polycarbonate lenses vs high index

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

S2000 Dual Exhaust, Bmw X1 Invoice Price, Peugeot 406 Fuel Tank Capacity, Ford Focus 2008 Fuse Box Location, Obligation Meaning In Gujarati, Do You Need To Paint Primer, Somersworth Nh Property Tax Rate, Ceramic Tile Adhesives,

Posted in Uncategorized.

Leave a Reply

Your email address will not be published. Required fields are marked *