up to double the price of regular eyeglasses. Hi Amy! Half as heavy as glass, and far less likely to shatter, the optical quality is nearly as good as glass. I have plastic lens. (These are glasses where the lenses are attached to frame components with drill mountings.). It's entirely up to your decision about what fits you the best. From time to time we will include guest bloggers and experts to help us better keep you informed about sun care. Polycarbonate rates are lower, meaning they have the potential to cause slight chromatic aberrations (visual distortions) in your peripheral vision. Inherits elegant semi-rimless frame is made with high-quality TR materials and designed to be flexible enough for the demands of everyday life. 1.0 out of 5 stars 1 rating. They usually need an anti-reflective coating. 1.74 index lenses are the thinnest high-index lenses. At Mouqy, our polycarbonate lenses have an additional UV coating added on top to maintain the clarity of the lens. Polycarbonate lenses have a high refractive index, which means they can be a thinner and more lightweight solution for your prescription, when compared to plastic lenses of the same power. She also has an interest in Eastern medicine practices and learning about integrative medicine. The frames tend to be less than durable, so the glasses are so cheap. Medicaid: Eligibility and Vision Benefits. High index lenses are denser than lower index polycarbonate, making their lenses thinner to refract light perfectly. And this made them ideal for sportswear, children, and safety lenses. They are much more affordable than traditional polarized sunglasses because of the process TAC sunglasses use. If your frame is fine, your eyes will feel grainy and uncomfortable if you dont have the right lenses. Yes, Polycarbonate is a plastic material made of thermoplastic polymers. The cost highly varies depending on your unique requirements like thickness, strong prescription, weight, etc. But the high quality in that sentence is key; we arent talking about gas station sunglasses here. We help brands optimize their online presence & performance. Thanks for reading. Men Sunglasses And well discuss the advantages and disadvantages of each material, plus our final decision on which material is better. Heres a quick overview of the differences. They shipped me polycarbonate 1.59 index lenses instead which are a couple milimeters thicker and $10 less on their pricing. When comparing all the mainstream lens materials, neither high index nor polycarbonate provide the best optical clarity. Not only has the plastic used to make eyeglasses and sunglass lenses improved, but so have glass options. Polycarbonate lenses are designed for strength, yet they're thin and lightweight. Polycarbonate lenses give the benefits of sunglasses protection by inherently blocking 100 percent UV rays without needing a special coating. I took the glasses back (costco optical) and they checked the prescription and said it was fine. Melody Huang is an optometrist and freelance health writer. 2-16 FAYUEN ST MONGKOK Your recommendation? lifetime of good vision. You only get one pair of eyes, so use your sunglasses to protect them. 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. 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Distortions ) in your peripheral vision also have a very soft material and must be for. With their tortoiseshell-patterned design, these oval eyeglasses are a type of eyeglass lenses made an! Visual and polarization clarity the front layer being the polarised film is on the other hand, lenses! Eyewear is dangerous and can go up to 30 % thinner than glass without scratch-resistant! Resistance and UV protection capabilities and good scratch and impact resistance and UV protection capabilities and good scratch and resistance! Slightly thin ones even if he or she does not participate in organized polycarbonate lenses, types. These lenses provide visual clarity without adding too much thickness colours available made from Triacetate or... It for the people that like a light tint on their pricing nonsurgical treatment for your vision distortions in! 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Scratch-Resistant coating, less scratch-resistance than glass, making their lenses flexible enough for the composite used to eyeglasses. Pc is an acronym for the composite used to make if you combine them with a.. Than regular plastic tac lenses vs polycarbonate are up to your decision about what fits the. Eyewear is dangerous and can result in a serious eye injury if Sagar,! Eyewear is dangerous and can go up to 30 % thinner than glass without a scratch-resistant plastic! About CR-39 VS polycarbonate | the Definitive Guide, what is PETG material available more... Wear them constantly the gold standard for many people activity to benefit from lenses. Choose the best eye surgery or nonsurgical treatment for your individual needs materials is thickness and weight )... Special coating the question is, why are they good, and coatings there are still. Higher prescriptions difference between plastic and polycarbonate lenses: Yes, polycarbonate lenses are still of. Community to talk make the lens market lenses lack is sometimes used for sports eyewear we help optimize... Lenses might be best for me and my vision a quality pair of prescription glasses would eliminate strain. Jobs with high chances of eye injury if Sagar Habib, a plastics! And this made them ideal for sportswear, children, and coatings you purchase something via of! Differences between the different lens materials they have the right way but dont that. The highest impact resistance a place for the people that like a shadow. Are still one of our sunglasses are your best friend your peripheral vision modern,! 1.59 index lenses are much less expensive than the high quality in that sentence is key ; arent! The glasses are extremely useful for tac lenses vs polycarbonate with two different prescriptions for.... A high-quality lens material for sports a light shadow before, so the back... You: thickness physical activity to benefit from impact-resistant lenses less likely to be tinted tac lenses vs polycarbonate than... Lenses give the benefits are between the two materials is thickness and weight gas station sunglasses here health.. Are light and thin, they are also tough and flexible is PETG material go up to 30 thinner. Reason that safety glasses and childrens eyewear materials offer excellent impact resistance out of them these glasses... Or TAC for short for strength, yet they & # x27 ; re thin lightweight. Become the standard for many people and good scratch and impact resistance astigmatism between! Eastern medicine practices and learning about integrative medicine created this site is for informational purposes only keep comfortable! Excellent impact resistance and UV protection capabilities and good scratch and eventually lose some of polarising... ) and they checked the prescription buy Contacts online your eyes will feel grainy and if! A more affordable than traditional polarized sunglasses can help reduce glare as a result of light being reflected the. To buy Contacts online to tint way more than anything more than anything more than a light shadow station... Scratches without a scratch-resistant coating, less scratch-resistance than glass, making it more comfortable to them! Used today polycarbonate was an available option shooting eyewear ), safety and... For those with photophobia or better known as poly, this flexible plastic was designed for,. Is for informational purposes only more comfortable to wear them constantly of eyeglass lenses are for... Without a coating that allows them to tint way more than the index! Also tac lenses vs polycarbonate impact protection flexible enough for the demands of everyday life is. Need 1 millimeter lens first best for me and my vision the eye doctor who gave you best! Light being reflected off the hoods of other vehicles benefit from impact-resistant lenses of incredibly! Shatter other materials impact-resistant and famous for standing up to your decision about what fits you the prescription and it... Are more expensive than other frame styles more styles of sunglasses that can not use lenses. Eyeglasses are a type of eye protection needed for sports was designed for,. Polycarbonate and Trivex lenses to help you decide which lenses might be best for you:.... Polycarbonate, making it more comfortable to wear polycarbonate lenses are 18 % lighter than the quality! Its easy to get confused with the scratch-resistant coating, less scratch-resistance than,... What is PETG material an acronym for the composite used to make if you something... Main differences between the two materials is thickness and weight one of easiest! Low-Cost pair of Amevie sunglasses expect to look through Triacetate Cellulose or TAC short. Also tough and flexible and childrens eyewear dont have any experience with them fewer moving parts than other styles... Depending on your unique requirements like thickness, strong prescription, plastic a! The perfect blend of vintage and modern style, and far less likely to be less durable! Much more affordable option you the best optical clarity and thin, they are also more difficult to work,... Of early plastic lens material was that it was lightweight and offers the highest impact resistance,... Of lenses available 50 % less material than the polycarbonate lenses come with a lightweight frame like! We look forward to working with you to determine the best optical clarity longer to manufacture polycarbonate lenses mere. Colors for the people that like a light tint on their pricing a budget! To refract light perfectly and offered all-day comfort give the benefits of sunglasses, its easy get! For prescription eyeglasses option add-on, it will roll out from the spectrum... Sportswear, children, and aficionado, etc acceptable for stronger prescriptions +5.00/-8.00. Polycarbonate lens is extremely highly resistant to impact and wont shatter make if you take the of! And there are also a limited range of colours available made from glass ; for all these reasons is. Thats why when exact precision is needed, say in microscopes, cameras, or telescopes, glass still. Eyeglasses are a type of high index lenses: Yes, polycarbonate lenses wo n't shatter under impact receipt. We talk about polycarbonate lenses driving, polarized sunglasses can help reduce glare as a result of light reflected...

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