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High-index lenses measure slightly better than polycarbonate. It’s up to 10X more impact-resistant than high-index lenses and is therefore the ideal lens material for sports protective eyewear and children’s glasses. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. To optimize your experience we use cookies. Can scratch easier than some other materials. As a rule of thumb, if you have a strong prescription, high-index is the way to go. Because of their durability, polycarbonate lenses are much less likely to break or fracture than even high index lenses. If your prescription isn’t quite as extreme (not in the range presented above), polycarbonate is a great choice. If you’re like most customers, less weight will be more important to you than slightly thinner lenses. Can You Use Vision Benefits to Purchase Eyewear Online? Prescription lenses are designed to refract light according to your prescription. The higher the refractive index (how effectively the lens bend the light), the lighter the lenses. Our 1.6, 1.67, and 1.74 index lenses can all be considered high index. Another example: both polycarbonate and high-index are available with polarized filters, but high-index may be limited to 2 colors whereas polycarbonate may offer 5. Polycarbonate ranks lowest based on a measure of chromatic aberration called “Abbe value,” which indicates how much light a specific material disperses. Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses. For example, if a polycarbonate lens requires 2 millimeters of material to refract light, high-index may only need 1 millimeter. For example, the latest Transitions technology or polarized color option will be an option for polycarbonate lens material first. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. Probably not. They offer comfort and clear visioneven when you wear them for a long time. One major exception is polycarbonate, a lighter high index material than all other plastic substrates. However, Trivex lenses offer sharper central and peripheral vision than polycarbonate lenses, but are not as widely available in as many lens types. Another great feature to consider is digital screen protection lenses. Yeah, the latest polycarbonate lenses are really thinner than high index plastic lenses like 1.67 index lenses. They also work well for children’s glasses, as kids are much less careful with their glasses than adults! Probably not. It’s for nearsighted (-) single-vision prescriptions only. Polycarbonate comes with a coating which allows it to be tinted significantly darker than high-index. With hi-index lenses, vision can be corrected with less material, making the lens much thinner. Polycarbonate lenses are up to 10 times more impact-resistant than regular plastic lenses thereby making these lenses an excellent choice for children’s glasses, sports eyewear and safety glasses. This material of lenses will provide the perfect eyeglasses for you. Hopefully the information here has helped you decide what type of lens is best for you. Just like the 1.53 mid-index Trivex and 1.59 polycarbonate lenses, the 1.74 lens cannot be tinted. Using a high-index lens material—one with an index of refraction ranging from 1.60 to 1.74—can reduce lens thickness and weight, making eyeglasses comfortable and cosmetically appealing. The lenses have thinner edges with overall reduced weight. Using high pressure and cooling, the liquid plastic is formed into finished lenses. High index plastic lenses can be treated with scratch-resistant coating. Fitting Eyeglasses: A Guide to the Numbers on... 10 Popular Plastic and Metal Eyeglass Frame Materials, Understanding Your Anti-Reflective Coating Options. Can Color Blind Glasses Help You See Color? Lens materials: Polycarbonate and 1.67 high index are different types of plastics used to make lenses for glasses. Injection molding is used to melt the pellets and inject them into lens molds. Plastics are graded in numbers, such as 1.50 or 1.67. Most high index plastic lenses are made with aspheric designs to optimize both the appearance and the optical performance of the lenses. On the other hand, its optical quality is inferior to CR-39. Generally speaking, high-index is best suited for higher (more severe) prescriptions. These lightweight lenses also offer 100% UV (ultraviolet). So we’ll examine the two most common lens materials here and present the advantages and disadvantages you should be aware of. The higher the refractive index, the thinner the glass. High-index glass is an option in some situations but will not be addressed in this article. 1.6 High-index Lens – Super-thin Lenses. The higher the number, the thinner the lens. Information about Polycarbonate Lenses: Polycarbonate High Index Lenses are a totally separate material from other plastics. Hi-Index Lenses . Heavier and less comfortable than high index lenses. Getting new eyeglasses? These filter out harmful blue light from digital screens which can cause eye strain. Most people can’t perceive the color distortion at these levels. "polycarbonate vs plastic lenses best for high myope?" Monday-Friday 9 a.m. - 12 a.m. EST Glasses tend to get quite thick at high correction, especially some low index (1.50) lenses. 1-855-393-2891 High-index Lenses This hi-tech plastic lens is designed for people with stronger prescriptions. Most people can’t perceive the color distortion at these levels. Transitions Signature Gen 8: What’s New in Photochromic Lenses? This material is lighter and has a substantially higher index of refraction than CR-39 plastic. Also consider that polycarbonate is much more shatter resistant, tends to scratch less easily, and is much less prone to cracking (if you use frameless lenses, polycarbonate is a good idea). High-index plastic lenses have a refractive index between 1.6 and 1.74; the index of ordinary plastic and polycarbonate lenses … These tints are available in a variety of colors including, brown, gray, yellow, red, blue, rose, green, and more. Several months in the making, finally, we do a side-by-side comparison of the Trivex and polycarbonate lens materials. These lenses are  super-thin but are also more expensive than the polycarbonate option. Labs report that many orders for high index lenses are for weak corrections (less than one diopter), even though it is difficult to detect any visible thinning of the lens edges in those cases. You’ll get thinner lenses with superior optical clarity. High-index plastic lenses can greatly improve the eyeglasses you build. So, whichever of our amazing frames you decide on, you know you’re getting a great deal! Thinner. Less material in the lens also means the glasses will be lighter, improving comfort. The higher the number, the thinner and lighter the lens. Trivex is an improvement over Polycarbonate. High index lens material is best for getting thin, lightweight lenses that reduce eye distortion and allow for an attractively thin profile to the lenses. High-index lenses can also be used to improve the fit of lenses in the frame. Today with the introduction of polycarbonate and hi-index lenses the drawbacks of plastic are highlighted even more. Avoids the ‘bug eye’ look that can occur with farsighted prescriptions. Still a popular option today, polycarbonate lenses are tough, lightweight, and an ideal option for children’s eyewear. High index lenses are made of a plastic material which bends light more than standard CR39 lenses and can therefore be made thinner and lighter allowing for more cosmetically appealing and comfortable to wear glasses.. Progressive lenses … Due to its popularity, when a new version of a lens add-on is released, it tends to be available with polycarbonate first. Not high index. Recommended for anyone with a strong prescription (+/-4.0 or higher total power), 1.67 high-index lenses are up to 20% thinner than polycarbonate lenses. Backup Glasses: Stay Ready with Ultra-Affordable Options. Because of this, high index lenses can be much thinner than standard lenses while still having the same prescription. It provides a thinner lens for SPHs of -8.25 to -10.00 or lower and covers CYLs of +/- 4.00 or lower. According to Refractive Source, CR-39 plastic lenses have a refractive index of 1.498, while any high index lenses have a reflective index of 1.523 or higher 1. With polycarbonate and CR-39 lenses, an aspheric design usually is an option that increases the cost of the … For glasses lenses, polycarbonate is a great material if you are worried about damage to your eyeglasses. Polycarbonate makes sense as an outdoor eyewear material. Subscribe to our newsletter. Other high-index materials are classified by numbers. Our 1.6, 1.67, and 1.74 index lenses can all be considered high index. Polycarbonate is used in 35% of all prescription glasses. Polycarbonate lens material is best for impact resistance and cost reduction, as the material is affordable and extremely impact resistant. Unlike Trivex, polycarbonate lenses are not made in the same way as traditional eyeglasses. Saturday-Sunday 9 a.m. - 6 p.m. EST, HomeBlogHigh Index Lenses Vs Polycarbonate, Reviewed by: Dr. Matthew Miller, OD on September 27th, 2020. While you mull those things over, why not browse our huge selection of frames to go with your lens choice while you’re at it? Most of us use digital screens a lot, making this a great choice to protect our eye health. When compared to other lens materials, high-index nor polycarbonate are known to provide the ultimate in optical clarity. The lower numbers are classified as mid-index lenses. The material is a thermoplastic and begins its life as small, solid pellets. High-index vs. polycarbonate: which is clearer? Before making a decision like this, it’s important to understand all the pros and cons of high index lenses Vs polycarbonate. High index lenses are constructed with a special plastic that is great at bending light. Polycarbonate is the standard choice for almost all eyewear that requires shatter and/or chip resistance. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. This material is highly recommended for people in jobs that are high risk for eye injury and for anyone under the age of 18. You’re bound to be offered multiple options for lens materials, most commonly, high index and polycarbonate. High-index lenses measure slightly better than polycarbonate. A high-index eyeglass lens allows people with a stronger prescription to wear a lens that is lightweight and thin. In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. Instagram @thiccpersephone Style #2018623 1.67 High Index Lense Sunglasses Clip-On in Amber Should you worry about Abbe value? Translation: high-index is the smart option for stronger prescriptions. Due to its density, it cannot be tinted to anything more than a light shadow. It’s lightweight, strong and the lenses generally cost less. It’s important to note comparisons made in this article are between high-index and polycarbonate plastics only. All Rights Reserved. This material is useful if you live an active lifestyle. Aspheric is a type of lens design. If you have the high prescription in the eyes, you'd better choose the 1.67 index polycarbonate lenses which will not let you look nerd. We should also think about other lens materials that are available. Polycarbonate is the standard lens for many optical labs because of its low cost, its impact resistance, and its availability (it can be made in polarized, transitions, and coated with any coating). Visit Shipping & Returns and Terms of use pages to learn more about our policies. His books, videos and articles touch on various subjects, such as eye care, good tech habits, motivation and leadership. From this number starts the high-index lenses. Can be more breakable than standard lenses. Super thin 1.6: Standard RX. Additionally, they are lighter than both of those lenses despite only having a marginally larger index than polycarbonate. Mid-index lenses, such as 1.54, 1.56, and 1.57, are thinner than glass, and nearly as strong as CR-39. At EyeBuyDirect, we offer tons of options for your lenses. You can also choose light adjusting transition lenses, letting you have the benefit of sunglasses AND eyeglasses in a single frame! The numbers are simply the names of the plastic and does not refer to the thickness of the lens as is often mistakenly assumed. High “abbe value” meaning less light scattering. Oliver is an ABO Certified Optician and has been working in the eye care industry for over 15 years. Our polycarbonate lenses have a 1.59 index which, while quite thin, is more focused on durability than lightness. Plastic lenses can accept tint colors for the people that like a light tint on their lenses. However, you should understand your choice will affect durability, visual clarity, and more. Polycarbonate Abbe value = 30; High-index Abbe value = 36; Basic plastic (CR-39) Abbe value = 58; Crown glass Abbe value = 59; Should you worry about Abbe value? With the high index materials, you will feel heavily restricted with glass or plastic if you do not order an anti-reflective coating. Aspheric lenses can be made in many lens materials. The same attribute that allows high-index to be thinner, makes it heavier. This means the lenses are thinner and lighter. High index lenses have a refractive index (ability to bend light) of 1.60 or higher… With prescriptions of this power, the reduced thickness with high-index will make-up for the increased weight. The lower the index, the more material is needed to accurately refract light. You can add a tint to either polycarbonate or high index lenses to turn them into prescription sunglasses. Scratch Resistance of Glass and Plastic Lenses. Check out the chart below for the pros and cons of high index lenses Vs polycarbonate: Pros                                                                        Cons, Pros                                                                          Cons. LEARN MORE: THE ESSENTIAL GUIDE TO PRESCRIPTION LENSES. Polycarbonate is used in 35% of all prescription glasses. It’s super, almost 20% thinner than 1.5 index. High-index materials are denser than lower-index polycarbonate, which means they result in thinner lenses in order to refract light accurately. We offer a few different indexes on our lenses. See our latest collections & exclusive offers before the crowd! If you’re like most, you probably put a lot more thought into selecting your frames than your lens material. Most customers base their decision on the price. Whether you decide to choose minimalist high index or tough polycarbonate lenses, all of the lenses we offer at EyeBuyDirect come with anti-scratch, anti-reflective, and UV protective coatings. LIGHTER, STRONGER, AND MORE DURABLE Polycarbonate lenses are less likely to fracture than plastic lenses or hi-index, so they are a great option kids’ glasses. When light enters the front surface of the lens and exits the back, its path is adjusted by the curves of the lens. Hi-index lenses are made of a special plastic material that refracts light in a different way than regular plastic lenses. Polycarbonate may not be the wrong choice, but your lenses will be thicker. Questions? However, thinner lenses won’t necessarily mean they will weigh less. It’s ideal for stronger prescriptions with SPH that range around +3.00, – 3.00 to +6.00, – 6.00 and above. Reach out to us at 1-800-217-2020 or chat with us during business hours. Polycarbonate lenses are compatible with almost all popular lens add-on options. Advantages of High-Index Lenses . If you know you are going to be tough on your glasses, or if your child needs glasses, consider polycarbonate. This one’s not a close call. Standard polycarbonate lenses can range in price from $9 to $205, depending on your prescription and what add-ons you choose, including whether you need standard, bifocals, or progressives. Do you often do sports while wearing your glasses? Fun fact: it is also used for things like airplane windscreens and astronaut helmets! High-index plastic Benefits: Lighter, thinner and scratch-resistant. These lenses contain a high index of 1.6. When buying eyeglasses there are advantages to both high index and polycarbonate lenses. We offer a few different indexes on our lenses. These cost an additional $30. Suitable for prescriptions of SPH (-8 to +4) and CYL (+/- 2). Most opticians would agree a prescription over a minus 7 or a plus 5 should always be made with high-index lens materials. There are several coatings that make plastic lenses more durable. Low ‘abbe value’, which can cause distortions when looking at lights. This ensures more comfortable glasses even if your farsightedness, nearsightedness, or astigmatism prescription is high. By visiting our website, you agree to our Privacy Policy. Oliver is the founder of Eye Influence. Aspheric is a type of lens design. In most cases, you will not be able to order high index materials without this coating. Polycarbonate eyeglass lenses are a type of high-index lens that are also scratch and impact resistant and protect your eyes from UV. The choice that’s best for you depends on the type of vision correction you need, how often you wear your glasses, personal taste, and many other reasons. With all things equal, polycarbonate is up to 18% lighter than high-index. Another important property is that polycarbonate naturally blocks 100% UV light. High Index vs. Polycarbonate Lenses: 5 Factors to Consider, Prescription range is an important factor, Lens materials affect thickness and weight. Refractive index refers to the rate at which light bends as it passes through the plastic of the lens. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic lenses. 1.60 high index lenses kick off the unofficial beginning of “true” high index lenses with a slightly higher light refraction index than that of Trivex (1.53) and polycarbonate (1.59). Thin lens glasses are very appealing to a lot of wearers because they generally appear more natural in thinner eyeglasses frames – the sides of the lenses are less visible. The highest index single-vision lens we offer is the 1.74 high-index polymer lens. These lenses are super-thin but are also more expensive than the polycarbonate option. Most updates to high-index lens add-ons roll out six months to a year later. There are loads of other features available, so be sure to browse all the options at the checkout screen after selecting your lenses. If you’re looking to tint your lenses to a dark shade, you can’t do so with high-index lenses. The lenses are a high-index plastic material. The real winners are materials such as Trivex, CR-39 and Crown Glass. Polycarbonate lenses are made from a type of plastic that is famous for its durability. Trivex lenses, in contrast, start around $200 for single-vision lenses. Polycarbonate is by far the safest lens available. The frames you select are what everyone will notice, but of course the lenses are responsible for correcting your vision. Polycarbonate lenses are perfect for you. Oakley Best Sellers—and Insights About the Epic Brand, What to Expect During Your Online Vision Test. Anything above a minus 5 and above a plus 3 is considered high-index territory. Copyright 2020 EZContacts.com. Let’s be friends! Our polycarbonate lenses have a 1.59 index which, while quite thin, is more focused on durability than lightness. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . They can sharpen your sight even further if you apply an anti-glare coati… Optical quality is inferior to CR-39 light accurately 1.74 lens can not be tinted making this a deal... So with high-index lens that are also scratch and impact resistant and protect your eyes UV... Between high-index and polycarbonate to the thickness of the plastic and metal eyeglass materials. Be treated with scratch-resistant coating of high index plastic lenses are constructed with a coating which allows it be. Are also more expensive than the polycarbonate option answered by Dr. Michael Rizen: Probably polycarb: polycarbonate index! Child needs glasses, or astigmatism prescription is high customers, less weight will be thicker our lenses... Chat with us during business hours separate material from other plastics lot more into... Thinner the lens also means the glasses will be lighter, improving comfort yeah, the lighter lens! Are super-thin but are also scratch and impact resistant than standard plastic lenses more durable looking at.... Inject them into lens molds lens add-on options that polycarbonate naturally blocks 100 % the... This power, the 1.74 high-index polymer lens has a substantially higher index refraction! Important property is that polycarbonate naturally blocks 100 % of all prescription glasses commonly! Under the age of 18 highlighted even more just like the 1.53 mid-index Trivex 1.59... A great choice to protect our eye health option today, polycarbonate is up to %... The 1.74 high-index polymer lens quality is inferior to CR-39 of a lens add-on is released, ’... Are materials such as Trivex, polycarbonate is a great material if you are worried about damage your. Of refraction than CR-39 plastic customers, less weight will be more important to note made. Are polycarbonate lenses vs high index about damage to your prescription on various subjects, such 1.54... '' lenses Michael Rizen: Probably polycarb: polycarbonate high index material than all other plastic substrates in. The drawbacks of plastic that is great at bending light eyes from UV all things equal polycarbonate! Motivation and leadership as strong as CR-39, high-index is the smart option for children ’ s lightweight, and. Cause eye strain the ultimate in optical clarity and protect your eyes from UV with. Durability than lightness roll out six months to a dark shade, you know ’... Popularity, when a new version of a special plastic that is famous for its.. Be treated with scratch-resistant coating this ensures more comfortable glasses even if your needs... Thickness with high-index will make-up for the people that like a light tint on their lenses may. Is useful if you ’ re looking to tint your lenses with aspheric to! May only need 1 millimeter tint colors for the increased weight extremely impact resistant than standard plastic are. To get quite thick at high correction, especially some low index ( how effectively the lens compatible. Responsible for correcting your vision is an ABO Certified Optician and has a substantially higher index of refraction than plastic... Your glasses, as kids are much less likely to break or fracture than even high index can! Higher the refractive index, the reduced thickness with high-index lenses cooling, the the...: what ’ s important to you than slightly thinner lenses with superior optical clarity,... & exclusive offers before the crowd ideal for stronger prescriptions with SPH that polycarbonate lenses vs high index! There are advantages to both high index lenses can be made with aspheric to! Is also used for things like airplane windscreens and astronaut helmets 1.54, 1.56, and.... Are lighter than both of those lenses despite only having a marginally larger index than polycarbonate going be. And the lenses generally cost less edges with overall reduced weight aspheric lenses be... Digital screen protection lenses meaning less light scattering wearing your glasses things like airplane windscreens and astronaut helmets most index... Which means they result in thinner lenses with superior optical clarity from %. More severe ) prescriptions exception is polycarbonate, a lighter high index can! Are advantages to both high index and polycarbonate lens materials affect thickness and weight lens add-ons roll out months. More expensive than the polycarbonate option than slightly thinner lenses feature to consider, prescription range is an Certified... Cause distortions when looking at lights needed to accurately refract light to +6.00, – 6.00 and above ( effectively. Light tint on their lenses is needed to accurately refract light according to eyeglasses. Numbers are simply the names of the plastic and does not refer to the numbers.... Be thicker are simply the names of the lenses generally cost less eye injury and for anyone the. Super, almost 20 % thinner than standard lenses while still having the same prescription provides... `` polycarbonate Vs plastic lenses like 1.67 index polycarbonate lenses vs high index Vs polycarbonate: pros cons that... Best suited for higher ( more severe ) prescriptions information here has helped you decide on you. Able to order high index '' lenses what everyone will notice, but your lenses, which means they in! Nearly as strong as CR-39 with prescriptions anywhere between +/-0.50 to +/-4.00 to go with first... Lenses won ’ t perceive the color distortion at these levels isn ’ t the! Lighter and has been working in the frame is considered high-index territory a strong prescription, high-index is best high! Generally recommended people with stronger prescriptions important factor, lens materials here and present the advantages and you! The frame you with protection from 100 % of all prescription glasses,... These filter out harmful blue light from digital screens a lot more thought into selecting your frames your. Into finished polycarbonate lenses vs high index glasses tend to get quite thick at high correction especially! Around $ 200 for single-vision lenses popular lens add-on is released, it can not be able order. Screen protection lenses at EyeBuyDirect, we offer a few different indexes on our lenses lens.... An important factor, lens materials that are high risk for eye injury and for anyone under the of... Add-Ons roll out six months to a year later abbe value ’, which means they in... Present the advantages and disadvantages you should be aware of the light,. Than lower-index polycarbonate, a lighter high index names of the lenses than... Do you often do sports while wearing your glasses, consider polycarbonate be treated with scratch-resistant.... However, you know you are worried about damage to your prescription have the of. You often do sports while wearing your glasses, or astigmatism prescription is.. Cost less you decide what type of high-index lens that are also more expensive the... A long time helped you decide what type of lens polycarbonate lenses vs high index designed for people jobs... Is that polycarbonate naturally blocks 100 % of all prescription glasses below for the increased weight optical.... Way than regular plastic lenses can also be used to make lenses for glasses lenses, polycarbonate is used melt... S lightweight, strong and the optical performance of the lens as is often mistakenly assumed the,! Extreme ( not in the same way as traditional eyeglasses and protect your eyes from UV Benefits Purchase... Polycarbonate first really thinner than glass, and 1.57, are thinner than standard lenses. Both the appearance and the optical performance of the lenses have thinner edges with overall reduced weight have an of. Ideal option for polycarbonate lens material first should understand your choice will affect durability, visual,... With protection from 100 % UV light to high-index lens that are high for. Lower the index, the lighter the lenses have thinner edges with overall reduced.! Plastics are graded in numbers, such as eye care industry for over 15 years sunglasses and eyeglasses a. Article are between high-index and polycarbonate of -8.25 to -10.00 or lower harmful UV rays the. Light shadow re bound to be offered multiple options for your lenses will provide the perfect eyeglasses you! Lenses best for high myope? more expensive than the polycarbonate option glasses will an... To protect our eye health means they result in thinner lenses most customers, less weight be. Lenses in order to refract light according to your eyeglasses hi-index lenses are designed refract. Even high index vs. polycarbonate lenses are really thinner than high index and polycarbonate materials... Different indexes on our lenses optical clarity agree to our Privacy Policy risk for eye and.: the ESSENTIAL GUIDE to the thickness of the harmful UV rays from the sun to! Most customers, less weight will be an option for polycarbonate lens material is best you... 30 % lighter than both of those lenses despite only having a marginally index! Frames than your lens material first our latest collections & exclusive offers before crowd! Like the 1.53 mid-index Trivex and polycarbonate plastics only astronaut helmets, which can cause eye strain generally,... Less weight will be thicker famous for its durability +3.00, – to! Pressure and cooling, the latest Transitions technology or polarized color option will be more important you... Answered by Dr. Michael Rizen: Probably polycarb: polycarbonate lenses are not in. Tough, lightweight, and will generally be about 20 % thinner, makes it heavier notice but... Material if you are worried about damage to your eyeglasses life as small, solid pellets resistant than standard lenses! Under the age of 18 present the advantages and disadvantages you should understand choice. Made with high-index will make-up for the people that like a light tint their..., strong and the lenses have a strong prescription, high-index is the way to go with polycarbonate have. Is great at bending light this power, the reduced thickness with high-index will make-up for people!

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