While they’re not the thinnest kind of lens out there, they still retain their position as the swiss-army-knife of eyewear lenses. These cookies will be stored in your browser only with your consent. Other people are only worried about what the frames look like and could care less about the lenses. Probably polycarb: Polycarbonate lenses are "high index" lenses . But it is your optician’s job to explain all the differences to you and give you a recommendation based on your prescription. It’s common for people who wear glasses to simply get stuck in a loop of upgrading to the same exact lens type and style of frames every time they need to update their prescriptions. 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. 2018-2021 © EyeHealthHQ.com. 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). Polycarbonate lenses offer the greatest benefit to those with a high prescription or to those who are nearsighted. I’ve had glasses that were used as long as 4 years, and never had such a problem. ). High index lenses are thinner than normal lenses and bend light in a slightly different way. Shop Prescription Glasses. Dr. Michael Rizen answered. However, it is worth noting that this material is not completely break proof. Though their specific cost varies, polycarbonate lenses almost always cost more than ordinary plastic lenses. 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. Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. I’ve never purchased glasses from Walmart before, so I don’t have any experience with them. 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. Polycarbonate lenses are less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. June 15, 2020 June 15, 2020 8 min read Muskan. Polycarbonate lenses are 10 times more impact-resistant than ordinary plastic lenses. 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. So, It is a good idea to try them. The liquid polycarbonate is then rapidly … Trivex lenses were created by PPG Industries to be a direct competitor to polycarbonate lenses. All my years as an optician I have never recommended plastic if polycarbonate was an available option. You also have the option to opt-out of these cookies. Fun fact: it is also used for things like airplane windscreens and astronaut helmets! Ultimately the decision is up to you, I am just here to show you the benefits of each. After all, this is what people are going to be looking through. The highest quality lens is always made of glass. Kanobi regularly submits content online to Gamer DNA. I was told (by an unreliable source) that plastic could resist better, is there any truth to that? Hi Diane, great question. For glasses lenses, polycarbonate is a great material if you are worried about damage to your eyeglasses. Many online eyeglass retailers offer polycarbonate standard with their glasses at very affordable prices. 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. Trivex lenses have many of the same qualities as polycarbonate lenses and offer crisp, clear optical clarity. 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. Thank you for reaching out. With polycarbonate being superior in impact resistance that alone should be a great reason to upgrade to polycarbonate already. Posted by Goggles N More on 12th Jun 2020. Because of the many advantages to polycarbonate lenses, they generally double in price from glass or plastic lenses. Hi Mary! The reason is because poly carbonate have high impact resistance. 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. Many kinds of lenses are manufactured from polycarbonate, including automotive headlamp lenses, lighting lenses, sunglass / eyeglass lenses , swimming goggles and SCUBA masks, and safety glasses/goggles/visors including visors in sporting helmets/masks and police riot gear (helmet visors, riot shields, etc. Is there anything that could be done to grind the edges a little less thicker. The two major differences between glass and plastic are weight and scratch resistance. Polycarbonate Vs Plastic CR39 Lenses: Worth the upgrade? Polycarbonate vs plastic eyeglass lenses. But I can tell you I have seen more polycarbonate lenses with damaged coatings from water than CR-39 lenses. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. Polycarbonate lenses are better than plastic lenses. 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. Anyone who wears glasses knows the difficulty of certain activities is increased because you must keep your glasses on your face while active. 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. And consult the optician if they are polycarbonate lenses. This is how the road down alternative materials got its start. If you feel like it is worth the time and hassle then send them back. You’re absolutely right! Solve application challenges, find answers to material questions, and get valuable technical advice. Plastic Lenses. The difference between the two will be quite minimal when it comes to thickness. 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. Although at the time plastic lenses had. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. Hi Tim! Mid, high, and ultra high index plastic lenses are compressed plastic lenses that are thinner, lighter, and flatter, than many other lens materials. Like CR-39, polycarbonate has been a popular choice for decades. They are considered a high index plastic. Polycarbonate lenses are thin, lightweight, and incredibly impact resistant. Besides, the polycarbonate lenses have UV protection themselves. This is why we want all patients to get Poly-carbonate lenses. Hi Amy! 20 years experience Ophthalmology. Plastic lenses can accept tint colors for the people that like a light tint on their lenses. They are flexible and durable material. Polycarbonate lenses offer 100 percent protection from UV light and radiation. However, thinner lenses won’t necessarily mean they will weigh less. Several months in the making, finally, we do a side-by-side comparison of the Trivex and polycarbonate lens materials. Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. Does it really hurt your eyes? This post was most recently updated on June 2nd, 2020. Is one really better than the other? They are also one the lightest, thinnest materials used in developing eyeglass wear. Polycarbonate is the worst performing commonly used plastic, having the lowest value of 30. Those reading glasses will work but they are not giving you the correct prescription you need and therefore causing more strain on your eyes than necessary. The extra fee for polycarbonate lenses can be anywhere from $10 to $100. Polycarbonate will be uv400. Let’s take a look at the pros and cons. RELATED: How to clean your glasses the right way. TMEN. 1 doctor answer. However, many plastic lenses use an anti-glare or UV coat to reduce the harmful impact of the sun. 0. I have been wearing polycarbonate lenses for years for a high prescription. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. Hi Huy, If I had a choice between the two lens materials and the cost wasn’t a factor I would definitely go with polycarbonate. With all things equal, polycarbonate is up to 18% lighter than high-index. What are Polycarbonate Lenses? Thus, the lenses are often used in safety goggles, sports glasses and children's eyewear. I notice you say that plastic is cheaper. A quality pair of prescription glasses would eliminate that strain. Home Research Solutions Plastic Properties Table. And polycarbonate lenses are 10 times impact-resistant than common plastic lenses. This will ensure you have the thinnest cut for the edges. 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. 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. When it comes to the world of prescription glasses and prescription sports goggles, the most important feature is the lenses. PETG vs Polycarbonate: Material Review . It is because both of them are transparent plastic and are used a lot by the people. Polycarbonate lenses have higher impact resistance and offer greater protection than plastic lenses. The 1.61 high-index polymer single-vision lens provides a thinner lens for stronger prescriptions than mid- and standard-index optical lenses do. Ordinary plastic lenses offer minimal protection from UV radiation. Polycarbonate Lenses . Polycarbonate Vs. 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. Further, plastic glasses scratch less frequently. 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. If you’re interested in trying out this material for your lenses, select 1.59 index lenses for your frames at checkout. You can usually find some single vision lenses for around $30 and some bifocals for $50. Plastic Lenses. In a lens manufacturing process called injection molding, the pellets are heated until they melt. Is what they’ve told me true? Are those ever any type of polycarbonate or plastic? Polycarbonate lenses were first introduced into the optical world through safety glasses. 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 … This is the sales pitch, and it’s also true – though with a definite caveat (more on that in a moment). Polycarbonate glasses create more distortion than plastic lenses and often cause problems for those prone to distorted vision. I will send you an email to help you with this. There is a very small percentage of the population that is unable to wear polycarbonate lenses. This lightweight material has excellent optics and and is best suited for mild or minimal prescriptions. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. After all, this is what people are going to be looking through. The photochromic dyes are sandwiched between multiple coatings of PU on the surface of polycarbonate and thiourea material. We’re here to help. Other than that you could upgrade to a high-index material that would help with thickness as well. And consult the optician if they are polycarbonate lenses. The other thing is, they are legally required for anybody under the age of 18. 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. Glass lenses are clearer than polycarbonate plastic and will provide you with the crispest visual experience. Let’s look at the pros and cons of polycarbonate lenses. It is very popular today especially for sunglasses and sports eyewear. Best way to clean polycarbonate lenses. Polycarbonate lenses are thinner and lighter than regular plastic lenses. This website uses cookies to improve your experience while you navigate through the website. // Leaf Group Lifestyle, Canada Center for Occupational Health and Safety: Safety Glasses. … Polycarbonate (PC) sheet is one of the most used plastics and is available throughout the world today. 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. Price. Your recommendation? Polycarbonate lenses are also much thinner and lighter in weight. Polycarbonate is a tough, transparent plastic material with outstanding strength, stiffness, and impact resistance. They do have m ... Read More. The polycarbonate lens was actually first introduced in the 1970s for use in safety glasses. Polycarbonate’s optical clarity makes it ideal for applications such as machine guards, signs, face shields, skylights, POP displays. Polycarbonate vs. Trivex Lenses: A Quick Comparison A plethora of choices are usually presented, and it can be hard to know what’s right for you. Polycarbonate is popular for lenses because of its high resistance to impact. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. Copyright © 2021 Leaf Group Ltd., all rights reserved. Most other plastic lenses are made from a cast molding process, where a liquid plastic material is baked for long periods in lens forms, solidifying the liquid plastic to create a lens. Impact Resistance lenses are 10 times more stronger and 50% lighter and 45% thinner compare to regular plastic glasses. Helpful(0 ) Report Abuse. 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. CLARITY Glass lenses are by far optically clearer than polycarbonate lenses. polycarbonate lenses. Plastic lenses are mainly made from polycarbonate and CR-39 plastic material. RELATED: Sunglasses for babies with polycarbonate lenses. Polycarbonate lens didn’t truly gain traction among the optical industry until more recently due to various problems with the material clarity and manufacturing. polycarbonate vs plastic lenses best for high myope? Polycarbonate Vs. Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. How iCare does Eye Care for the Bronx. Also, another significant difference between polycarbonate and plastic is that the polycarbonate can be made thinner than plastic. 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. I only clean them with Zeiss wipes, and never set them down flat on anything. I’m debating weather to send them back demanding what I ordered or just wear them to avoid a month of delay and hastle. The lenses are a very important part of your eyewear, and it is important to ask your optician questions if you don’t understand anything. This provides Trivex lenses the benefit of crisper optics than injection-molded polycarbonate lenses, according to PPG. All Rights Reserved. In that case, going with plastic, glass or a hi-index material would be better. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. Shop Prescription Glasses. 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. Polycarbonate sheets can cost on average about 35% more than acrylic. Well, plastic lenses are our basic lens. 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 in sunlight. Polycarbonate Vs. Plastic responds to tints, the darkness that turns glasses into sunglasses, while polycarbonate does not. Generally speaking, kids should be just using plastic lenses in their glasses. Polycarbonate lenses are made of a type of plastic that is more impact-resistant than standard plastic lenses. She said that poly carbonate lenses scratch very easily, and that the high index lenses are better. As a general approximation, material index vs. Abbe value has the following inverse relationship as shown on this Zeiss supplied plot. Thankfully, polycarbonate and nearly all high-index plastic lenses have 100 … What kind of price range would I expect for polycarbonate lenses? So, It is a good idea to try them. Refractive index refers to the rate at which light bends as it passes through the plastic of the lens. Plastic Lenses. Polycarbonate lenses took some time to gain traction in the optical world. 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. 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. 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. Often, optometrists recommend polycarbonate lenses when safety is an issue. polycarbonate vs plastic eyeglass lenses. Depending on where you are purchasing your glasses at online eyeglass retailers offer free polycarbonate lenses with their glasses. I looked for the style I liked and then to price for my second deciding factor. The higher the refractive index, the thinner the glass. However, we normally recommend polycarbonate over mid index due to their close relative thinness. I never knew the difference in the material til now This is why glass is primarily used i Meet CR-39. Whenever the constructors or any type of furnishing industry look for a translucent plastic, they often choose between the polycarbonate and the Plexiglass sheet. Eye lens discoloration or spots on eye lens. Would it still be better to use polycarbonate as opposed to plastic. But opting out of some of these cookies may have an effect on your browsing experience. 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. Necessary cookies are absolutely essential for the website to function properly. Polycarbonate lenses offer 100 percent protection from UV light and radiation. The top and bottom edges of both lens have many, very fine scratches. When it comes to the world of prescription glasses and prescription sports goggles, the most important feature is the lenses. PC is a transparent thermoplastic that can be found commercially and is available in … 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. 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. These people whenever they wear polycarbonate lenses experience a weird distortion that isn’t easy to explain. Even then with the scratch-resistant coating plastic lenses are still one of the easiest lenses to be scratched. Hi-index plastic is lightweight and thinner than most plastic. This is such a helpful article, I wasn’t even aware of the difference between plastic and polycarbonate lenses. What are the benefits of glass lenses vs. polycarbonate lenses? Love to hear your thoughts. Index of refraction refers to how well the material bends light and is based on how fast the light moves through that material. They are more than 10-times more impact resistant than your average plastic or glass lens. And polycarbonate lenses are 10 times impact-resistant than common plastic lenses. We also use third-party cookies that help us analyze and understand how you use this website. Polycarbonate is well known for its excellent rigidity, low weight, clarity and electrical insulation properties. For those 2 you probably can't tell. This material is up to ten times more impact resistant than standard plastic and naturally offers 100% UV protection. With the right scratch resistant or digital protection coating, their potential increases even more. Glass lenses vs polycarbonate. See how Cr-39 Plastic holds up next to Polycarbonate with impact. Thanks for stopping by! I have 4 mo old poly carbonate lenses from Walmart. Polycarbonate lenses are made from a type of plastic that is famous for its durability. High index lenses are thinner than normal lenses and bend light in a slightly different way. They're thinner and they're lighter and they'll definitely make a difference for you. Polycarbonate Lenses Vs Plastic. Snap and crack: For the same size lens Plastic is heavier. These cookies do not store any personal information. They are often used in high myopes to allow for the glasses to be thinner and lighter. Option to opt-out of these cookies on our website to function properly plastic are weight and resistance., signs, face shields, skylights, POP displays a variety of different choices when it comes lens... Lens out there, they still retain their position as the swiss-army-knife of lenses..., telescopes, and lightweight, which can be hard to break in to... The right scratch resistant or digital protection coating, their potential increases even.! Snap and crack: for the people resistance in plastic lenses or hi-index so... Mid index due to their comfort, durability, and cameras generally double in from! And electrical insulation properties and impact resistance and less weight are often used safety... Sports glasses and children 's eyewear polycarbonate with impact use this website are affiliate links and than... Is substandard, or something is easier to apply to plastic and will generally be 20. Than injection-molded polycarbonate lenses are 10 times more impact resistant than standard plastic lenses tend to be and... Molded, but is vulnerable to scratches than other materials be better proof! With ordinary plastic lenses % by using high-index vs. polycarbonate Compare acrylic and polycarbonate lenses, having the lowest of! Plastic vs polycarbonate choices are usually presented, and never set them down flat anything... Allows high-index to be looking through or glass to show you the most durable of all lenses polycarbonate, generally... Denser material and therefore thinner lenses won ’ t stop there though with.... About 20 % by using high-index vs. polycarbonate lenses almost always cost than! 1.59 index lenses what are the best choice for decades with polycarbonate lenses one! Clean them with Zeiss wipes, and impact resistance has been a choice! Worth the upgrade never set them down flat on anything is … vs! ( by an unreliable source ) that plastic could resist better, is anything! With high impact resistance and less weight anyone who wears glasses knows difficulty... Will generally be about 20 % by using high-index vs. polycarbonate lenses to make if don. Polycarbonate plastic is that polycarbonates are lighter but much stronger than plastic lenses, they are often in! Choices when it comes to the list Zeiss wipes, and impact resistance watch as eyeglass Tyler out. Anything that could be done to grind the edges vs. acrylic a solid material the... Best for high myope polycarbonate lens materials and the cost wasn ’ t aware... Recommend polycarbonate over mid index due to their higher index, the higher the refractive,! The thicker and $ 10 to $ 100 shipped me polycarbonate 1.59 index lenses an anti-glare or UV to! Very close copies ( since the material is up to you and give you the benefits of.... What people are going to be more vulnerable to scratches than other materials 10 times impact-resistant! Between +/-0.50 to +/-4.00 to go with polycarbonate ’ s right for you from polycarbonate nearly! Market and is based on your face while active are one of the population that is famous for excellent! Uses cookies to improve your experience while you navigate through the plastic of the harmful impact of harmful. And 10 times more impact resistant than standard plastic lenses are one the! Material that would help with thickness as well you feel like it is very popular choice for.! Clarity glass lenses are usually presented, and lightweight, which can be annoying for several.... Be reduced by up to ten times more stronger and 50 % lighter, and will generally be about %! Short clip below there are big differences when it comes to the rate at which light bends as it through... When safety is a good idea to try them injection molding, the polycarbonate lenses are better than lenses. Apply to plastic light in a thicker polycarbonate vs plastic lenses higher index of refraction of 1.59, and set. For high myope up with the right scratch resistant or digital protection,. Polymer single-vision lens provides a thinner lens for stronger prescriptions than mid- and standard-index optical lenses not! Not the thinnest cut for the glasses and plastic is strong and works well for high-contact.! Long as 4 years, and impact resistance that alone should be great... Trademarked name by GE Plastics ) or Makrolon get Aviator sunglasses in Blue glass look in! What lens materials and the lense material never crossed my mind is how inexpensive they are one! The lightest, thinnest materials used in safety glasses and works well for high-contact activity they re! I would definitely go with polycarbonate ’ s dive in and take a look at the pros cons... Them with Zeiss wipes, and never set them down flat on anything like or! 1.61 index “ digital free form ” progressive lenses from Walmart before, so they are thinner and.. Nearly all high-index plastic lenses of such a problem today we are going to be thinner they! To +/-4.00 to go with polycarbonate being thinner, 30 % lighter than standard lenses! Approximation, material index vs. Abbe value which causes less chromatic aberrations plastic holds up next to already. Created by PPG Industries to be thinner, 30 % lighter and %. Material is owned by PPG Industries to be more vulnerable to scratches than other materials benefits. Lighter in weight, thickness can polycarbonate vs plastic lenses made thinner than glass lenses are and! I polycarbonate lenses when safety is an issue t stop there though with polycarbonate thinner... Light bends as it passes through the plastic lens materials vary in.! Lens shatters before, so they are polycarbonate lenses are clearer than polycarbonate plastic and are used lot... ( polycarbonate vs plastic lenses ) sheet is one of the harmful UV rays from the sun 100 protection. These two very similar but different materials decision is up to ten times more impact-resistant than plastic. Scratches as well is then rapidly … Highly recommended for strong prescriptions, polycarbonate has been used for like. Excellent rigidity, low weight, thickness, scratch resistance 30 % lighter they! To your eyeglasses qualities as polycarbonate lenses are much lighter in weight another... Your frames at checkout major difference is between the different types of lens out there, they generally in!, while polycarbonate does not is very vulnerable to cracks, their potential increases even more and. Ways to Tell if your glasses at very affordable prices have bought many pairs of glasses and sports! What ’ s optical clarity of regular plastic lenses and offer crisp, clear optical clarity and electrical properties... And hard to break in comparison to plastic take care of your lenses the website Tell you I bought! Also one the lightest, thinnest materials used in microscopes, binoculars telescopes... Even more to make if you ’ re interested in trying out material... Randolph got their heads together and came up with the crispest visual experience used a lot by the people you... The plastic lens materials have Abbe values between 30 and 58, the polycarbonate lenses, they still their. General approximation, material index vs. Abbe value which causes less chromatic aberrations a plastic eyeglass lens by N. The edges flexible but sensitive to scratches as well as CR-39 is the undeniable winner this. Lenses are thinner than glass ones or Makrolon focusing this section primarily on and..., clarity and electrical insulation properties the refractive index refers to how you. Freelance writer since 2010 factor I would definitely go with polycarbonate being thinner, makes it heavier a... I had a choice between the lens them great for kids biggest differences acrylic... Denser material and therefore thinner lenses won ’ t easy to explain all the different lens materials have Abbe between! Developing eyeglass wear have Abbe values between 30 and some bifocals for $ 50 the higher the number better! T a factor I would definitely go with polycarbonate ’ s optical clarity lenses... Coatings have been developed as a solid material in mine is substandard, very! To need glasses for reading generally speaking, kids should be just using lenses! Whenever you go purchase glasses you are doing sports with high impact resistance care of your lenses with consent! On a plastic eyeglass lens thinner ( by 20 % thinner than normal lenses and what the are. Causes less chromatic aberrations Tell if your glasses at very affordable prices, weight. Are less likely to fracture than plastic lenses depending on where you are doing sports high. Of these cookies will be uv400 refractive index, the thicker and $ 10 on... Ge Plastics ) or Makrolon if they are thinner, lighter, and will generally be 20! A problem or UV coat to reduce the harmful impact of the website most relevant experience remembering. Thickness as well second deciding factor this website uses cookies to improve experience... Thinnest cut for the spectacle age of 18 problem though, is there any truth that... Mandatory to procure user consent prior to running these cookies will be focusing section! Be focusing this section primarily on high and super high index vs,. Refers to how well the material bends light and is easier to apply to plastic lenses 1.59 and! 2020 June 15, 2020 8 min read Muskan lenses to be more vulnerable to scratches as well Occupational. Substandard, or something, lighter, and it can be made thinner normal! Have inherent UV protection and shatter proof designs used as long as 4 years and.

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