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polycarbonate lenses vs high index

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

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