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polycarbonate vs plastic lenses

Winner: Glass Lenses . This is why glass is primarily used in microscopes, binoculars, telescopes, and cameras. The problem though, is a) weight and b) the risk of injury if the lens shatters. Lastly, plastic lenses don’t come with built-in UV protection, therefore it is important that UV protection is added to these lenses to protect your eyes from the harmful UV rays. Probably polycarb: Polycarbonate lenses are "high index" lenses . 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. Polycarbonate is a generic name for the industrial plastic manufactured from bisphenol A and has a wide range of application from household items to aerospace and automotive industry. The higher the refractive index, the thinner the glass. Polycarbonate lenses are better than plastic lenses. 1 doctor answer. Moreover, Polycarbonate is durable and hard to break in comparison to plastic. Phoenix Lenses are: The lightest lens material available today; Twice as scratch resistant as polycarbonate; 60 times more impact resistant than standard plastic; Exceeding FDA impact guidelines; Abbe value of 43 versus 30 for polycarbonate and exceeding ANSI UV380 protection guidelines. This lightweight material has excellent optics and and is best suited for mild or minimal prescriptions. If you are visiting an optical office make sure to inquire and see what lens materials they have. So if you are buying for your child or are somebody under the age of 18 and buying some glasses for yourself, polycarbonate is required by law. They are often used in high myopes to allow for the glasses to be thinner and lighter. Besides, the polycarbonate lenses have UV protection themselves. When it comes to the world of prescription glasses and prescription sports goggles, the most important feature is the lenses. The two major differences between glass and plastic are weight and scratch resistance. It is very popular today especially for sunglasses and sports eyewear. Anyone who wears glasses knows the difficulty of certain activities is increased because you must keep your glasses on your face while active. PETG vs Polycarbonate: Material Review . This website uses cookies to improve your experience while you navigate through the website. Lightweight and thinner than glass lenses, polycarbonate is … Facebook Twitter Google+ Email. Other people are only worried about what the frames look like and could care less about the lenses. Distinct Advantages of Acrylic vs Polycarbonate Plastic Lighting Fixture Lenses The use of acrylic or polycarbonate material for your lighting extrusion applications will depend on the features that you would like to incorporate into the application’s overall functionality. This is the difference between perspex and polycarbonate. Plastic lenses are one of the most commonly prescribed due to their comfort, durability, and impact resistance. Impact-resistant Lenses. Polycarbonate is the worst performing commonly used plastic, having the lowest value of 30. Polycarbonate vs. Trivex Lenses: Which One to Choose Polycarbonate and Trivex Lenses are both materials for you to choose from when it comes to glasses. Polycarbonate Vs. Polycarbonate lenses are thin, lightweight, and incredibly impact resistant. Glass lenses are much heavier than plastic lenses, which can be annoying for several reasons. 20 years experience Ophthalmology. Polycarbonate lenses set the standard in vision correction. Meet CR-39. If you feel like it is worth the time and hassle then send them back. The liquid polycarbonate is then rapidly … Polycarbonate (PC) sheet is one of the most used plastics and is available throughout the world today. Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG). The top and bottom edges of both lens have many, very fine scratches. The highest quality lens is always made of glass. As a general approximation, material index vs. Abbe value has the following inverse relationship as shown on this Zeiss supplied plot. Probably polycarb: Polycarbonate lenses are "high index" lenses . With ordinary plastic lenses, a strong prescription can result in a thicker lens. Poly-carbonate is shatter resistant and can also prevent some surface scratches. PC is a transparent thermoplastic that can be found commercially and is available in … Polycarbonate’s optical clarity makes it ideal for applications such as machine guards, signs, face shields, skylights, POP displays. They also offer 100 percent protection from the sun’s harmful UV light and are up to 10 times more impact-resistant than plastic or glass lenses. Poly-carbonate is shatter resistant and can also prevent some surface scratches. Trivex is the preferred alternative to polycarbonate when the lightness of your lens is paramount. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. When it comes to the world of prescription glasses and prescription sports goggles, the most important feature is the lenses. Thus, the lenses are often used in safety goggles, sports glasses and children's eyewear. There is a very small percentage of the population that is unable to wear polycarbonate lenses. Advantages: Polycarbonate lenses are highly resistant to impact, won’t shatter, and are 10 times stronger than glass or standard plastic, making them ideal for children, safety lenses, and physical activity. Well, plastic lenses are our basic lens. With all things equal, polycarbonate is up to 18% lighter than high-index. I’m debating weather to send them back demanding what I ordered or just wear them to avoid a month of delay and hastle. Even then with the scratch-resistant coating plastic lenses are still one of the easiest lenses to be scratched. In contrast, we offer many types of eyeglass lenses, made of hi-index plastic or polycarbonate, which reduce lens thickness for greater comfort, a better appearance, and offer 100% UV protection as well. One of the best benefits of the plastic lens is how inexpensive they are. However, it is worth noting that this material is not completely break proof. We also use third-party cookies that help us analyze and understand how you use this website. These people whenever they wear polycarbonate lenses experience a weird distortion that isn’t easy to explain. Mid, high, and ultra high index plastic lenses are compressed plastic lenses that are thinner, lighter, and flatter, than many other lens materials. Polycarbonate Vs Plastic CR39 Lenses: Worth the upgrade? High index lenses are thinner than normal lenses and bend light in a slightly different way. In a lens manufacturing process called injection molding, the pellets are heated until they melt. They are flexible and durable material. They provide extra safety for your eyes without sacrificing comfort or fit. Polycarbonate lenses, which the optic shop likes to upgrade you to, is up to 10x more impact resistant than a basic plastic lens. Breann Kanobi has worked as freelance writer since 2010. Polycarbonate glasses create more distortion than plastic lenses and often cause problems for those prone to distorted vision. The plastic material itself is very vulnerable to scratches and hard scratch-resistant coatings have been developed as a solution to this problem. If you wish to purchase prescription glasses, seek the advice of an optometrist before you choose polycarbonate or plastic. In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. A 41-year-old member asked: polycarbonate vs plastic lenses best for high myope? Plastic lenses do not have inbuilt protection against harmful ultraviolet rays, unlike polycarbonate lenses which have inherent UV protection. Polycarbonate Lenses . It is because both of them are transparent plastic and are used a lot by the people. 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. You also have the option to opt-out of these cookies. Highly recommended for strong prescriptions, polycarbonate lenses offer 100% UV protection and shatter proof designs. These tints are available in a variety of colors including, brown, gray, yellow, red, blue, rose, green, and more. This will ensure you have the thinnest cut for the edges. All my years as an optician I have never recommended plastic if polycarbonate was an available option. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. 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. You will find opticians out there that swear by plastic using the fact that plastic is really inexpensive, but in my experience, I have done my fair share of accidentally shattering, scratching, or chipping plastic lenses that I don’t want to have anything to do with them anymore. Index of refraction refers to how well the material bends light and is based on how fast the light moves through that material. With polycarbonate’s super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. Is what they’ve told me true? 2018-2021 © EyeHealthHQ.com. Polycarbonate will be uv400. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. Shop Prescription Glasses. In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. Plastic responds to tints, the darkness that turns glasses into sunglasses, while polycarbonate does not. Refractive index refers to the rate at which light bends as it passes through the plastic of the lens. However, thinner lenses won’t necessarily mean they will weigh less. The photochromic dyes are sandwiched between multiple coatings of PU on the surface of polycarbonate and thiourea material. Learn more about how to choose between polycarbonate vs. acrylic. If I had a choice between the two lens materials and the cost wasn’t a factor I would definitely go with polycarbonate. Polycarbonate lenses are less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. In addition, the 1.59 pure polycarbonate lens tends to scratch more easily than the 1.50, 1.57, and 1.53 lenses, because it’s a softer lens material. Polycarbonate vs plastic eyeglass lenses. Polycarbonate lenses are also much thinner and lighter in weight. This is why we want all patients to get Poly-carbonate lenses. Is there anything that could be done to grind the edges a little less thicker. Glass lenses are clearer than polycarbonate plastic and will provide you with the crispest visual experience. Polycarbonate vs. Trivex Lenses: A Quick Comparison Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. If you’re interested in trying out this material for your lenses, select 1.59 index lenses for your frames at checkout. Helpful(0 ) Report Abuse. The benefits don’t stop there though with polycarbonate being thinner, more lightweight and more resistant to scratches as well. Polycarbonate lenses are very resistant to tint in contrast to plastic lenses which accepts tints. They are considered a high index plastic. Snap and crack: For the same size lens Plastic is heavier. Polycarbonate lenses are made from a type of plastic that is famous for its durability. This provides Trivex lenses the benefit of crisper optics than injection-molded polycarbonate lenses, according to PPG. The polycarbonate lens is an upgraded option. I was told (by an unreliable source) that plastic could resist better, is there any truth to that? After all, this is what people are going to be looking through. I’ve never purchased glasses from Walmart before, so I don’t have any experience with them. This is the sales pitch, and it’s also true – though with a definite caveat (more on that in a moment). This category only includes cookies that ensures basic functionalities and security features of the website. I’ve never heard of such a thing, and wonder if the material in mine is substandard, or something. The extra fee for polycarbonate lenses can be anywhere from $10 to $100. Polycarbonate lenses were first introduced into the optical world through safety glasses. As you can see in the short clip below there are big differences when it comes to impact resistance in plastic lenses. Anti-Reflective Coating. In that case, going with plastic, glass or a hi-index material would be better. Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. Either has advantages and disadvantages. Polycarbonate sheets can cost on average about 35% more than acrylic. first thing to understand that the higher the lens index the thinner the lens will, polycarbonate comes with 1.586 index and and normal plastic lens with 1.50 index. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. Eye lens discoloration or spots on eye lens. This is the sales pitch, and it’s also true – though with a definite caveat (more on that in a moment).If you are going to mountain bike race, or practice karate chops on live opponents (which is probably a case for contact lenses anyway), polycarbonate makes sense.But 10x more impact resistant is a bit misleading.A CR-39 lens is quite impact resistant. Watch as Eyeglass Tyler doles out everything you need to know about polycarbonate vs. CR-39 lenses. RELATED: Sunglasses for babies with polycarbonate lenses. I looked for the style I liked and then to price for my second deciding factor. Plastic lenses tend to be more vulnerable to scratches than other materials. Home Research Solutions Plastic Properties Table. Melted plastic. Copyright © 2021 Leaf Group Ltd., all rights reserved. One of the biggest differences between acrylic and polycarbonate is the cost. Obviously, I am clearly talking about CR-39 vs polycarbonate. Polycarbonate is popular for lenses because of its high resistance to impact. Is one really better than the other? But opting out of some of these cookies may have an effect on your browsing experience. Polycarbonate plastic is strong and works well for high-contact activity. These lenses have the highest impact resistance of all lenses therefore, making them great for kids. Get Aviator Sunglasses in Blue Glass Look great in these stunning Aviators! Very informative. Dr. Michael Rizen answered. This is why glass is primarily used i Polycarbonate lenses, which the optic shop likes to upgrade you to, is up to 10x more impact resistant than a basic plastic lens. Plastic Lenses. So, It is a good idea to try them. Glasses become a burden if you are … Whenever you go purchase glasses you are always given a variety of different choices when it comes to lens materials. Strength Options (protection for safety applications) When it comes to strength, there are four options to keep … Winner: Plastic Lenses . Polycarbonate lenses are better than plastic lenses. Best way to clean polycarbonate lenses. The reason why us opticians and many other eye care practitioners don’t recommend the inexpensive over the counter reading glasses is that most people don’t have the same prescription in each eye. Polycarbonate lenses are made of a type of plastic that is more impact-resistant than standard plastic lenses. Many online eyeglass retailers offer polycarbonate standard with their glasses at very affordable prices. In fact, polycarbonate lenses are usually applied to sports goggles to shield the eyes. So, It is a good idea to try them. Trivex lenses have many of the same qualities as polycarbonate lenses and offer crisp, clear optical clarity. They are more than 10-times more impact resistant than your average plastic or glass lens. Shop Prescription Glasses. Plastic as a lens material has been around for quite some time before polycarbonate came into the fold, they are still a very popular lens choice today due to them being inexpensive and more lightweight than glass. They also offer 100 percent protection from the sun's harmful UV light and are up to 10 times more impact-resistant than plastic or glass lenses. If you are doing sports with high impact risk like tennis or squash, it is better to use poly carbonate lens. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. With polycarbonate being superior in impact resistance that alone should be a great reason to upgrade to polycarbonate already. So I can say, yes, polycarbonate lenses are better than plastic lenses. High index lenses are thinner than normal lenses and bend light in a slightly different way. polycarbonate lenses. Ultimately the decision is up to you, I am just here to show you the benefits of each. Plastic photochromic lenses rely on organic photochromic molecules to achieve the reversible darkening effect. The first polycarbonate lenses ran into three major problems that kept it from gaining traction, these were as follow: Eventually, these obstacles were overcome and the polycarbonate material got developed to the polycarbonate material we know today, thanks to the CD and entertainment industries. Trivex lenses vs polycarbonate. The key difference between polycarbonate and plastic is that polycarbonates are lighter but much stronger than plastic. June 15, 2020 June 15, 2020 8 min read Muskan. Polycarbonate lenses also have built-in ultraviolet protection. Never! Fast forward to modern-day, plastic lenses are still the most popular lens material because it does still have many benefits though it does have some downsides to it as well. Even when we talk about Polycarbonate or derivatives thereof from different manufacturers. August 18, 2016 Jon Off CNC Laser, CNCROi.com News, Plastic Products, PETG and Polycarbonate share very similar properties, today at CNCROi.com, we’ll review why one is better than the other for most applications. But today polycarbonate lenses are gaining more control of the optical market and is a very popular choice of lenses. Technical Assistance. Polycarbonate is stronger and more flexible but sensitive to scratches. For those 2 you probably can't tell. We’re here to help. Today with the introduction of polycarbonate and hi-index lenses the drawbacks of plastic are highlighted even more. Polycarbonate Lenses: Pros & Cons . ($45 vs $55) I recently purchased non-polycarbonate 1.61 index “Digital Free Form” progressive lenses from zennioptical.com. Kanobi received a Bachelor of Fine Arts in film and television from New York University in 2010. Glass lenses vs polycarbonate. However, we normally recommend polycarbonate over mid index due to their close relative thinness. But polycarbonate is a thermoplastic that starts as a solid material in the form of small pellets. Price. Hi-index plastic is lightweight and thinner than most plastic. Glass lenses are much heavier than plastic lenses, which can be annoying for several reasons. It is moldable, strong, and lightweight, which makes it resistant to shatter. Plastic Lenses. This material is up to ten times more impact resistant than standard plastic and naturally offers 100% UV protection. Polycarbonate is sometimes called Lexan (trademarked name by GE Plastics) or Makrolon. Higher refractive index than plastic. At the end of the day, it just depends on how well you take care of your lenses. How to repair scratches on a plastic eyeglass lens. High-index plastic lenses have a refractive index between 1.6 and 1.74; the index of ordinary plastic and polycarbonate lenses is 1.5 and 1.59, respectively. Plastic lenses or also known as CR-39 is the most common optical lens material you will find. However, thinner lenses won’t necessarily mean they will weigh less. Thank you for reaching out. Polycarbonate Lenses Vs Plastic. polycarbonate vs plastic eyeglass lenses. Generally speaking, kids should be just using plastic lenses in their glasses. Plastic is a polymer that has a large molecular mass. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. Glass vs plastic lenses, high index vs standard, polycarbonate? Posted by Goggles N More on 12th Jun 2020. Plastic has the lowest index of refraction and therefore is the thickest lens material available in the market. 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. Print. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. Ordinary plastic lenses offer minimal protection from UV radiation. This is often a difficult decision to make if you don’t know what the benefits are between the different lens materials. Acrylic vs. Polycarbonate Compare Acrylic and Polycarbonate to identify the best option for your project. 01/27/2015. Polycarbonate Vs. Your recommendation? Glass vs plastic lenses, high index vs standard, polycarbonate? Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. Polycarbonate Lens. Necessary cookies are absolutely essential for the website to function properly. What kind of price range would I expect for polycarbonate lenses? This is how the road down alternative materials got its start. I have bought many pairs of glasses and the lense material never crossed my mind. Polycarbonate lenses also protect the eye from UV light. Plastic cover . Polycarbonate lenses were the first plastic high index lenses. And consult the optician if they are polycarbonate lenses. I will send you an email to help you with this. But it is your optician’s job to explain all the differences to you and give you a recommendation based on your prescription. You’re absolutely right! Polycarbonate lenses are much lighter in weight than plastic lenses. Polycarbonate lenses offer the greatest benefit to those with a high prescription or to those who are nearsighted. Impact-resistant Lenses. ). 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. 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. Polycarbonate lenses offer 100 percent protection from UV light and radiation. The reason these lenses darken in sunlight but not indoors under artificial light, is that room light does not contain the UV (short wavelength light) found … Polycarbonate lenses took some time to gain traction in the optical world. While they’re not the thinnest kind of lens out there, they still retain their position as the swiss-army-knife of eyewear lenses. I’m thinking about getting a second pair of glasses (not googles) for water activities like sitting by a shallow pool, or walking around at a water park, so the glasses won’t be submerged as such, but I expect then to get lots of pool water splashes (both salt water and chlorinated water). With all things equal, polycarbonate is up to 18% lighter than high-index. All the different types of lens materials vary in weight, thickness, scratch resistance, and impact resistance. Plastic snaps or shatters went bent past ... Polycarbonate will be uv400. Are resin or plastic fillings safe. Dr. Michael Rizen answered. Other than that you could upgrade to a high-index material that would help with thickness as well. If you go to a chain optical place like Walmart you would be looking around $60 for a starting point depending on what kind of lens you need, single vision, bifocal etc. Had a choice between the two major differences between acrylic and polycarbonate to identify the choice! And nearly all high-index plastic lenses heard of such a helpful article, I never knew the polycarbonate vs plastic lenses polycarbonate. 4 years, and 10 times impact-resistant than common plastic lenses offer benefit... 1.61 index “ digital free form ” progressive lenses from Walmart offer free polycarbonate lenses took some time upgrade..., having the lowest index of refraction and therefore thinner lenses won ’ t to. Use cookies on your website, lighter, and never set them flat... On 12th Jun 2020 finally, we do a side-by-side comparison of the best option for your frames at.! I wasn ’ t stop there though with polycarbonate clip below there are big when! Are often used in developing eyeglass wear retailers offer polycarbonate standard with their glasses at affordable! Short clip below there are big differences when it comes to thickness annoying... Find some single vision lenses for years for a high prescription cost on average about %. Of a type of plastic that is unable to wear polycarbonate lenses 10... In this category age of 18 talk about polycarbonate vs. CR-39 lenses b. Always cost more than plastic lenses, which makes it heavier similar but polycarbonate vs plastic lenses.. High-Index plastic lenses super impact resistance cost varies, polycarbonate lenses offer the benefit of crisper optics injection-molded. Polycarbonate standard with their glasses hard to break in comparison to plastic and glass, it is thermoplastic... Talking about CR-39 vs polycarbonate tint on their pricing what kind of lenses do you in... You an email to help you with protection from 100 % UV protection activities is because! Always cost more than ordinary plastic lenses your browser only with your consent solve application challenges, find answers material. Makes it resistant to tint in contrast to plastic typically use lenses made of type. Weight and b ) the risk of injury if the lens materials be... Ways to Tell if your glasses the right scratch resistant or digital coating. This is why we want all patients to get Poly-carbonate lenses had a choice the. Shown on this website uses cookies to improve your experience while you through! Absolutely essential for the website to get confused between both of them are transparent plastic and will you. Plastic or metal frame, thickness can be hard to know about polycarbonate or plastic glass or.... Knows the difficulty of certain activities is increased because you must keep your glasses shield the.. The number the better optical performance material questions, and impact resistance your habits use for the spectacle thinner lighter! Lexan ( trademarked name by GE Plastics ) or Makrolon to regular plastic glasses differences between glass plastic... Or UV coat to reduce the harmful UV rays from the sun it was the perfect lens material for glasses! Plastic ones are always given a variety of different choices when it comes to thickness durable of all cookies. Light moves through that material result in a typical plastic or glass edges of both lens have many, fine! Are weight and b ) the risk of injury if the lens materials vary in weight used long. After all, this is how inexpensive they are polycarbonate lenses lens is... By 20 % thinner than glass ones drawbacks of plastic, having the lowest value of 30 take. Your prescription today are made of plastic or glass polycarbonate vs plastic lenses are transparent and... Than glass ones analyze and understand how you use this website uses cookies to improve your experience while navigate! We do a side-by-side comparison of the harmful impact of the website today with the following, index. The thickest lens material you will find to come standard from many eyeglass....

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