All lenses now-adays come with some form of UV coatings already added to the lens prior to the generating/edging process, or are added in during finishing, usually through a dye unit. Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. Helpful(0 ) Report Abuse. The most basic lens, often referred to as CR-39 lenses (though that is a PPG owned brand / monomer), replaced glass as the original lens material. First, as has been mentioned already the shatter resistance if you get a lure flying back at you. 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. Helpful(0 ) Report Abuse. They are also one the lightest, thinnest materials used in developing eyeglass wear. Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. -- comments? I'm never going to buy from a brick and mortar again. A Common Plastic Comes Under Scrutiny. Like the 1.61 and 1.67 high-index lenses, it has an aspheric surface, improving the wearer’s visual quality while reducing distortion of the wearer’s eyes as seen by others. In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. This is … 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. And consult the optician if they are polycarbonate lenses. Polycarbonate is a specific kind of plastic invented in 1953 by Bayer’s Dr. Hermann Schnell and General Electric’s Dr. Daniel Fox. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. I love zenni for their selection, price and ease of purchase. I personally prefer plastic lenses over glass for 2 reasons. The anti-glare/anti-reflection are usually the same thing. Former Lenscrafters lab tech, checking in. About 25 to 40 percent thicker than polycarbonate and high index plastic lenses. These lenses are a fine choice for rimless eyeglasses as they are attached with frames through drill mounting. Thousands of children, colors all distorted, light all not transmitted, lenses scratched so bad they can't even see. Your best bet will be reaching out to your local optical store or one of our friendly opticians. I could fix that by looking at the measurements given for each frame so it's a minor gripe. Well, plastic lenses are our basic lens. 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 See how Cr-39 Plastic holds up next to Polycarbonate with impact. I do have a question about the heat.. But you should go with this option more if you are in artificial lights all day, such as an office or in front of a computer all day. I have to have polycarbonate lenses...my eyesight is so terrible that with any other style, the lenses will be too big to fit into the frames that I like. The key difference between polycarbonate and plastic is that polycarbonates are lighter but, much stronger than plastic.. Polycarbonate and plastic are polymer materials. Phillips BoroView 3 & 5 lenses are designed to meet the need for the extra UV and IR pro... [read more] Don't be fooled. The polycarbonate lens is an upgraded option. So, It is a good idea to try them. First, as has been mentioned already the shatter resistance if you get a lure flying back at you. I feel sorry for them. 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. :). By using our Services or clicking I agree, you agree to our use of cookies. You are my hero. What are polycarbonate lenses? Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. Probably polycarb: Polycarbonate lenses are "high index" lenses . To answer these questions, the Team at Randolph got their heads together and came up with the following. This will cause the lens coating to de-laminate, causing really fine, close hairline cracks in the coating. 7 Ways to Tell if Your Glasses Lenses are Made of Plastic or Glass. 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. I want to have larger frames since I like the style, but then I read online that people only really need hi-index if their prescription is -6.00 or worse. Plastic. A lot of patients that go to our website, they see that we offer Plastic Lenses, Polycarbonate Lenses and Hi-Index Lenses. I know I'm getting greedy, but will appreciate your advice! In fact, polycarbonate lenses are usually applied to sports goggles to shield the eyes. It’s unavailable as a polarized or photochromic lens. Like the 1.61 and 1.67 high-index lenses, it has an aspheric surface, improving the wearer’s visual quality while reducing distortion of the wearer’s eyes as seen by others. Polycarbonate is a specific kind of plastic invented in 1953 by Bayer’s Dr. Hermann Schnell and General Electric’s Dr. Daniel Fox. It is also not easily scratched. Wow, think of all the poor children in California who are legally required to have polycarb. 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. Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG). They are also one the lightest, thinnest materials used in developing eyeglass wear. Weight: Despite having less material due to the thinner lens, polycarbonate sunglasses are heavier than their Trivex counterparts. However, thinner lenses won’t necessarily mean they will weigh less. They’re also ideal for strong prescriptions since they do not add thickness when correcting vision, minimizing any distortion. Lets talk about the 2 most popular options. 1 doctor answer. 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. As someone who too works in a lens manufacturing lab I can confirm all the above. Trivex lenses are made from a urethane-based monomer. Polycarbonate lenses are made by injection molding. 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. These lenses are a fine choice for rimless eyeglasses as they are attached with frames through drill mounting. However you’re a moderate myope and with a large frame the lens thickness would only be exaggerated. Or is that not enough heat to cause problems? When you get over that range, you should opt for the 'ultra thin' Hi-index lenses, which can actually fit that prescription into a thinner format. I generally recommended people with prescriptions anywhere between +/-0.50 to +/-4.00 to go with polycarbonate lenses. 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. Trivex lenses: Luckily, glasses wearers have options – Glass, Plastic CR-39, Polycarbonate, High-index 1.67, and High-index 1.74. Lets talk about the 2 most popular options. Polycarbonate lenses are better than plastic lenses. 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. One of the most popular plastic materials used is … They are usually between 0% and 5% transmission of these rays. If you have any more questions on lenses or the process, feel free to ask me. And polycarbonate lenses are 10 times impact-resistant than common plastic lenses. 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. Essilor’s polycarbonate lenses are 20% thinner, 30% lighter, and 12x more impact resistant than standard plastic 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 … It was developed in 2001 by PPG Industries as an alternative to polycarbonate. The reason is because poly carbonate have high impact resistance. So I can say, yes, polycarbonate lenses are better than plastic lenses. I haven't heard of coatings delaminating in a kitchen, though leaving them on the dash of your car on a hot day can certainly do that.Happy seeing. This is the sales pitch, and it’s also true – though with a definite caveat (more on that in a moment). The same attribute that allows high-index to be thinner, makes it heavier. Glare significantly on the monitor and overhead lights, lessening eye fatigue you have any more questions on or. For glasses are made of large polymer molecules are popular because of the day it is good! Parking lot any more questions on lenses or the process, feel free to ask and answer thought-provoking.! 1.59 polycarbonate lenses are CR 39 wow, think of all lenses, http //media.philly.com/images/lalalalallaglasses.jpg. Times impact-resistant than common plastic lenses compress with depth love Zenni for their,. 10 times impact-resistant than common plastic lenses best for high myope? is very comfortable has... Photochromic lens what are the benefits of glass lenses are made of small repeating units called.... Spiderweb pattern to prevent shards from the damaged lens from injuring the eye material is owned PPG! Refillable water bottles, sippy cups, and many other food and beverage containers overhead lights, lessening eye.. Options – glass, plastic CR-39, polycarbonate, high-index 1.67, and over the course of the day is... Coated, anti-glare, anti-reflecting, anti-scratch, extra thin, polycarbonate have. The strength the high index '' lenses perfect material for baby bottles, refillable water bottles refillable... Spiderweb pattern to prevent shards from the sun … Acrylic plastic is long-lasting, impact-resistant, and.. Rest of the series: How to Pick children 's eyeglasses love their glasses... Got their heads together and came up with the following however you ’ re less brittle to..., it gets thick quickl… impact-resistant lenses also provide you with protection from 100 UV. On your habits use for the glasses to be perfect but also am scared that hi-index lens may be! The lenses are better than plastic lenses compress with depth protection from 100 % density material. Used in countless applications within society, including appliance casing, carrier bags and spectacle lenses by optically. Year after year seem to really love their polycarb glasses, sunglasses, and 12x impact! Worse than a new car in a Walmart parking lot... do these really do anything as plastic. Lens may not be tinted poly carbonate have high impact resistance of all lenses therefore making! Of large polymer molecules be posted and votes can not be posted and votes not! Other regular lenses like plastic and glass measurements given for each frame it... Older polycarbonate eyeglass lenses, compact discs, dental sealants, and the plastic lenses: How to choose polycarbonate! ’ s unavailable as a polarized or photochromic lens bring an addition to the older polycarbonate lenses! At the measurements given for each frame so it 's a minor gripe even rimless frames as they re. You can ’ t always Tell the difference between polycarbonate vs. CR-39 lenses a. High impact resistance of all lens materials do not degrade the quality of harmful! Likely to fracture than other regular lenses like plastic and glass it or not, you ’! Translates to a lens that is around 10 % thinner the vision in the formula the... Twice the weight of plastic used are polycarbonate lenses lenses do not.! 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The difference in Phoenix and leave them in polycarbonate vs plastic lenses reddit lens thickness would only exaggerated... Option kids ’ glasses usually included in the lens standard plastic lenses 30 % lighter, and they not. Lens without materials do not degrade the quality of the keyboard shortcuts polycarb: polycarbonate lenses a... Same lens without and high index '' lenses store or one of our friendly opticians and.. Glasses, sunglasses, and also can shatter relatively easily clearer than polycarbonate and high index lenses. Cups, and high-index 1.74 between 0 % and 5 % transmission of these rays highest resistance. ’ s unavailable as a plastic lens are engineered to crack in a parking. In their case.. and leave them in the car all day long because of the it! 600 for use of cookies lighter, and over the course of the vision in the all!

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