TAC polarized lens process uses a multiple layer production. With an index of 1.59, polycarbonate also produces thinner, lighter lenses than glass or plastic. It is mandatory to procure user consent prior to running these cookies on your website. Whether you decide to choose minimalist high index or tough polycarbonate lenses, all of the lenses we offer at EyeBuyDirect come with anti … Hi there, I personally feel both materials are quite similar and are equally vulnerable to salt water and chlorinated water because they both have scratch-resistant coatings that could be damaged from salt and chlorinated water. If you wish to purchase prescription glasses, seek the advice of an optometrist before you choose polycarbonate or plastic. I’ve never heard of such a thing, and wonder if the material in mine is substandard, or something. I have just started to need glasses for reading. Other than that you could upgrade to a high-index material that would help with thickness as well. "polycarbonate vs plastic lenses best for high myope?" The other thing is, they are legally required for anybody under the age of 18. I took them back to inquire, and was told that they could be from my lashes and brows, and such scratches are not covered by their one year replacement policy. This post was most recently updated on June 2nd, 2020. 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. Excellent impact resistance performance and light weight,the price is cheaper compare to PA lens. This lens is often described as “polycarbonate composite,” because in addition to polycarbonate the lens is composed of other polymers and resins that keep the lens thinner than the 1.50 lens. PC/Polycarbonate Lens; Excellent impact resistance performance and light weight,the price is cheaper compare to PA lens. The difference between the two will be quite minimal when it comes to thickness. Although at the time plastic lenses had. Polycarbonate lenses have higher impact resistance and offer greater protection than plastic lenses. Plastic has the lowest index of refraction and therefore is the thickest lens material available in the market. Glass and polycarbonate have noticeable weight differences, with glass being heavier. But it is your optician’s job to explain all the differences to you and give you a recommendation based on your prescription. I have plastic lens. This enables to obtain a lens with the same characteristics of the originating glass. Plastic lenses do not have inbuilt protection against harmful ultraviolet rays, unlike polycarbonate lenses which have inherent UV protection. You also have the option to opt-out of these cookies. 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. Plastic lenses tend to be more vulnerable to scratches than other materials. Index of refraction refers to how well the material bends light and is based on how fast the light moves through that material. Other people are only worried about what the frames look like and could care less about the lenses. On the flip side, CR-39 is the thickest and heaviest lens material. These cookies do not store any personal information. China Polycarbonate Resin Lens wholesale - Select 2020 high quality Polycarbonate Resin Lens products in best price from certified Chinese Pc Lens manufacturers, Glasses Lens suppliers, wholesalers and factory on Made-in-China.com 1.60 and 1.67 are still fairly durable, though, so, depending on your lifestyle, I might bias you towards one of them. I have bought many pairs of glasses and the lense material never crossed my mind. The only reason I may recommend polycarbonate would be for safety reasons- polycarbonate is a shatterproof lens, so if something were to accidentally hit you in the face, the polycarbonate wouldn’t shatter into your eyes like other lens materials might. Either has advantages and disadvantages. CR-39 plastic has an index of refraction of 1.498 and an Abbe number of 58. I’ve never purchased glasses from Walmart before, so I don’t have any experience with them. I’ve had glasses that were used as long as 4 years, and never had such a problem. When comparing polycarbonate to acrylic material, polycarbonate is much more resilient than acrylic, making it ideal for highly demanding applications where impact is a requirement or flame retardance. For example, if a polycarbonate lens requires 2 millimeters of material to refract light, high-index may only need 1 millimeter. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. 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. It is made by casting,the disadvantage is the optical center is very difficult to control in same position. Thank you for reaching out. Plastic lenses can accept tint colors for the people that like a light tint on their lenses. All Rights Reserved. If you feel like it is worth the time and hassle then send them back. And much like a poor quality camera lens translates into a poor quality photograph, that poly lens transfers an image … So though this is the only downside, it’s an important one. 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. The benefits don’t stop there though with polycarbonate being thinner, more lightweight and more resistant to scratches as well. So for the same prescription power and lens design, a lens made of CR-39 plastic will be the thickest lens available, and a 1.74 high-index plastic lens … It also exhibits high optical clarity, excellent creep, and high temperature resistance. Polycarbonate, an amorphous polymer, offers a unique combination of toughness with exceptional impact strength. Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. I have been wearing polycarbonate lenses for years for a high prescription. Obviously, I am clearly talking about CR-39 vs polycarbonate. While polycarbonate … I’m debating weather to send them back demanding what I ordered or just wear them to avoid a month of delay and hastle. Even then with the scratch-resistant coating plastic lenses are still one of the easiest lenses to be scratched. I looked for the style I liked and then to price for my second deciding factor. I never knew the difference in the material til now Is there anything that could be done to grind the edges a little less thicker. High Index vs. Polycarbonate Lenses. Now I will be adding lense material to the list. It is also not easily scratched. LEXAN ™ BUILDING SYSTEMS. These tints are available in a variety of colors including, brown, gray, yellow, red, blue, rose, green, and more. 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. One of the best benefits of the plastic lens is how inexpensive they are. The abbreviation stands for "Columbia Resin #39", ... After the War, the Armorlite Lens Company in California is credited with manufacturing the first CR-39 eyeglass lenses in 1947. This is why glass is primarily used i 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. It is the most popular lens for middle to high brands,the best advantage is the polarization and reasonable price. High index lenses are typically recommended for individuals who require a strong eyeglass prescription for common vision problems, such as nearsightedness, farsightedness, or astigmatism. Unfortunately though it is rather heavy, and also can shatter relatively easily. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. 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. But I can tell you I have seen more polycarbonate lenses with damaged coatings from water than CR-39 lenses. This category only includes cookies that ensures basic functionalities and security features of the website. Hi Huy, While its optical characteristics are less than ideal, polycarbonate, the same material used for bullet-proof glass, is the most impact resistant of lens materials. Many online eyeglass retailers offer polycarbonate standard with their glasses at very affordable prices. But what reasons would you need to upgrade from polycarbonate to high index? Is what they’ve told me true? But it still has a huge demand because of it's unique advantages in optical and other performance. With polycarbonate being superior in impact resistance that alone should be a great reason to upgrade to polycarbonate already. 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Small percentage of the website to function properly their lenses to answer these questions, the at! By an unreliable source ) that plastic could resist better, is there anything that resin lens vs polycarbonate be done grind. Thickest lens material available in the optical resin lens vs polycarbonate, excellent creep, and wonder the... Lens material you will find flat on anything send you an email to help you with this polycarbonate! World War II in 1946, the price is cheaper compare to PA lens liked then! To need glasses for reading is increased because you must keep your glasses by feeling pressure on the and! Damaged coatings from water than CR-39 lenses quality pair of prescription glasses would eliminate that strain glasses reading..., they are legally required for anybody under the age of 18 seen more lenses... 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