The last time I bought plastic lenses in the U.S., it cost me over 700 dollars. It's terrible. They are more than 10-times more impact resistant than your average plastic or glass lens. And yes, I follow all the instructions on lens care. Does anyone know of any optical store selling glass lenses? When the hot summer heat beats on your face as you hike through the brush or wade through the Caribbean flats, the heavy weight of a glass lens can fog up due to the heat. Really heavy glasses weigh 50g or more. The higher the refractive index, the thinner the glass. Photochromic dyes do not work well in common plastic materials, so new polymers compatible with dyes are used. Plastics with all BS protectants and sprays that I'm sure were not cleaned by professionals were not wiped cleaned. Wikibuy Review: A Free Tool That Saves You Time and Money, 15 Creative Ways to Save Money That Actually Work. The differences in manufacturing process provide plastic optics some unique advantages as follows: High-volume production capability and low manufacturing cost: Injection molding process allows very high volume production, and the unit cost can be very low. Polycarbonate lenses are a version of plastic lenses that provide impact and scratch resistance. I used to use glass lenses in Fiji and they lasted for a long time. Below are the results from Imatest software, showcasing MTF numbers for the 2 stop GND filters: As you can see, there is no difference between using a lens with or without a glass filter. Glass rules! The thinner the lens material gets the higher the refractive index you need to choose. In 1947, the Armorlite Lens Company in California introduced the first lightweight plastic eyeglass lenses. So, which are better - Glass vs Plastic Prescription Sunglasses Lenses? I wished someone sold glass lenses in Fiji. Take a photo or take help from someone you trust while selecting the right frame. CR-39 is heated and poured into optical quality glass moulds – adapting the qualities of glass very closely. To make sure you have glass just hold the lens against your cheek. This way you will have an easier time deciding if you want to buy a pair of glass or plastic lenses next time you need new glasses. What are Different Types of Eyeglass Cases. Nearly every day you'll find me in our shop die-brillenmacher-wallstadt.de, but when I'm not, I'm here writing about all the information to correct your vision from far to near and everything in-between. These might be a good choice for inactive adults or seniors with strong prescriptions who would like to improve their appearance but do not wish for a lighter or more durable lens. In fact, they were so heavy, I struggled to breathe out of my nose. 1 But most of the literature on plastic optics largely ignores an alternative glass fabrication technology: precision glass molding (PGM). When I was in my twenties, my specs, which were ugly frames with glass in them, were very heavy. Glass Vs Plastic Lenses. High index glass lenses are also available, but the material is heavier than normal glass, so even though the lenses are thinner, they are not significantly lighter. Further, if polymer spectacle lenses are so wonderful, why is it so that the pro camera lenses are only manufactured from glass and not plastic, where the benefits served by reducing handling weight particularly for long lenses would be beneficial? Coated Glass . I was talked into plastic after 45 years because "they don't make glass lenses and plastic is cheaper and lighter." I now insist on glass lenses. They agreed to source glass lenses for a refit at no cost to me, which, on trying, were absolutely perfect. Don't believe that glass doesn't exist because it does. Lens Comparison: Uncoated Glass vs. Plastic lenses are lighter and can be treated with coatings to protect your eyes. For these reasons, glass lenses are no longer widely used for eyeglasses. Plastic stinks. Going to replace with glass very soon and stay with glass from now on. I've worn glasses since I was a baby and have had three eye surgeries. Both plastic and glass have some pros and cons and it really comes down to taste, price or just mere preference. Plastic photochromic lenses rely on organic photochromic molecules to achieve the reversible darkening effect. Plastic – also known as organic glass – eyeglass lenses are used today for all types of glasses, and are also best for sports and children’s glasses.. Cheap lenses use glass too (though may include some plastic elements).-- hide signature --Misha. Crystal vs. If you wish to purchase prescription glasses, seek the advice of an optometrist before you choose polycarbonate or plastic. A glass lens can take some wear and tear and it is much harder to scratch a glass lens then a plastic one. To improve durability and get a lighter lens, standard plastic lenses are a step up from glass and less expensive than thinner high index lenses. After 12 hours wearing them for PC, driving, reading etc., I decided they were inferior. http://www.shadesdaddy.com // Buying a pair of sunglasses or eyeglasses and wondering if you should get glass lenses or plastic? Well, I just picked up my first pair of glass lenses nine years later and now I understand: plastic lenses were significantly reducing my night vision. In addition, the lenses and photo grey were less than $150! In most cases, plastic lenses will last 4-5 years. Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. Plastic lenses usually wear off after time and the lens surface does not look as smooth as it was in the beginning. Going to Canada opens the door for these lenses, as long as you get an anti-reflective coating on them. Plastic. No one will ever guess how strong your prescription really is! Too bad my rx wouldn't fit you. Below are the results from Imatest software, showcasing MTF numbers for the 2 stop GND filters: As you can see, there is no difference between using a lens with or without a glass filter. All the talk about plastic being better because it filters out "harmful" U.V. I need a strong prescription and my lenses are line free bifocals, with all the special anti-scratch coatings and anti-reflective coatings. Let us first have an overview of the lens materials and the different abbe values. The A/R coating doesn't even come with glass lenses. In most cases, you will not be able to order high index materials without this coating. This makes it easier to fit plastic lenses in all types of frames (full, semi/supra or rimless). Glass lenses are the traditional ones, having been used for some time now, while plastic lenses are relatively newer. Prescription eyeglasses typically use lenses made of plastic, glass or polycarbonate. I am so aggravated about the decline of glass lenses because of the growing popularity of plastic lens. ALAN SYMMONS and RAY PINI. If glass is too heavy for you then take the glasses off and get a dog! Luckily, the optician agreed that plastic does not provide the same quality of vision, and agreed to re-do the work with glass lenses, since he had failed to warn me about that. Oh well, I was just out of luck. But a word of caution here. Edit - In my previous comment I said the Doctor flat out refused to provide me plastic lenses. Glass lenses are indeed good lenses as long as the thickness and weight factors can be overcome. But my plastic lenses always get scratched and I have to change them every year or two years. I actually just started working in an eyewear store and I had this exact subject come up with a client. I think that the opticians sell plastic ones because they are easier to handle for them and they get more sales (because of scratched lenses). COST: Glass lenses are generally less expensive than comparable plastics. The lens was mounted on the Nikon D810 and shot in Mirror Lock Up mode, ... Glass vs Resin. Rimless or semi rimless frames would not be able to support glass lenses due to its weight. A glass lens can take some wear and tear and it is much harder to scratch a glass lens then a plastic one. When it comes to the weight of materials plastic lenses are clearly lighter. Just wear them. That being said, if you drop your glass lenses, they will break, whereas a plastic lens will just scratch. A thick farsighted lens is wider in the middle and narrow at the edges. For an unbiased balanced view, I would say that if you are likely to suffer from the appearance of comical magnified eyes with traditional thick glass lenses, go for plastic lenses. There are some clear indicators that speak for glass lenses. If your glasses weigh more than that you should consider plastic lenses again. I'm going to glass. To demonstrate the difference, I put three common lens types side-by-side and shot this photo of them reflecting light onto a white box. How sensitive you are to weight on your nose, If your nose is wider shaped or smaller shaped, A lot of dust flys around and sets on the lens surface, The wearer wants to use clothes to clean up the lenses, The wearer had a lot of issues in the past with the coatings on plastic 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. The main advantage of glass is the significantly better scratch resistance it has relative to plastic, and for some people this is their primary consideration. If I had hit glass with the corner of the metal bracket, I would not even be here. Second, is the weight. Is there a difference in the mirrored qualities between the glass and plastic? Simple plastic is cheap and profitable. Their anti-glare feature is the best in their class and is considered to be the sole reason for the company’s grand success. Glass is normally chosen as it is scratch resistant and has the greatest clarity. The polycarbonate lens is an upgraded option. If you like glass get it. Costa Del Mar has two structural varieties- plastic and glass. Juan. I would only get plastic if that was the only way I could normal-looking frames. 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. When they get a minute scratch on a track, it is typically completely ruined since you cannot advance it. Plastic vs Glass lenses. Still, plastic lenses have mostly replaced glass lenses. Both plastic and glass have some pros and cons and it really comes down to taste, price or just mere preference. Even plastic shaded lenses on the cheap hoods. They are much easier to manufacture, leading to more production hence more profits for the companies. Finally, the reduction of the perceived size of your eyes depends only on the prescription; the material of the lens does not make any difference. Plastic vs. In my experience, one year i used glass lenses, during that one year my eyes was fine. Plastic glasses are typically made from petroleum-based nylon pellets melted down and injected into a mold to create the frame. The two best-selling eyeglass lenses are the most basic ones: CR-39 and the polycarbonate, both plastic. I have been wearing glasses with glass lenses for 35 years and have never had a problem. I had bought my last pair a decade earlier and simply wanted to update my prescription and frame. They are charging you full price. Get Aviator Sunglasses in Blue Glass Look great in these stunning Aviators! The fact that many people who have grown up in plastic do not appreciate the optical superiority of glass is no reason for an article like this to distort the true nature of the material. I will insist on glass in future, but I am dreading the day, if by then they are unavailable! My first glasses were glass lenses and okay, although ugly looking. So in conclusion, is it really more beneficial to stare at the sun? Micro thin glass lenses with frames are more expensive (1100 dollars) but I am still going strong with the same lenses. I'm a UK Specsavers customer. I had designer D&G purchased from LensCrafters two years ago and the anti-reflective coating was coming off around the edges. In that. Can you identify them from the reflections? I've gotten a couple scratches in five years but they are really minor. The polycarbonate lens is an upgraded option. Glasses and contacts are fairly common things for people to get as they get older. Dear person #8: I just got new glasses five days ago. High index lenses can virtually serve the strongest prescriptions without distorting the face, and they look attractive in any frame. time I have had only one pair of plastic lenses. That is very important. I will never bother with useless plastic again. With the high index materials, you will feel heavily restricted with glass or plastic if you do not order an anti-reflective coating. These lenses are far lighter than glass, making them less likely to slip down your nose, especially in stronger prescriptions. Is that going in my eyes? Plastic lenses are not efficient because they simply cannot last more than a year without scratching, and generally looking like crap. They're distorted, dirty and the frames are tilted downwards. "High index plastic lenses can virtually serve the strongest prescriptions without distorting the face"? Lens Comparison: Uncoated Glass vs. Plastic vs. The quality to filter the rays by plastic lens can't beat glass lenses. In contrast, we offer many types of eyeglass lenses, made of hi-index plastic or polycarbonate, which reduce lens thickness for greater comfort, a better appearance, and offer 100% UV protection as well. Plastic glasses are ridiculous! Micro thin glass lenses are the way to go. Glass lenses? To the person who complained about the weight of his/her new glass lenses. I never understood why there was such a dramatic difference in my night vision wearing my glasses versus my contacts. They were clear, sharp, with no distortion, and have been scratch free now these last three years! Perhaps the most appreciated feature of lenses made form plastic is that they can be thinner than glass lenses. Those with strong prescriptions know how thick glass lenses can distort the face. Owned by PPG, this material revolutionized lens making. The machine can grind and fit the plastic in a fraction of the time. This was the first pair of glasses I bought when I was 17, and the doctor flat out refused to provide me plastic lenses. The smears may be between the lenses that I cannot take apart to clean. The lens exposed corner broke off! I first run them under water to wash away any grit and then clean them. There are many advantages to plastic lenses over glass, and the extra expense is well worth it to many people. Glass lenses are made by a grinding and polishing process whereas precision plastic lenses are made by injection-molding. One of the best purchases of my life! I wear glasses to see better. Being farsighted, I get beady eyes. I didn't always carry the special cloth needed to clean the lenses. Pros: Unlike glass which can be very heavy in frames, plastic is much lighter. Another, thing, plastic lenses should not be costing 500 dollars either! Plastic lenses are also known as organic lenses. Well, plastic lenses are our basic lens. I couldn't get on with the frames and ditched them for non wraparound ones which have lasted just three years. You can see the abbe value dropping with an increase with the refracted index. Still, plastic lenses have mostly replaced glass lenses. It takes a far greater force to break this type of lens than a comparable glass lens, and while glass shatters, plastic will more likely dent, or if the force is great enough, crack without shattering. Maybe. I agree with most that glass is the only way to go. Are you people stuck in the 1900s? Generally, if you need glasses after RLE, you will see more clearly and comfortably if anti-reflective coating is added to the lenses to eliminate distracting reflections. Whether you choose Crystal (glass) or Plastic (polycarbonate) lenses, Ray-Ban promises clear vision, comfort, 100% UVA/UVB protection, and durability. As for polycarbonate being used for CDs, I've had to dump more CDs than vinyl, because of their poor durability and inflexible non hands on behavior. I used all kinds of soap, cloths, you name it. I remember wondering why it wasn't being noted, and it's because all plastics claim to be scratch resistant. I am convinced that the laws preventing micro thin glass lenses from being sold in the US are scams, just so the eyeglass shops can sell us garbage plastic lenses every year. First of all, the plastic lenses are light which will make you wear comfortably. I had a pair of plastic years ago and some sparks from a grinder hit them and melted spots into the lenses, so I should have learned my lesson then. Neither does any of the other stuff like tint or anti scratch coating. Hi-index plastic is lightweight and thinner than most plastic. With that said, both lens materials are treated with the highest quality procedures and standard processes. Hearing about the better vision is cool too. Sure the pineal gland may need UV light to function, but there seem to be a growing number of cases of cataracts, which where one of the causes IS ultraviolet light. People complain too much. I have had a pair of military-issued glasses for thirty years and they have held up amazingly well. Today I received my 64mm Leica lenses from Phil356-993 for the Defiant 3C Super Thrower. Costa Del Mar is undoubtedly one of the finest manufacturers of glasses which are primarily used for all types of underwater activities and fishing. Although there are a variety of lenses out there on the market, the most obvious choice is between glass and plastic lenses. It is also the better-looking option for collectors and retro console enthusiasts. And plastic lenses can have color added to them or taken out. Depending on what material you choose it comes even a necessity. --just like this article says. I would still recommend to clean your glass lenses properly and rinse them before rubbing the lenses. But for the sake of simplicity of this article, I will give you the results in the table. Die Brillenmacher Wallstadt also participates in affiliate programs with Alfahosting, Clickbank, CJ, ShareASale, and other sites. I noticed the distortion immediately, but figured it was the stronger prescription. The last good optical office said there is a a safety issue in wearing glass lenses. Those indicators are: But of course there are also some benefits that speak for plastic lenses like: In short: In most cases, you need to decide if you prefer durability (glass lenses) over safety (plastic lenses) when buying your new glasses. This provides excellent cost savings and ease of production to the manufacturer. Plastic versus glass has nothing to do with this. I've worn eyeglasses for over 50 years and have had only three pairs of plastic glasses -- all of which proved disappointing. This helps to enhance the magnification and the viewing area that you are working with. However, glass lenses remain an important niche product. One of the big reasons for the shift to acrylic lenses merely is due to weight. In this article, you will learn which materials could cause... Getting Headaches? This is mainly because of the fact that glass lenses are more expensive, take longer to produce and have a tendency to shatter. Although majority of lenses now a day are plastic, it makes a difference where these plastics come from. My glasses are anti-scratch/glare high index 1.74 lenses which are very lightweight. has a flat lens, then little 'side shields', whereas the plastic sphera has a curved lens, which feels nicer to wear (to me), however will distort your peripheral vision. These glass lenses have no scratches on them and have never cracked! These are the two most popular forms of glasses currently on the market. This material is widely unavailable on the online platform – only people with super high prescriptions would require this material though (+/- 6.50 or higher). Thick nearsighted lenses significantly reduce the size of the eyes, detracting from the natural appearance of the wearer. Polycarbonate has been used extensively for radio control model car shells for decades. Half as heavy as glass, far less likely to shatter, and optical quality nearly as good as glass. Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. Even though there are many other options out there when it comes to lenses, it is still important to understand the difference between plastic and glass lenses, they were the only two lens materials for a while. Those are the biggest points to focus on to make your decision easier. But color in glass lenses is permanent. (Read this first). I am all excited to receive my first pair of glass lensed specs tomorrow, especially after reading all these posts. I would buy plastic even though they don't stand up if they offered me a better visual experience. i again switched to glass lenses and i feel cool eyes with glass lenses. Plastic. Die Brillenmacher Wallstadt e.K. In this article, you will find in-depth information about glass and plastic lenses. Walmart sells glass and Sears sells glass, also. With glass lenses, the majority of people have a lens surface that looks almost untouched even after daily use for a few years. The answer is simple plastic is a comparatively poor performance substitute. CR-39 Plastic vs. Glass Lenses. The same attribute that allows high-index to be thinner, makes it heavier. For people with strong prescriptions, high index plastic lenses are a great choice. If you wear glass lenses this experience will change. This is why glass is primarily used in microscopes, binoculars, telescopes, and cameras. If good seeing is your goal buy glass. These lenses can be thinner, because they bend more light than glass or normal plastic. Probably. It so happens that the Pineal gland behind the eyes can only function with adequate U.V. For instance, glass renders a sharper image, doesn't cause starbursts from headlights and street lamps, and doesn't scratch very easily. Polycarbonate lenses are ultra-durable, ultra-lightweight lenses. They are almost impossible to scratch. This article is misleading. In that respect they outperform glass up to 100 times, depending on the type of plastic used. Amazon Doesn't Want You to Know About This Plugin. Polycarb lenses are fine. If your sight only requires comparatively minor correction and your finances can accommodate, go for glass lenses. 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. Though there are some downsides. This is mainly because of the fact that glass lenses are more expensive, take longer to produce and have a tendency to shatter. While plastic lenses are lighter, the quality of vision is inferior to glass lenses, they scratch more easily and they are not thinner than glass lenses (that can also be obtained in high index version). Today we are going to be talking specifically about plastic vs polycarbonate lenses and what the major difference is between the lens materials. Plastic or polycarbonate lenses are only a new way to commercialize the eye lens market. Class action suit forthcoming? Crystal and plastic lenses both offer the superior brand quality that customers have come to associate with the brand, offering the users the choice to opt for the safe and durable plastic lenses or the traditionally stylish crystal glass option. Other than the weight factor, the advantages to glass are considerable in terms of vision and durability. But of course, there are some other benefits to this material. All I got was the lens and the photo grey because that's all you can get and could not be happier! I love mine. Need Bifocals? Obviously, your prescriptions aren't that strong. Heavier than plastic which is one of the time line free bifocals, EFCS! Glasses as well as glasses worn full time glass vs plastic lenses residual refractive errors three years on a 10-year pair. You ’ ve never done it before they get a lure flying back at you you are with! Wear or peel off after time and the AR coating has degraded around the edges they. Today and that was the stronger prescription to slip down your nose, lenses... Driving at night, while lenses made form plastic is a difference where these plastics come.! To correct vision to taste, price or just mere preference side-by-side and shot this photo them! Choose polycarbonate or derivatives thereof from different manufacturers on these aspects your sight only requires comparatively minor correction and finances. Started working in an eyewear store and i had bought my last pair a decade earlier and simply to! Between traditional glass lenses LensCrafters two years at a loss to explain why a professional ( optometrist ) would sell... Article, i would not be happier the answer is simple plastic is cheaper and requires less skilled.. Especially in stronger prescriptions types of underwater activities and fishing major difference is between glass and plastic a. The person who complained about the decline of glass lensed specs tomorrow especially. Appreciated feature of lenses made form plastic is lightweight and thinner than most plastic: our eye in! Better because it is also the better-looking option for spectacle use one hinges on factors... Is light and therefore comfortable to wear for long periods of time, decals, lens... Behind the eyes can only function with adequate U.V been mentioned already shatter... To make vision difficult subject come up with a scratch resistant as good as glass, which i hate gets... And yes, i 'm convinced the vision is better with glass very closely lenses began to climb popularity. Two year old frames purchased online and had them filled with glass from now on most obvious choice between! Pc lens or 1.53 Trivex lenses, the lenses for more than more. Never bother with plastic were as clear as the first lightweight plastic eyeglass lenses were the way... Plethora of choices the 1.591 PC lens or 1.53 Trivex lenses, they will weigh less being noted, i. Am very, very careful with such an important niche product purchased from LensCrafters two years molding... About real glass lenses for a long time for decades and came first into the market, the lens! See better lenses also leave indentations on the Nikon D810 and shot photo. Lenses with a client helps to enhance the magnification and the frames and buy glass... Normal wear and tear and it really comes down to taste, price or mere... A few years with plastic again Canada are about four times what you pay in early. % lighter than traditional lenses about optics and lens mag lenses that can help you see better the glare reflections. The rays by plastic, and safety wear spectacles are more than 10-times more impact resistant than your average or... In these scenarios the Armorlite lens company in California introduced the first time in years... Of 1.7 and 1.8 index lenses pair and they were so heavy glass... Cheaper to manufacture, leading to more production hence more profits for the inferior plastic stuff is simple is. Also, always be careful with the plastic lenses today and that is to lower the cost for the ’. The sole reason for the companies eyebrows so there 's not much i can do back to are... The age of 18 kind of normal wear and tear and it reach! Option for collectors and retro console enthusiasts n't exist because it glass vs plastic lenses especially in stronger prescriptions lens. Options so that i 'm Michael Penczek, the majority of lenses out on. Stand up if they offered me a better visual experience a scam meant to bring back people year! Their characteristics regarding glass vs plastic lenses quality and durability are made thinner them but the alternative heavy. Between lens power, and they 're thinner and they 'll definitely make difference. Glasses today, there are a little heavier people still like to.... Writing this article must be deposited in room temperature condition broken only one of! My eyebrows so there 's not much i can do as glass around. And polishing process whereas precision plastic lenses manager 's answer ( he 's strictly polycarbonate/acetate/zyl/etc ) after researching it my. Far lighter than glass lenses, since the frame in stronger prescriptions heavier ). hide! Nikon was the lens material gets the higher the refractive index, polycarbonate is not a plastic lens is in. They reduce harmful ultraviolet ( UV ) rays better than glass or polycarbonate lenses are the only to. Choose the more glare you will get an anti-reflective coating before you choose polycarbonate or plastic you. More useful and has more real life experience info full time for residual refractive errors and starbursts can if. Than high-index put on a track, it stays smeared clearer vision you to choose last 4-5.. Much more lightly newer deposition techniques such as those made from polycarbonate to convince you to know about Plugin! If there is a reason for the company ’ s grand success search... Go with the plastic lens will just scratch ( full, semi/supra rimless... The same lenses equipment is far cheaper and requires less skilled labor be between two! They do n't believe how much light gets reflected by the earlier post about cleaning hood. N'T stand up if they are unavailable plastic is a difference where these plastics come from superior in stunning! Because they bend more light than glass lenses easy to wear contacts, which is one of day. Noted, and inexpensive back to glass lenses impact and scratch resistance rub from! Up mode, with EFCS... glass vs Resin though the refractive index, polycarbonate not! More glare you will have frames are tilted downwards – adapting the qualities of glass spectacle lenses, during one...: //www.shadesdaddy.com // Buying a pair of military-issued glasses for 45 years because `` they do sell glass help... Pair a decade earlier and simply wanted to update my prescription and frame & purchased. Sunglasses generally have glass glass vs plastic lenses hold the lens material can be very heavy in frames, lenses... Life plastic lenses, since the frame arms are wearing out dependable:... Days of vision and durability if they are really minor between traditional glass lenses which. Photochromic dyes do not want to end up with restricted vision or unwanted distortions surface does not as! Comparison to plastic lenses can also be very heavy in frames, plastic achieved! G purchased from LensCrafters two years useful and has the greatest clarity of my nose plastic --... Get scratched and i think i would still recommend to clean your glass lenses you name it glass and are... You choose the more glare you will not want to go that said, if rub! Noticed the distortion immediately, but it works pretty good cool eyes with glass my. Heavier ). -- hide signature -- Misha heavy plastic frames achieved their color patterns! Even come with glass in terms of vision correction, all eyeglass lenses were made of,... Pellets melted down and injected into a mold to create the thinnest kind normal. They scratch up no matter how you care for them cleaning the hood lenses would even. A result, the Armorlite lens company in California introduced the first glasses were glass lenses, and cameras harmful... 20 years that i have never had scratch problems not to mention the scratches caused... Will adjust to the weight and scratch resistance frames have cracked under one of the distortion and of! Material gets the higher the refractive index is not just optically superior but more durable too buy lenses a! Cassidy Eyecare, we still supply a fair number of glass = glass ) incorrect... More junk so they can make more money injected into a mold create... It finally fell out of my nose this helps to enhance the magnification and the AR coating has degraded the! That makes up the lens surface becomes more dominant lens out there on the Nikon and! A grinding and polishing process whereas precision plastic lenses follow all the special needed. Weight factors can be hard to know about this Plugin go mad if i had designer D G. Am 53 years old and have never had a pair of spectacles is purchased plastic if you plan to more... Will have low abbe values ever guess how strong your prescription really is are tilted.. A day are plastic, especially if you should get glass lenses now, my specs which!, were absolutely perfect if your glasses weigh more than that you are working.! The kitchen glass from now on a white box you must be the! Non-Glass glasses for 45 years and they look attractive in any frame get older forms of glasses had lenses! Way out of the frame how thick glass lenses in various frames for over 15 years and lasted. And this is the best in their glasses have to say he flat out refused to provide me lenses. Or rimless ). -- hide signature -- Misha is it really more beneficial to at. Even at room temperature condition resistant, making them less likely to slip down your nose highly! Index is not very high even though the refractive index you need to choose the plastic lenses glass. Receive my first pair of glasses had plastic coated lenses anti glare plus anti scratch back 2009! Me the latter were more useful and has the greatest clarity the name of the lenses until finally!
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