Upon hard impact, glass will shatter which could lead to further injury. Polycarbonate Lenses: Pros & Cons. Polycarbonate may not be the wrong choice, but your lenses will be thicker. Hi-index lenses are made of a special plastic material that refracts light in a different way than regular plastic lenses. These lenses are not scratch resistant like glass, so it does need an additional scratch-resistant layer. This is somebody who has a -5.00 prescription. Plastic lenses are much lighter than glass lenses, and are less likely to shatter. Trivex lenses are made from a lightweight, impact-resistant material. 1-855-393-2891 This kind of UV protection is an inherent part of the material they’re made out of, which glass and plastic lenses lack. Of course, if you’re unsure of which to choose, you can always. Plastic vs glass lenses 03-05-2004, 12:14 PM. So imagine your glasses now, having these really thick, heavy lenses or these thin and light lenses. In this article, you will find in-depth information about glass and plastic lenses. Polycarbonate lenses are more than just durable: they also have 100% protection from the sun’s UV rays! Ask an Optician. Polycarbonate lenses (often abbreviated as PC), are the most common lens type and considered the industry standard. And reasonable prices mean it’s realistic to buy more than one pair without going over your eyewear budget. At EyeBuyDirect, you’ll find polycarbonate lenses built into stylish and high-quality frames at affordable prices. Glass tends to be a heavier material than polycarbonate lenses. Polycarbonate is 10 times stronger. And the difference is significant. For those sensitive to pressure or who plan to wear eye protection for long hours, polycarbonate may be a better choice for its lightweight and pliable properties. With polycarbonate’s super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. The strength of polycarbonate is largely dependent on its thickness. However, thinner lenses won’t necessarily mean they will weigh less. Material Index vs. Abbe Value. 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. Polycarbonate is the worst performing commonly used plastic, having the lowest value of 30. The impact protection on polycarbonate is so good that both safety and sports eyewear use polycarbonate for their lenses. Eyeglasses – St Michel in Silver and Prism in Cafe Glace. Subscribe to our newsletter. What is the best and proper setup for glass under the welding hood? Hands down, polycarbonate lenses are a better choice for impact protection. What you gain in impact resistance and higher index, you pay for in how the lens transfers light into your eye. Glass lenses are by far optically clearer than polycarbonate lenses. The following holds true for both materials: Choosing the most suitable one hinges on individual factors such as visual acuity and personal taste. Polycarbonate and tempered glass are two materials that can be used when placing windows or constructing any sort of building that requires large amounts of see-through or semi-transparent material. Similar to polycarbonate, Trivex lenses are thin, lightweight, impact-resistant, and provide 100% UV protection. Choosing the lens for your frames relies on you. To answer these questions, the Team at Randolph got their heads together and came up with the following. If you don’t know what type of lenses you have, they’re probably polycarbonate. If you really can’t figure it out or want to be absolutely sure before using a product … Monday-Friday 9 a.m. - 12 a.m. EST It’s strongly recommended with polycarbonate or high-index lenses, which reflect more light than basic plastic CR-39 or glass lenses. It comes down to your needs and comfort level when choosing a proper lens. First of all, there are glass and plastic materials. When compared to standard glass, both acrylic and polycarbonate materials provide many benefits that standard glass does not afford. With the right scratch resistant or digital protection coating, their potential increases even more. Glass tends to be a heavier material than polycarbonate lenses. However, Trivex lenses offer sharper central and peripheral vision than polycarbonate lenses, but are not as widely available in as many lens types. Unlike glass lenses, plastic lenses cannot be coated in an elevated temperature environment. Glass and polycarbonate lenses can handle occasional falls but aren’t invincible against long drops. Polycarbonate Lens Optical Quality Is Significantly Inferior To Glass And CR-39. Polycarbonate lenses are popular because of the thin look they give to the frames and the strength the high index plastic provides. The higher the refractive index, the thinner the glass. It is our hope, that the information above will help guide your next purchase of Randolph eyewear. So, polycarbonate lenses vs plastic or glass? If you’re sensitive to your frame’s weight, for example, polycarbonate lenses may be the right choice. Over time, UV damage may lead to eye problems such as cataracts or cancer. Each lens offers advantages and disadvantages. Weight: A lens weight becomes noticeable when wearing your frames for long periods. (Few people now use glass, which is heavy and breakable.) Eye care professionals ask this basic question every time they sell a pair of glasses. Glass vs. Polycarbonate Sunglasses Lenses, Women’s Black Aviator Sunglasses Frame & Style Guide, The Navigator Aviator: Classic Sunglasses, Learn more about Randolph’s lens technology. Lens materials affect thickness and weight. Try not to use your shirt! Saturday-Sunday 9 a.m. - 6 p.m. EST. This is why glass is primarily used in microscopes, binoculars, telescopes, and cameras. Although there are a variety of lenses out there on the market, the most obvious choice is between glass and plastic lenses. They’re the go-to lens material for safety glasses, and extremely versatile when it comes to outfitting them with features such as Transitions, polarization, or other feature combinations. Plastic lenses are also known as organic lenses. This is why you will only see polycarbonate lenses used for safety and/or sports eyewear. Plastic lenses come in more colors and larger sizes than glass lenses… 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. Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses. The choice is up to you. These advantages include increased light filtration, impact resistance, increased strength, and improved weight and viscosity flow characteristics. Trivex ® Lenses. Visit Shipping & Returns and Terms of use pages to learn more about our policies. A new, brand-name type of lightweight and resistant plastic has hit shelves: Trivex. In a typical plastic or metal frame, thickness can be reduced by up to 20% by using high-index vs. polycarbonate lenses. “Good enough for fighter pilots, good enough for us.”. No matter whether you prefer glass or polycarbonate, always make sure your lenses have 100 percent UVA/UVB protection. Considering their price and the many pros that come with polycarbonate lenses, they are definitely worth it in both the long run and short term. By visiting our website, you agree to our Privacy Policy. Borosilicate Glass vs. Polycarbonate Outdoor Lights: The Verdict. The higher the number, the thinner the lens. Let’s be friends! "polycarbonate vs plastic lenses best for high myope?" 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. For those sensitive to pressure or who plan to wear eye protection for long hours, polycarbonate may be a better choice for its lightweight and pliable properties. Polycarbonate lenses are a version of plastic lenses that provide impact and scratch resistance. Of course, if you’re unsure of which to choose, you can always contact our support team for advice. Trivex lenses are made from a urethane-based monomer. Polycarbonate lenses have an index of refraction of 1.59, and will generally be about 20% thinner than standard plastic lenses. Here’s a quick rundown of their top features to help you decide. Plastics are graded in numbers, such as 1.50 or 1.67. Glass is the undeniable winner in this category. The coating materials must be deposited in room temperature condition. Both! Polycarbonate lenses took some time to gain traction in the optical world. Creators use a mold to construct the lenses in much the same way regular plastic lenses for glasses are made. Polycarbonate lenses are highly resistant to impact, won’t shatter, and are 10 times stronger than glass or standard plastic, making them ideal for children, safety lenses, and physical activity. While they’re not the thinnest kind of lens out there, they still retain their position as the swiss-army-knife of eyewear lenses. Making the Correct Choice: Acrylic vs Polycarbonate Luminaire Lenses. Plastic or glass lenses? With hi-index lenses, vision can be corrected with less material, making the lens much thinner. Glass is the most vulnerable in this category. Independent, authentic American eyewear since 1973. Glass was excellent, in that it has by far the best optical quality (you’ll never see quality photographic or telescope lenses made of any kind of plastic!). There are a lot of great eyeglass lenses in the market, but before you buy a pair, it is imperative to consider both their pros and cons. When eye safety is a concern, polycarbonate or Trivex lenses usually are the best choice for your glasses, sunglasses, and sports eyewear. At EyeBuyDirect, you can get a pair of polycarbonate lenses with your choice of frame for as low as $18! Polycarbonate lenses are ultra-durable, ultra-lightweight 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. Is one really better than the other? And most of all, it gets thick quickly, … And if you actually compare the two you can actually see that the plastic on the right compared to the polycarbonate on my left is about 25-30% thicker with the same exact prescription. Trivex lenses, however, are composed of a urethane-based monomer and are made from a cast molding process similar to how regular plastic lenses are made. They have similar properties, as well as different advantages and disadvantages. Glass and polycarbonate lenses. Most commonly used ophthalmic plastic lens materials have Abbe values between 30 and 58, the higher the number the better optical performance. 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. Even plastic shaded lenses on the cheap hoods. If you’re sensitive to your frame’s weight, for example, polycarbonate lenses may be the right choice. Who is the winner of polycarbonate lenses vs. glass lenses? Fun fact: The material polycarbonate was originally used to manufacture the windshields of fighter planes!Fun fact: Polycarbonates lenses are worth it. I see both plastic and glass clear lens material at the stores. Can Color Blind Glasses Help You See Color. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . It was developed in 2001 by PPG Industries as an alternative to polycarbonate. Plastic lenses are less reflective than glass lenses, making them clearer and less prone to glare. They’re durable and impact-resistant, lightweight and thin, and even offer extremely effective UV protection. It is similar to polycarbonate, but it has some distinct advantages. If you’re the type to have a pair of glasses for a long period of time, then glass lenses are a better choice. This results in softer and less durable coatings unless newer deposition techniques such … Plastic vs Glass lenses. The two best-selling eyeglass lenses are the most basic ones: CR-39 and the polycarbonate, both plastic. © 2021 Randolph Engineering, Inc. All Rights Reserved. However, it must be noted that with either glass or polycarbonate, as long as you clean your lenses with a microfiber cloth and keep your eyewear in a case, you will help protect against day to day scratching and your lenses will last longer. Most glass will absorb UV radiation, but when it comes to protecting your eyes from the sun’s damaging rays, polycarbonate plastic is the best bet. Start browsing our catalog of eyewear and sunglasses to see our selection of fashionable frames. Was the perfect lens material for safety glasses $ 18 Rizen: probably polycarb: polycarbonate lenses were introduced... To shatter not be coated in an elevated temperature environment and the polycarbonate, but it has distinct... Weigh less re probably polycarbonate invincible against long drops less reflective than glass lenses… polycarbonate lens optical Quality is Inferior! Find polycarbonate lenses help guide your next purchase of Randolph eyewear basic ones: CR-39 and polycarbonate. 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