And plastic lenses can have color added to them or taken out. --just like this article says. The two best-selling eyeglass lenses are the most basic ones: CR-39 and the polycarbonate, both plastic. Plastic glasses are typically made from petroleum-based nylon pellets melted down and injected into a mold to create the frame. progressive-glasses.com Die Brillenmacher Wallstadt, Mosbacher Straße 18, 68259 Mannheim, Germany Tel: +49 621 705 210. link to Can You Be Allergic To Glasses Frames? Polycarbonate has been used extensively for radio control model car shells for decades. Still, plastic lenses have mostly replaced glass lenses. Yes, I'm well aware that glass lenses have been around for decades and came first into the market place. I took the glasses back and got another pair and they were scratched in a few weeks as well. 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. Costa Del Mar is undoubtedly one of the finest manufacturers of glasses which are primarily used for all types of underwater activities and fishing. Refractive Index. Obviously, your prescriptions aren't that strong. Plastic optics have cost and performance benefits as compared to ground and polished glass optics. I was talked into plastic after 45 years because "they don't make glass lenses and plastic is cheaper and lighter." Reply Reply with quote Reply to thread Complain. Walmart takes no responsibility. This is mainly because of the fact that glass lenses are more expensive, take longer to produce and have a tendency to shatter. I responded, "What is so safe about driving at night trying to see through scratched up lenses?" Plastic vs Glass lenses. This material is widely unavailable on the online platform – only people with super high prescriptions would require this material though (+/- 6.50 or higher). It most definitely is a plastic. For now, I have to wear contacts, which I hate. Glass is normally chosen as it is scratch resistant and has the greatest clarity. I am determined my next lenses are glass ones. This is mainly because of the fact that glass lenses are more expensive, take longer to produce and have a tendency to shatter. It so happens that the Pineal gland behind the eyes can only function with adequate U.V. They were clear, sharp, with no distortion, and have been scratch free now these last three years! I have been wearing glasses with glass lenses for 35 years and have never had a problem. Now opticians don't sell glass lenses and they say that the plastic lens are coated, etc. I used to use glass lenses in Fiji and they lasted for a long time. First of all, there are glass and plastic materials. Die Brillenmacher Wallstadt e.K. But especially if you compare the lens surfaces after a few years of daily use from plastic and glass lenses the difference is pretty clear. This is true for plastic and glass materials. One of the best purchases of my life! It wasn’t until the late 1960s that plastic lenses began to climb in popularity. Glass lenses are the traditional ones, having been used for some time now, while plastic lenses are relatively newer. Don't forget: our eye glasses in Canada are about four times what you pay in the US. Who remembers to carry that all the 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. Unless, of course, you are an optometrist and recognize that if glass catches on again, you may not be able to handle as big a boat payment. The lens was mounted on the Nikon D810 and shot in Mirror Lock Up mode, with EFCS ... Glass vs Resin. If your glasses weigh more than that you should consider plastic lenses again. Same reason to not expect any cures for any diseases, because there's no money to made in that, but they'll manage the disease and take your money in the meantime (conspiracy theory that actually brings out the cynic in me). One of the main advantages of glass is that glass lenses are much thinner than plastic lenses, (although they are heavier). This was the first pair of glasses I bought when I was 17, and the doctor flat out refused to provide me plastic lenses. I personally prefer plastic lenses over glass for 2 reasons. Plastic lenses are lighter and can be treated with coatings to protect your eyes. Essentially, whether plastic lenses are better or glass depends on one’s requirements. These glasses survived boot camp and six years of military service. My two year old plastic lenses are always dirty and the AR coating has degraded around the edges. Plastic lenses. Plastic stinks big time! I've worn eyeglasses for over 50 years and have had only three pairs of plastic glasses -- all of which proved disappointing. Think about it: whenever a high quality optical performance is needed (cameras, camcorders, telescopes) it's glass lenses they use, not plastic! I would never have bought them if I knew I was being subjected to the heavy weight of glass. Plastic lenses are not efficient because they simply cannot last more than a year without scratching, and generally looking like crap. Wikibuy Review: A Free Tool That Saves You Time and Money, 15 Creative Ways to Save Money That Actually Work. 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. Maybe I am missing a point, I thought that being made from "plastic," the Nikon lenses would have similar impact resistance as the polycarbonate ones. They are very light and therefore comfortable to wear. With a lens in such a condition, you will probably have some visual problems. The lens was mounted on the Nikon D810 and shot in Mirror Lock Up mode, ... Glass vs Resin. This article is misleading. ORDER NOW SCRATCH RESISTANCE Glass is the undeniable winner in this category. Very nice! About a year and half ago I decided to get Nikon lenses (1.6 index) for my prescription eyeglasses, from Hakim Optical in Toronto, Canada. I am so aggravated about the decline of glass lenses because of the growing popularity of plastic lens. This provides excellent cost savings and ease of production to the manufacturer. For those who need little vision correction, normal plastic lenses will deliver all of the benefits of plastic at a lower cost than high index lenses. Glass lenses will scratch less than plastic lenses. This is why glass is primarily used in microscopes, binoculars, telescopes, and cameras. He replied, "you must be one the few who cannot get on with plastic lenses then." Depending on what material you choose it comes even a necessity. Plastic Vs Polycarbonate Lenses- Which One Is Better? Hearing about the better vision is cool too. Plastic Ray-Ban Lenses. Why are you implying that polycarbonate is not a plastic? I would buy plastic even though they don't stand up if they offered me a better visual experience. Now I am looking for a new pair of frames to fit my lenses, since the frame arms are wearing out. Although there are a variety of lenses out there on the market, the most obvious choice is between glass and plastic lenses. Today I received my 64mm Leica lenses from Phil356-993 for the Defiant 3C Super Thrower. Rimless or semi rimless frames would not be able to support glass lenses due to its weight. As you can see it is even more important to get an anti-reflective coating the higher the index gets of the lens material you choose to wear. I've gotten a couple scratches in five years but they are really minor. 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. If I had hit glass with the corner of the metal bracket, I would not even be here. However, glass lenses remain an important niche product. I plan to purchase glass lenses instead of plastic. Glass lenses are the traditional ones, having been used for some time now, while plastic lenses are relatively newer. I will never bother with useless plastic again. They are also highly break resistant. They're thinner and they're lighter and they'll definitely make a difference for you. I have a passion for progressive lens designs which led to a patent in 2014. Although glass lenses offer exceptional optics, they are heavy and can break easily, potentially causing serious harm to the eye or even loss of an eye. First of all, the plastic lenses are light which will make you wear comfortably. I couldn't get on with the frames and ditched them for non wraparound ones which have lasted just three years. Further, despite caring for them with kid gloves, the central part of both lenses gradually developed fine scuff marks, evidently due to them rubbing slightly against the inside of their storage case. 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. I had been satisfied with the glasses (half rim) until a few weeks ago when I dropped them for the first time on the kitchen tile floor. Take a photo or take help from someone you trust while selecting the right frame. The reason these lenses darken in sunlight but not indoors under artificial light, is that room light does not contain the UV (short wavelength light) found in sunlight. My advice is: look at all your options and find something you get on with and what your lifestyle is. Need Bifocals? CR-39 Plastic vs. Glass Lenses. I wear glasses to see better. If you have struggled with “coke bottle glasses” or have forgone glasses in certain situations, embarrassed by how they made you look, you will likely love these lenses. Plastic lenses are impact resistant, making them a better choice for children, active adults, sportswear, and safety wear. So, let us have a detailed look on these aspects. But of course, there are some other benefits to this material. The higher the index you choose the more glare you will have. Inspired by the earlier post about cleaning the hood lenses. In my humble opinion, opticians in the US have done their patients a great disservice in pushing plastic lenses to the exclusion of glass. The glass sphera (falco or something?) Width and Weight. Pros: Unlike glass which can be very heavy in frames, plastic is much lighter. I first run them under water to wash away any grit and then clean them. I bought plastic lenses and am out €300. I used all kinds of soap, cloths, you name it. Get Aviator Sunglasses in Blue Glass Look great in these stunning Aviators! Personally, I prefer to have both lens options so that I’m armed and ready for every angling scenario. You do not want to end up with restricted vision or unwanted distortions. If you choose to have a higher index material the glare (reflections) on the lens surface becomes more dominant. Heavy glass lenses also leave indentations on the nose, while lenses made from plastic sit much more lightly. Thank you everyone for commenting. I don't wear them! The most basic choice is between traditional glass lenses and newer plastic lenses, such as those made from polycarbonate. You have not listed even one of the advantages of glass lenses. This makes it easier to fit plastic lenses in all types of frames (full, semi/supra or rimless). But a word of caution here. Today I received my 64mm Leica lenses from Phil356-993 for the Defiant 3C Super Thrower. 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