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. Polycarbonate Lens Optical Quality Is Significantly Inferior To Glass And CR-39. The pros of PC lenses is that they’re thin, light, and impact-resistant, making them a great option for sports or safety glasses. Plastic vs glass lenses 03-05-2004, 12:14 PM. If you’ve browsed for prescription or non-prescription frames you know both types of lenses offer their own benefits and disadvantages. 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. Glass is the most vulnerable in this category. Is one really better than the other? Borosilicate Glass vs. Polycarbonate Outdoor Lights: The Verdict. (Few people now use glass, which is heavy and breakable.) Plastic lenses are impact resistant, making them a better choice … It is our hope, that the information above will help guide your next purchase of Randolph eyewear. If you’re the type to have a pair of glasses for a long period of time, then glass lenses are a better choice. They have similar properties, as well as different advantages and disadvantages. 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. Like polycarbonate lenses, lenses made of Trivex are thin, lightweight and much more impact-resistant than regular plastic or glass lenses. Each lens offers advantages and disadvantages. Glass lenses are by far optically clearer than polycarbonate lenses. Polycarbonate lenses are thin, lightweight, and incredibly impact resistant. Trivex lenses are made from a urethane-based monomer. Polycarbonate lenses advantages and disadvantages, Each lens offers advantages and disadvantages. To optimize your experience we use cookies. Eyeglasses – St Michel in Silver and Prism in Cafe Glace. Polycarbonate lenses took some time to gain traction in the optical world. 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. 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. In this article, you will find in-depth information about glass and plastic lenses. 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. Glass lenses are the traditional ones, having been used for some time now, while plastic lenses are relatively newer. These lenses are not scratch resistant like glass, so it does need an additional scratch-resistant layer. Making the Correct Choice: Acrylic vs Polycarbonate Luminaire Lenses. Glass and polycarbonate lenses. 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 lenses were first introduced into the optical world through safety glasses. Lightweight and thinner than glass lenses, polycarbonate is more comfortable to wear for long periods of time. So, while ⅛” of polycarbonate may be more shatter-resistant than ⅛” of glass, some manufacturers may cut costs by using thinner polycarbonate. These advantages include increased light filtration, impact resistance, increased strength, and improved weight and viscosity flow characteristics. Lens materials affect thickness and weight. Plastic lenses come in more colors and larger sizes than glass lenses… Polycarbonate lenses are more than just durable: they also have 100% protection from the sun’s UV rays! It comes down to your needs and comfort level when choosing a proper lens. At EyeBuyDirect, you can get a pair of polycarbonate lenses with your choice of frame for as low as $18! Plastic vs Glass lenses. This kind of UV protection is an inherent part of the material they’re made out of, which glass and plastic lenses lack. Polycarbonate lenses are not as clear as glass lenses, but the difference is not really significant to most people. Plastic lenses are much lighter than glass lenses, and are less likely to shatter. Try not to use your shirt! 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. By visiting our website, you agree to our Privacy Policy. Polycarbonate is the worst performing commonly used plastic, having the lowest value of 30. To help your eyewear last, the best rule to live by is: In the case or on your face! The strength of polycarbonate is largely dependent on its thickness. This is somebody who has a -5.00 prescription. Even plastic shaded lenses on the cheap hoods. Answered by Dr. Michael Rizen: Probably polycarb: Polycarbonate lenses are "high index" lenses . The higher the number, the thinner the lens. Glass tends to be a heavier material 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. At EyeBuyDirect, you’ll find polycarbonate lenses built into stylish and high-quality frames at affordable prices. The higher the refractive index, the thinner the glass. They are more than 10-times more impact resistant than your average plastic or glass lens. It was developed in 2001 by PPG Industries as an alternative to polycarbonate. What is the best and proper setup for glass under the welding hood? Polycarbonate Lenses: Pros & Cons. However, thinner lenses won’t necessarily mean they will weigh less. Inspired by the earlier post about cleaning the hood lenses. Who is the winner of polycarbonate lenses vs. glass lenses? Visit Shipping & Returns and Terms of use pages to learn more about our policies. Trivex lenses are made from a lightweight, impact-resistant material. Plastic lenses are also known as organic lenses. Of course, if you’re unsure of which to choose, you can always contact our support team for advice. Glass tends to be a heavier material than polycarbonate lenses. And reasonable prices mean it’s realistic to buy more than one pair without going over your eyewear budget. First of all, there are glass and plastic materials. 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. Polycarbonate lenses are a version of plastic lenses that provide impact and scratch resistance. Plastic lenses are less reflective than glass lenses, making them clearer and less prone to glare. Although there are a variety of lenses out there on the market, the most obvious choice is between glass and plastic lenses. "polycarbonate vs plastic lenses best for high myope?" With hi-index lenses, vision can be corrected with less material, making the lens much thinner. 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. I see both plastic and glass clear lens material at the stores. The choice is up to you. Today polycarbonate is the standard lens material for many online eyeglass retailers, and they are standard in all children’s glasses, safety glasses, and sports goggles. During the manufacturing process, commonly known as injection molding, those small solid pellets are heated until they completely melt. Polycarbonate is 10 times stronger. 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. Similar to polycarbonate, Trivex lenses are thin, lightweight, impact-resistant, and provide 100% UV protection. If you really can’t figure it out or want to be absolutely sure before using a product … This is why glass is primarily used in microscopes, binoculars, telescopes, and cameras. Can Color Blind Glasses Help You See Color. Weight: A lens weight becomes noticeable when wearing your frames for long periods. Choosing the lens for your frames relies on you. Plastic Vs Polycarbonate Lenses- Which One Is Better? Polycarbonate lenses have a built-in UV protection by nature, and they also easily allow for special treatments to be added to the lenses to protect your eyes. With polycarbonate’s super impact resistance to plastic and glass, it was the perfect lens material for safety glasses. “Good enough for fighter pilots, good enough for us.”. When compared to standard glass, both acrylic and polycarbonate materials provide many benefits that standard glass does not afford. 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. All blog comments are checked prior to publishing. It’s strongly recommended with polycarbonate or high-index lenses, which reflect more light than basic plastic CR-39 or glass lenses. A new, brand-name type of lightweight and resistant plastic has hit shelves: Trivex. 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