Polycarbonate lenses may be thinner, lighter, and more durable than plastic material, but that’s not necessarily true when compared to rival technology like Trivex lenses. Refractive index refers to the rate at which light bends as it passes through the plastic of the lens. One of the biggest differences between acrylic and polycarbonate is the cost. A 41-year-old member asked: polycarbonate vs plastic lenses best for high myope? Does it really hurt your eyes? A plethora of choices are usually presented, and it can be hard to know what’s right for you. If you are visiting an optical office make sure to inquire and see what lens materials they have. But opting out of some of these cookies may have an effect on your browsing experience. Winner: Plastic Lenses . Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. High index lenses are thinner than normal lenses and bend light in a slightly different way. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. Glass lenses are much heavier than plastic lenses, which can be annoying for several reasons. polycarbonate lenses. Thankfully, polycarbonate and nearly all high-index plastic lenses have 100 … ($45 vs $55) Though their specific cost varies, polycarbonate lenses almost always cost more than ordinary plastic lenses. Highly recommended for strong prescriptions, polycarbonate lenses offer 100% UV protection and shatter proof designs. PC is a transparent thermoplastic that can be found commercially and is available in … Eye lens discoloration or spots on eye lens. polycarbonate vs plastic lenses best for high myope? Kanobi received a Bachelor of Fine Arts in film and television from New York University in 2010. Now I will be adding lense material to the list. I only clean them with Zeiss wipes, and never set them down flat on anything. Polycarbonate (PC) sheet is one of the most used plastics and is available throughout the world today. See how Cr-39 Plastic holds up next to Polycarbonate with impact. So if you are buying for your child or are somebody under the age of 18 and buying some glasses for yourself, polycarbonate is required by law. Several months in the making, finally, we do a side-by-side comparison of the Trivex and polycarbonate lens materials. 1 doctor answer. Glass vs plastic lenses, high index vs standard, polycarbonate? Polycarbonate vs. Trivex Lenses: Which One to Choose Polycarbonate and Trivex Lenses are both materials for you to choose from when it comes to glasses. As a general approximation, material index vs. Abbe value has the following inverse relationship as shown on this Zeiss supplied plot. Let’s take a look at the pros and cons. Whenever the constructors or any type of furnishing industry look for a translucent plastic, they often choose between the polycarbonate and the Plexiglass sheet. The benefits don’t stop there though with polycarbonate being thinner, more lightweight and more resistant to scratches as well. Hi Amy! 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. 20 years experience Ophthalmology. They do have m ... Read More. The liquid polycarbonate is then rapidly … Polycarbonate lenses are slowly starting to come standard from many eyeglass manufactures. It is because both of them are transparent plastic and are used a lot by the people. Polycarbonate is stronger and more flexible but sensitive to scratches. Polycarbonate lenses are better than plastic lenses. 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. When it comes to the world of prescription glasses and prescription sports goggles, the most important feature is the lenses. Polycarbonate does have a lower Abbe value so there are more chromatic aberrations, this can be reduced by adding a quality anti-reflective coating to the lenses. The two major differences between glass and plastic are weight and scratch resistance. August 18, 2016 Jon Off CNC Laser, CNCROi.com News, Plastic Products, PETG and Polycarbonate share very similar properties, today at CNCROi.com, we’ll review why one is better than the other for most applications. 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. The polycarbonate lens is an upgraded option. One of the best benefits of the plastic lens is how inexpensive they are. Even when we talk about Polycarbonate or derivatives thereof from different manufacturers. Polycarbonate lenses, which the optic shop likes to upgrade you to, is up to 10x more impact resistant than a basic plastic lens. The other thing is, they are legally required for anybody under the age of 18. Plastic lenses do not have inbuilt protection against harmful ultraviolet rays, unlike polycarbonate lenses which have inherent UV protection. Trivex lenses have many of the same qualities as polycarbonate lenses and offer crisp, clear optical clarity. Although at the time plastic lenses had. Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. Plastic Lenses. The plastic material itself is very vulnerable to scratches and hard scratch-resistant coatings have been developed as a solution to this problem. It is very popular today especially for sunglasses and sports eyewear. Most other plastic lenses are made from a cast molding process, where a liquid plastic material is baked for long periods in lens forms, solidifying the liquid plastic to create a lens. Probably polycarb: Polycarbonate lenses are "high index" lenses . Most commonly used ophthalmic plastic lens materials have Abbe values between 30 and 58, the higher the number the better optical performance. Polycarbonate lenses have higher impact resistance and offer greater protection than plastic lenses. The reason why us opticians and many other eye care practitioners don’t recommend the inexpensive over the counter reading glasses is that most people don’t have the same prescription in each eye. Hi Tim! Plastic lenses can accept tint colors for the people that like a light tint on their lenses. Prescription eyeglasses typically use lenses made of plastic, glass or polycarbonate. Trivex is the preferred alternative to polycarbonate when the lightness of your lens is paramount. Whenever you go purchase glasses you are always given a variety of different choices when it comes to lens materials. What we as opticians try to do when styling you for a frame is to ensure that your eyes are as centered in the frames as possible. The key difference between polycarbonate and plastic is that polycarbonates are lighter but much stronger than plastic. Polycarbonate lenses were the first plastic high index lenses. This is why we want all patients to get Poly-carbonate lenses. PLASTIC VEINS. Necessary cookies are absolutely essential for the website to function properly. I recently purchased non-polycarbonate 1.61 index “Digital Free Form” progressive lenses from zennioptical.com. This provides Trivex lenses the benefit of crisper optics than injection-molded polycarbonate lenses, according to PPG. With polycarbonate’s super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. … But people often tend to get confused between both of them. Polycarbonate lenses also provide you with protection from 100% of the harmful UV rays from the sun. Polycarbonate is a generic name for the industrial plastic manufactured from bisphenol A and has a wide range of application from household items to aerospace and automotive industry. Polycarbonate Lenses are the most durable of all lenses. When it comes to the world of prescription glasses and prescription sports goggles, the most important feature is the lenses. Polycarbonate is sometimes called Lexan (trademarked name by GE Plastics) or Makrolon. Just to add that polycarbonate is plastic. But I can tell you I have seen more polycarbonate lenses with damaged coatings from water than CR-39 lenses. These tints are available in a variety of colors including, brown, gray, yellow, red, blue, rose, green, and more. For glasses lenses, polycarbonate is a great material if you are worried about damage to your eyeglasses. Print. Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG). Impact-resistant Lenses. This post was most recently updated on June 2nd, 2020. 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. Ultimately the decision is up to you, I am just here to show you the benefits of each. Home Research Solutions Plastic Properties Table. Snap and crack: For the same size lens Plastic is heavier. Glass lenses vs polycarbonate. Acrylic vs. Polycarbonate Compare Acrylic and Polycarbonate to identify the best option for your project. Would it still be better to use polycarbonate as opposed to plastic. 01/27/2015. TMEN. 1 doctor agrees. Glass lenses are clearer than polycarbonate plastic and will provide you with the crispest visual experience. Other people are only worried about what the frames look like and could care less about the lenses. Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. Polycarbonate Lenses. Glass vs plastic lenses, high index vs standard, polycarbonate? 20 years experience Ophthalmology. This is the sales pitch, and it’s also true – though with a definite caveat (more on that in a moment).If you are going to mountain bike race, or practice karate chops on live opponents (which is probably a case for contact lenses anyway), polycarbonate makes sense.But 10x more impact resistant is a bit misleading.A CR-39 lens is quite impact resistant. 2018-2021 © EyeHealthHQ.com. Ask a Plastics Expert. What are Polycarbonate Lenses? 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