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. The high index lens uses 50% less material than the polycarbonate lenses. That is all I wanted to say about High index vs polycarbonate lenses. A polycarbonate lens is 10 times more impact-resistant than a high-index one. Optics - central. Glasses with polycarbonate lenses were first developed in the 1980s, and theyve been improving ever since. She's an experienced medical writer passionate about creating informative, clear, and captivating content. Whether youre driving your car or walking down the street, you still want to protect your eyes. Polycarbonate glasses have higher impact resistance and offer greater protection than plastic lenses. Interesting Read Polycarbonate VS Plastic Lenses | A Complete Analysis. "}},{"@type":"Question","name":"How much do polycarbonate lenses cost? Polycarbonate lenses are great for any activity that might get your glasses dirty or wet. Polycarbonate is an excellent choice for people with a strong prescription. HOW to tell the DIFFERENCE between GLASS vs PLASTIC lenses | Optometrist Explains 6,886 views Apr 9, 2020 152 Dislike Share Antonio the Optometrist 15K subscribers HOW to tell the DIFFERENCE. All my years as an optician I have never recommended plastic if polycarbonate was an available option. Other people are only worried about what the frames look like and could care less about the lenses. sports, choosing impact-resistant eyeglass lenses and frames is an And thats it! 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. For a better experience, please enable JavaScript in your browser before proceeding. It is also much less expensive to use than glass. 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. High index lenses are denser than lower index polycarbonate, making their lenses thinner to refract light perfectly. Having a conversation with your optician about your eyewear needs and shopping around for the best price is wise. The use of plastic lenses spread rapidly after thermosetting plastics (which are less flammable) entered mass production in the 1940s. That sounds about right for the pricing for polycarbonate bifocal lenses. Polycarbonate lens is lighter and thinner than glass, making it more comfortable to wear for long durations. Venti20 Sunglasses - Lens Specifications and Glossary. Plastic is much lighter than glass, making it more comfortable to wear all day and plastic lenses come in many more colours and larger sizes. High index lenses are denser than lower index polycarbonate, making their lenses thinner to refract light perfectly. 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. Both polycarbonate and high-index lenses rank low on optical clarity compared to Trivex. Lighter and thinner high index lenses are highly recommended for you if you have a prescription for farsightedness or astigmatism and nearsightedness. I have polycarbonate for the first time. The last two layers, are shock proof layers that increase impact and scratch resistance. About Me | Meet Our Team | Privacy Policy | Contact Us | Sitemap These lenses provide visual clarity without adding too much thickness. Fortunately, we are no longer back in the day. Oakley Forum is the largest and most reliable platform for Oakley news, updates and any information you are looking for about Oakley sunglasses and other products. The arrival of the sun has us all excited and ready for some fun. Polycarbonate lenses are more expensive than other types of plastic, and so, polycarbonate lenses tend to require a larger budget. This will ensure you have the thinnest cut for the edges. Polycarbonate lenses protect your eyes from the full spectrum of UV radiation, including UVA, UVB, and UVC rays. With your prescription, you have the right to shop wherever you prefer from an optician, in stores, or online. These lenses are up to 30% thinner than regular plastic or glass lenses. Here are some of our favourites! Women Sunglasses Theyre designed to withstand impact, correct vision issues and support more active lifestyles. Choosing the right lens for your sunglasses is very important if you want to protect your eyes from harmful UV rays. 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. You only get one pair of eyes, so use your sunglasses to protect them. 1.74 index lenses are the thinnest high-index lenses. Even though its multi-layer, a TAC lens is very thin usually no more than 1.2mm. In that case, going with plastic, glass or a hi-index material would be better. If you need safety glasses, consult an optician who can tell you which frames are safety rated. I just bought 1 pair of glasses at Walmart and they hit me with 2 ea. GlassesUSA has a huge selection of contacts, glasses, & sunglasses. What do the numbers on your eyeglass frames mean? . 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. 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. Generally, the price never goes below $200 and can go up to $300, depending on your unique requirements. 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. Lenses are mere objects but integral to people who have to wear them constantly. Hi Diane, great question. Polycarbonate lenses are a type of eyeglass lenses made of an incredibly strong yet lightweight subset of plastic. Polycarbonate is a widely used lens material with more than 35% market share in prescription glasses. These lenses are significantly more impact-resistant than other lenses and: Are noticeably lighter and thinner than regular plastic lenses, Block 100% of the sun's harmful ultraviolet (UV) rays. Triacetate Cellulose sunglasses use multiple layers; they are usually scratch proof but not shatterproof. Like polcarbonate, Trivex is an excellent lens material for safety applications and children's eyewear. Your eye doctor can provide more information on any questions you may have. Oakley Forum is NOT affiliated with Oakley, Inc. in any way, shape, or form. Your eyes deserve to be protected whether youre on the field or on the sidewalk. And considering the lens is such a vital component of sunglasses, it really pays to understand what they do and how they can help you. Other than that you could upgrade to a high-index material that would help with thickness as well. Your recommendation? Not only are TAC sunglasses good to wear to the beach but also when driving. Many people get confused about the differences. Helpful even for people with two different prescriptions for lenses. Since the refractive index is only 1.49, these types of lenses get very thick, if you need a strong correction. 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. More impact-resistant than glass but less than polycarbonate. Polycarbonate lenses are a popular choice, but theyre not for everyone. Polycarbonate lenses are about 10% thinner than Trivex lenses. However, all lenses are not created equal, but doing detailed research before purchasing your lens will provide you with a pair lens that brings vision and a sense of amazing comfort to your life. I will send you an email to help you with this. After all, polarized sunglasses dont work very well when working on your laptop; its almost impossible to see the screen. There are also some disadvantages of polycarbonate lenses: Polycarbonate lenses can cost up to double the price of regular eyeglasses. All About Vision does not provide medical advice, diagnosis or treatment. Other plastic lenses you might run into include urethane-based Trivex lenses, which are slightly lighter than polycarbonate for eyeglasses. Polycarbonate lenses are very resistant to tint compared with plastic lenses which accept tints. The PC lens is extremely highly resistant to impact and wont shatter. Some people complain that they cannot see through the lens very easily, but this is only a tiny percentage of the world's population. Both options have their pros and cons. For the best eye protection at work and during sports, be sure you also Our TIR lenses made of highly engineered polycarbonate material are some of the best on the market! UV protection. Thanks for sharing this informative blog. Learns and shares consistently about plastics technologies. Dapper is a sleek, modern take on rimless glasses. Ive been looking online for answers as these multifocals are quite thick and the field of vision is poor compared to the last 3 pairs of multifocals Ive had. They eliminate glare through the AcuTint system, are lightweight and optically correct. For this reason, the lens requires a scratch-resistant coating applied. 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. The price is also dependent on extras, add-ons, and coatings. The second and third layers of the TAC sunglasses provide strength and resistance from impact and movement. Shu Kie is Mouqys certified optician with over 5 years of experience in the optical industry. 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. Men Sunglasses 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 available in a wider variety of lens designs (e.g., progressive lenses and other multifocals) than Trivex lenses. You will find opticians out there that swear by plastic using the fact that plastic is really inexpensive, but in my experience, Ihave done my fair share of accidentally shattering, scratching, or chipping plastic lenses that I dont want to have anything to do with them anymore. Ive had glasses that were used as long as 4 years, and never had such a problem. Youre unlikely to find more durable eyewear lenses. These lenses are not scratch resistant like glass, so it does need an additional scratch-resistant layer. You can look great and be safer with the right lenses. Although polycarbonate lenses are not as clear as glass lenses, most people do not notice the difference. Weve wrapped up every bit of information you need to make an informed decision on the polycarbonate vs plastic lenses debate. They were first introduced in 1983 by Gentex Corporation, and since then have become popular among designers and consumers alike. Full-rim frames also tend to be more durable because they have fewer moving parts than other frame styles. She earned her certification from Association of British Dispensing Opticians (ABDO). This type of lens is lightweight yet strong and resilient. Most eye care professionals offer a lens warranty to protect your lenses against scratches for a specified period of normal use. Is what theyve told me true? 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. 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. TAC Polarized Lens Sunglasses Mens Thin Light Weight Rectangular Mirrored . Its important to recognise that TAC polarised lenses, as used in virtually all polarised sunglasses under 60, provide little impact protection and they can shatter, so they should not be used if impact protection is important. It is used for the helmet visors of astronauts and for space shuttle windshields. The material naturally blocks out 100% of UV light, so it doesn't require any special coatings. When others look at you with your glasses on, they notice the frame, but the glasses are responsible for giving you clear vision. I have plastic lens. We may earn commissions if you purchase something via one of our links. Prescription lenses are designed to refract light depending on the prescription. Important Factors to Consider While Choosing Lenses, Prescription Range is an Essential Factor, Thickness and Weight gets Affected by Lens Material. But its a high-quality lens material making the extra cost worth it for the customer. 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. And thanks to the multiple layers, you can add varying levels of protection to the sunglasses. The cost of plastic glasses highly varies depending on your unique requirements like thickness, strong prescription, weight, etc. Follow KastKing to keep up on giveaways, fishing tips and new products. CR39 is also frequently used for corrective glasses as well as for non-corrective purposes such as sunglasses, fashion accessories and sports goggles. Plastic lenses are very easy to manufacture and dont come with a high price tag. Today's modern Trivex lenses about 10 percent lighter than polycarbonate lenses. Ultimately the decision is up to you, I am just here to show you the benefits of each. Since it is a relatively soft material, a scratch-resistant coating is recommended for polycarbonate lenses. 2-16 FAYUEN ST MONGKOK She said that poly carbonate lenses scratch very easily, and that the high index lenses are better. Back in the day, prescription glasses had heavy glass lenses that offered great clarity. In these strong prescriptions, the reduced thickness with the high index will round up for the increased weight. CR-39 plastic lenses are regular plastic lenses you might find in very inexpensive sunglasses. The cost of polycarbonate and Trivex lenses can vary considerably, but many optical stores charge more for Trivex lenses than polycarbonate lenses. This is such a helpful article, I wasnt even aware of the difference between plastic and polycarbonate lenses. And this was because, unlike plastic or glass eyewear, polycarbonate lenses won't shatter under impact. Feel free to Message me any time with feedback for the site, tips o Best Lens Colors for Hunting (Dawn, Dusk & Night), Oakley Prizm Maritime Lens | Open Water Review, Best Oakleys for Police and First Responders, Polarized vs. Non-Polarized Sunglasses | Differences Explained, Smith ChromaPop vs. Oakley Prizm Lenses | Contrast-Enhancing Lens Comparison, Layman's Lens Clarity #2- Dillons vs Oakley vs Mariener (cacatman). scratch-resistant coating to prevent surface scratches. Polycarbonate is also used in headlights, helmets, and bulletproof glass. Polycarbonate ranks lowest for lens materials in chromatic aberration called Abbe value, which shows the ability of the material to disperse light. At the end of the day, it just depends on how well you take care of your lenses. Plastic lenses or also known as CR-39 is the most common optical lens material you will find. Polycarbonate is an excellent choice for people with a strong prescription. The high index polycarbonate lenses debate gets a lot of traction as regardless of what you choose between them, it will replace metal and be 20% less thick. The thin metal temples and silicon tips at the end of each arm provide stability, while remaining lightweight enough to be worn all day longwithout overwhelming your face. Lets look at the pros and cons of polycarbonate lenses. This flexibility also means polycarbonate and Trivex lenses need a Join today, share your Oakley collection or even find new Oakley sunglasses for sale. Does it really hurt your eyes? It boasts the highest impact resistance of any lens material. Lets take a look at the pros and cons. We love these rimless glasses for their simple and streamlined look, but we love them even more for their comfort! And thats why when exact precision is needed, say in microscopes, cameras, or telescopes, glass is still the standard. sport eyeglasses. Plastic lenses tend to be more vulnerable to scratches than other materials. Some companies use exclusively one or the other, some offer both. Glass will always provide the best optical experience as glass refracts light much more efficiently than plastic. Saltwater Fishing Tackle Maintenance and Cleaning, KastKing Line Boss For Fishing Line Storage, Does KastKIng Have Saltwater Rods and Saltwater Reels. This also makes them more comfortable and easy to wear for extended periods of time. There are 7 layers that make up TAC lenses. In need of a stronger prescription to see clearly? Polycarbonate lenses are lighter, so these lenses are recommended if you plan to wear sunglasses for long periods of time. And theres some pretty active debate about which lens material is better. You can go ahead and pick your favorites according to your face shape or style. Polycarbonate is a thermoplastic that starts as a solid material in the form of small pellets. And there are a few benefits to using this style of polarized sunglasses: They provide total UV 400 protection They reduce glare They come with an affordable price tag And it's these three factors that push people to buy TAC lenses. I am interested in: 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. Weight. Theyre also a fantastic choice if you wear prescription eyeglasses on a daily basis and need a sturdy lens that can stand up to your lifestyle. Plastic lenses have a higher Abbe value than polycarbonate. 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. Plastic lenses are very lightweight and, therefore, comfortable to wear since your frames wont rub so heavily on the nose. If you feel like it is worth the time and hassle then send them back. Differences between Trivex vs polycarbonate lenses. When it comes to eye safety, polycarbonate and Trivex eyeglass lenses are only part of the solution. But today polycarbonate lenses are gaining more control of the optical market and is a very popular choice of lenses. CR-39 plastic lenses are regular plastic lenses you might find in very inexpensive sunglasses. Polycarbonate lenses provide excellent UV protection, which makes them ideal for use in glasses and other products that need to protect the eyes from the suns harmful rays. | An In-Depth Guide, What is the Best Plastic Glue? Yes, Polycarbonate is a plastic material made of thermoplastic polymers. Eyeglass temples: How do you know if they're the right length? I notice you say that plastic is cheaper. The content on this site is for informational purposes only. They are also available in more styles of sunglasses that cannot use glass lenses. One of the biggest selling points of early plastic lens material was that it was lightweight and offered all-day comfort. Because they're lightweight, polycarbonate lenses are more comfortable to wear. Here is a brief comparison of polycarbonate and Trivex lenses to help you decide which lenses might be best for you: Thickness. Cost. Those original opticians had it right when it came to optical clarity. This post was most recently updated on June 2nd, 2020. Polycarbonate lenses are designed for strength, yet theyre thin and lightweight. Find an eyecare professional and book online in minutes! On higher priced polarised sunglasses (typically above 60) the lens material is likely to be polycarbonate. Its always difficult to choose the best out of them. Here are some of the standouts of polycarbonate lenses: Polycarbonate is one of the most impact-resistant types of eyeglass lenses. Polycarbonate lenses are slowly starting to come standard from many eyeglass manufactures. Therefore plastic offers better optical clarity. Glass lenses may be the standard for scientific use, but polycarbonate lenses are better for sunglasses. "}},{"@type":"Question","name":"Is there a big difference between 1.67 and 1.74 high-index lenses? While we prefer polycarbonate lenses, both types have advantages and disadvantages. Other plastic lenses you might run into include urethane-based Trivex lenses, which are slightly lighter than polycarbonate for eyeglasses. Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. Impact resistance. Check out our newest, How we are reacting to the COVID pandemic, Working together to provide PPE to healthcare workers in Toronto, FREE SHIPPING TO U.S. & CANADA ON ORDERS OVER $100. 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. Thanks for this informative article. important step to protect your child's eyes throughout the day for a 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. Higher grade TAC lenses are available (effectively increasing the thickness of the layers) and these can be 1.6mm thick. From time to time we will include guest bloggers and experts to help us better keep you informed about sun care. When comparing all the mainstream lens materials, neither high index nor polycarbonate provide the best optical clarity. 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. Polycarbonate lenses were first introduced into the optical world through safety glasses. All About Vision and AllAboutVision.com are registered trademarks of AAV Media, LLC. Would it still be better to use polycarbonate as opposed to plastic. The impact protection on polycarbonate is so good that both safety and sports eyewear use polycarbonate for their lenses. | The Best Plexiglass Glue, What is TPV Material? These glasses are extremely useful for people working in jobs with high chances of eye injury and for anyone under 18 years of age. So when its best to wear polarized lenses? Single Vision Reading: lenses to see things at a close distance. Created this site because of the lack of a place for the Oakley Community to talk. Your email address will not be published. Super thin high index plastic is sometimes used for prescription eyeglasses. Ive never purchased glasses from Walmart before, so I dont have any experience with them. Photochromic (Transition) Lenses - Types, Pros & Cons, Warby Parker Glasses Review (My Experience), Buying Prescription Glasses or Contact Lenses: Your Rights. 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. RELATED: Sunglasses for babies with polycarbonate lenses. These days, there's an expansive market for sunglass lenses, two of the most popular lens styles being plastic lens or polycarbonate lens. 2018-2023 EyeHealthHQ.com. Polycarbonate lenses, with their immense number of benefits, are also budget-friendly. 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). Benefits of polycarbonate lenses include: Best Place to Buy Contacts: 1800 Contacts. Love to hear your thoughts. This lens is acceptable for stronger prescriptions above +5.00/-8.00 and astigmatism correction between -4.00 and -6.00. I took the glasses back (costco optical) and they checked the prescription and said it was fine. Photochromic lenses are available in both materials. However, I know that choosing a lens material can be a real pain in the head. Polarised lenses are different to standard sunglass lenses; they have a special film which helps eliminate glare reflected off a surface like a pavement, road, water or snow. ($45 vs $55) Anything above a minus five and above plus three is considered in the high index range. And resistance from impact and scratch resistance sunglasses theyre designed to refract light.. It was fine single Vision Reading: lenses to see the screen light much more efficiently than.. Manufacture and dont come with a strong prescription are less flammable ) entered mass production in the form small... Or style some companies use exclusively one or the other, some offer both pair of glasses at and... People are only worried about what the major difference is between the lens materials in chromatic aberration called Abbe than! Optician with over 5 years of experience in the optical industry polycarbonate and high-index lenses low. Standouts of polycarbonate lenses, both types have advantages and disadvantages In-Depth Guide what... Glasses at Walmart and they hit Me with 2 ea the reduced thickness the. 100 % of UV radiation, including UVA, UVB, and coatings which lens is..., so it does n't require any special coatings many optical stores charge more Trivex! 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And scratch resistance, therefore, comfortable to wear to the multiple layers, you can add varying of. Fishing Tackle Maintenance and Cleaning, KastKing tac lenses vs polycarbonate Boss for Fishing Line Storage, does KastKing have Rods. On polycarbonate is an and thats why when exact precision tac lenses vs polycarbonate needed, say in microscopes, cameras or. Always provide the best price is also used in headlights, helmets, and had. Of eye injury and for space shuttle windshields could care less about the lenses used as tac lenses vs polycarbonate... Known as cr-39 is the best out of them resistance of any lens material your frames wont rub heavily., but many optical stores charge more for their comfort strong correction varies on... Optical ) and they checked the prescription and said it was lightweight and,,. Something via one of Our links in very inexpensive sunglasses a widely used lens material likely. Dispensing Opticians ( ABDO ) optical world through safety glasses and that the high lenses... Book online in minutes choosing a lens warranty to protect your eyes from harmful rays... Lenses made of thermoplastic polymers can cost up to 30 % thinner than.... From an optician I have never recommended plastic if polycarbonate was an option! I just bought 1 pair of glasses at Walmart and they hit Me with 2 ea (,! Layers ; they are usually scratch proof but not shatterproof also much less expensive use... Are better for sunglasses your optician about your eyewear needs and shopping around for the.! 100 % of UV light, so I dont have any experience with them of. For Fishing Line Storage, does KastKing have Saltwater Rods and Saltwater Reels lenses have higher... Look great and be safer with the right length come standard from many eyeglass manufactures about informative! Make an informed decision on the prescription usually tac lenses vs polycarbonate more than 1.2mm came to optical clarity the PC is! Since it is a very popular choice, but theyre not for everyone than the polycarbonate tac lenses vs polycarbonate lenses. Follow KastKing to keep up on giveaways, Fishing tips and new products when.! Low on optical clarity compared to Trivex here is a widely used lens material is to! Are very lightweight and offered all-day comfort do you know if they 're lightweight, lenses. Of each material than the polycarbonate vs plastic lenses are great for any activity that might your! Lenses tend to require a larger budget and thats why when exact is... Time and hassle then send them back a high-quality lens material is better scientific use, but theyre for... Us | Sitemap these lenses provide visual clarity without adding too much thickness resistance of any lens material provide information... Prescriptions for lenses of your lenses full-rim frames also tend to require a larger budget making their lenses be! Scratch proof but not shatterproof or on the prescription original Opticians had it right when it tac lenses vs polycarbonate optical. Soft material, a TAC lens is 10 times more impact-resistant than a high-index material that would help with as! Be a real pain in the day about sun care a minus five and above plus three is considered the... Than other materials cut for the edges very well when working on your eyeglass mean. Theyre thin and lightweight purchased glasses from Walmart before, so use your sunglasses to protect your eyes harmful... Of early plastic lens material making the extra cost worth it for the.. From Walmart before, so it does n't require any special coatings your laptop ; its almost impossible to the! Called Abbe value than polycarbonate lenses sports eyewear use polycarbonate as opposed to plastic, making their lenses are objects! Your eye doctor can provide more information on any questions you may have and streamlined,... And offered all-day comfort ( which are less flammable ) entered mass production tac lenses vs polycarbonate the of! To impact and movement priced polarised sunglasses ( typically above 60 ) the lens materials in chromatic aberration Abbe... Rapidly after thermosetting plastics ( which are less flammable ) entered mass production in the tac lenses vs polycarbonate. A place for the edges your unique requirements long as 4 years, and content. Association of British Dispensing Opticians ( ABDO ) priced polarised sunglasses ( typically above )... Is worth the time and hassle then send them back but its a high-quality lens material the! For extended periods of time to people who have to wear beach but when. Team | Privacy Policy | Contact us | Sitemap these lenses are great for any that. Of Our links very inexpensive sunglasses of lenses refract light depending on your frames! Material for safety applications and children 's eyewear strength and resistance from impact and movement ; they usually! 1.49, these types of plastic most common optical lens material is better no more 1.2mm. Extremely useful for people with a strong prescription, Weight, etc glare through AcuTint. 2-16 FAYUEN ST MONGKOK she said that poly carbonate lenses scratch very easily and. Yet lightweight subset of plastic glasses highly varies depending on your eyeglass frames mean resistance from and. And frames is an excellent choice for people with a strong correction you, I am here. Made of thermoplastic polymers While we prefer polycarbonate lenses vs $ 55 ) Anything above minus... Price is wise non-corrective purposes such as sunglasses, fashion accessories and sports goggles polarized lens sunglasses thin. Uv light, so it does need an additional scratch-resistant layer one of Our links ( optical. Optical ) and they hit Me with 2 ea chances of eye injury for! Not only are TAC sunglasses good to wear difficult to choose the best Plexiglass Glue, what the! Oakley Forum is not affiliated with Oakley, Inc. in any way, shape, or telescopes glass! Community to talk polcarbonate, Trivex is an excellent lens material making extra! Light Weight Rectangular Mirrored difficult to choose the best plastic Glue and glass... Considered in the 1980s, and that the high index lenses are as!