polycarbonate vs plastic lenses best for high myope? New comments cannot be posted and votes cannot be cast, Press J to jump to the feed. Width and Weight. Both materials are excellent choices, with a plus for trivex eyeglass lens, especially the quality of vision and resistance , but also with a higher price . Plastics are synthetic materials that are made of large polymer molecules. Dr. Michael Rizen answered. While comfort is important for the wearer, protection from impact is the main concern for many industrial workplaces and so it is essential an appropriate lens material is chosen. They’re also ideal for strong prescriptions since they do not add thickness when correcting vision, minimizing any distortion. Will there be any noticeable visual distortion? However, thinner lenses won’t necessarily mean they will weigh less. Believe it or not, you can’t always tell the difference between polycarbonate vs. CR-39 lenses at a glance. The key difference between polycarbonate and plastic is that polycarbonates are lighter but, much stronger than plastic.. Polycarbonate and plastic are polymer materials. By using our Services or clicking I agree, you agree to our use of cookies. With a higher index (of refraction), light is bent more efficiently, therefore it requires less material to achieve the eyeglass prescription making the lenses … The lenses should be as easy to clean as possible (clean coatings on plastic lenses are better) Newest tech in terms of lens designs in most cases is available in plastic lenses only; When it comes to permanent tints and photochromic tints you will have more options with plastic lenses; Plastic lenses deliver higher impact resistance Do not get any sort of anti-glare coatings if you work in an environment that requires you to be close to intense sources of heat for long periods of time, such as working as a cook, or in a factory setting. Second, is the weight. But if you consider the lifetime cost of new polycarbonate lenses versus high index (say, $100 difference, new glasses every 4 years, live for another 40 years = $1000), it's not that much more money for high index (depending your your parameters for that equation). Technology is evolving, and like any new material that appears, trivex lenses bring an addition to the older polycarbonate eyeglass lenses. Anytime you are in the market for a new pair of eyeglasses, you are going to be provided with different options regarding the lens material. Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. Polycarbonate has more chromatic aberration that other lenses, but most people don't notice it.As far as safety, thousands of people walk around in high index lenses and they're fine, unless you do something that puts your eyes at particular risk. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. Polycarbonate versus CR39 plastic lenses With 1 in 4 people requiring prescription eyewear, choosing the right provider for your safety prescription glasses is key. Thinner and lighter than plastic, polycarbonate (impact-resistant) lenses are shatter-proof and provide 100% UV protection, making them the optimal choice for kids and active adults. I can't imagine how mutilated they'd be if I hadn't bought the upgrade. The monomers of polycarbonates are bisphenol A and phosgene. What are polycarbonate lenses? I want my vision to be perfect but also am scared that hi-index lens may not be as safe. Phillips BoroView 3 & 5 lenses are designed to meet the need for the extra UV and IR pro... [read more] It also scratches really easily, even with antiscratch on top. Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. Trends have led away from thick lenses, with many people starting to prefer contacts over glasses, so polycarbonate lenses satisfy a demand among lens-wearers. This makes it a perfect material for baby bottles, refillable water bottles, sippy cups, and many other food and beverage containers. Yeah I agree polycarb is typical on safety eyewear and sports goggles or even rimless frames as they’re less brittle. They are also one the lightest, thinnest materials used in developing eyeglass wear. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. High-index plastic lenses have a refractive index between 1.6 and 1.74; the index of ordinary plastic and polycarbonate lenses is 1.5 and 1.59, respectively. Former Lenscrafters lab tech, checking in. You should choose these over plastic lenses if you wear your glasses for longer periods of time, if your prescription is between the -6.00 to +6.00 range. Thank you for the detailed response! -- never heard those terms before. polycarbonate lens vs plastic lens first thing to understand that the higher the lens index the thinner the lens will, polycarbonate comes with 1.586 index and and normal plastic lens with 1.50 index Impact Resistance lenses are 10 times more stronger and 50% lighter and 45% thinner compare to regular plastic glasses. They cut the glare significantly on the monitor and overhead lights, lessening eye fatigue. Polycarbonate Lenses vs Trivex Lenses . polycarbonate lenses Polycarbonate Lenses are the most durable of all lenses. And given that the most I've ever spent on one frame at zenni is $30 (including lenses with upgrades) it's a very minor gripe indeed. One of the most popular plastic materials used is … Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. If you are doing sports with high impact risk like tennis or squash, it is better to use poly carbonate lens. 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