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. 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. The different types of lens material vary in their weight, flexibility, durability, thickness, scratch resistance, etc. They also have an impact on your vision, comfort, and appearance.
This then makes it crucial for you to make the right decision or risk ending up with an ineffective item. In this article, we are going to be discussing specifically plastic and polycarbonate eyeglasses and the major differences between both lens materials. The first lightweight Plastic eyeglass lens made its debut sometime in Since then, plastic has become a popular and widely used material for making eyeglass lenses.
This is primarily because of its high optical clarity, low cost, impact-resistant, and durable property. Since the introduction and use of Plastic lenses also known as CRit has sealed its mark as the most preferred choice in the optical industry.
Polycarbonate lenses were introduced sometime in the s by the Gentex Corporation. This new eyeglass lens material had a high index of refraction, making it to be the lightest and thinnest lens material available then. Polycarbonate lenses rose to critical acclaim due to its durable, and additional properties. It was seen as a lens material with lots of potential for optimal optical success though it did not gain traction due to three main issues:. The unique property of polycarbonate lenses meant that surfacing was going to be an issue.
It took manufacturers some time to develop surfacing equipment that could be used to surface a polycarbonate lens. Eventually, effective solutions to these obstacles were put forward in addition to the refinement and enhancement of polycarbonate lenses into the high-quality material widely used today. Polycarbonate lenses are gradually taking over a significant portion of the optical market share once dominated by plastic lenses.
This is mainly because of its lighter weight, impact-resistant, thinner and more scratch-resistant properties. Now that we have a brief overview of polycarbonate lenses let us consider some of its advantages and disadvantages. A significant percent of harmful ultraviolet rays from a variety of sources are blocked by these lenses. The decision between a plastic or polycarbonate lens should be made based on personal preference, cost, weight, durability, impact, and scratch resistance.Both polycarbonate and Trivex lenses are thinner and lighter than regular plastic lenses.
AR coating eliminates distracting lens reflections that can interfere with vision, particularly when driving at night or in other low-light conditions when glare sources are present.Conan exiles moon dust
Polycarbonate was developed in the s for aerospace applications and is currently used for the helmet visors of astronauts and for space shuttle windscreens. Eyeglass lenses made of polycarbonate were introduced in the early s in response to a demand for lightweight, impact-resistant lenses.
Since then, polycarbonate lenses have become the standard for safety glasses, sports goggles and children's eyewear. Because they are less likely to fracture than regular plastic lenses, polycarbonate lenses also are a good choice for rimless eyewear designs where the lenses are attached to the frame components with drill mountings.
Most other plastic lenses are made from a cast molding process, where a liquid plastic material is baked for long periods in lens forms, solidifying the liquid plastic to create a lens. But polycarbonate is a thermoplastic that starts as a solid material in the form of small pellets. In a lens manufacturing process called injection molding, the pellets are heated until they melt.Remove Scratches from Eyeglasses and sunglasses Lenses Using Toothpaste
The liquid polycarbonate is then rapidly injected into lens moulds, compressed under high pressure and cooled to form a finished lens product in a matter of minutes. Despite its many advantages, polycarbonate isn't the only lens material suitable for safety applications and children's eyewear. Trivex lenses were introduced in by PPG Industries. Trivex lenses, however, are composed of a urethane-based monomer and are made from a cast moulding process similar to how regular plastic lenses are made.
This gives Trivex lenses the advantage of crisper optics than injection-moulded polycarbonate lenses, according to PPG.
Here is a brief comparison of polycarbonate and Trivex lenses to help you decide which lenses might be best for you:.
Polycarbonate has a higher index of refraction than Trivex 1. Trivex has a lower specific gravity than polycarbonate, making Trivex lenses about 10 percent lighter than polycarbonate lenses. Trivex lenses have less internal stress and may produce sharper central vision than polycarbonate lenses.
Trivex lenses have a higher Abbe value and may produce sharper peripheral vision with less chromatic aberration than polycarbonate lenses. Polycarbonate lenses are available in a wider variety of lens designs e. The cost of polycarbonate and Trivex lenses can vary considerably, but many opticians charge more for Trivex lenses than polycarbonate lenses. Your optician can discuss the pros and cons of polycarbonate and Trivex lenses, and help you decide which lens material is the best choice for your needs and budget.
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Anti-reflective and anti-glare coatings for glasses lenses. Photochromic light-adaptive lenses for glasses and sunglasses.Ask doctors free.
Top answers from doctors based on your search:. Michael Rizen answered. Probably polycarb: Polycarbonate lenses are "high index" lenses. They are often used in high myopes to allow for the glasses to be thinner and lighter. They do have m Read More. Send thanks to the doctor. Get help now: Ask doctors free Personalized answers.
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Mabel Obeng answered. No: I wouldn't worry too much about that. Do clean if off thoroughly before using. Richard Bensinger answered. A little more: Polycarbonate lenses have a higher index of refraction and can be made a little thinner which lightens the eyeglasses and makes them more comfortable. Michael Santoro answered. Safety glasses. Pamela Pappas answered. Hit by ball? Take care out there! Not easily: Scratches in polycarbonate lenses involve the removal of plastic in the scratch.
To smooth it out you would need to grind this away which would alter Ilan Cohen answered. No: There are other materials which can be used, trivex for example. Robert Killian answered. No worries: Nope. Your body cannot digest it and it will pass with your stool soon. View 2 more answers. Richard Scartozzi answered.Info
See below: Take them to your optician and ask. They will be able to help you. Benjamin Rubin answered. Snap and crack: For the same size lens Plastic is heavier. Polycarbonate will be uv For those 2 you probably can't tell. Plastic snaps or shatters went bent past People also searched for: Trivex lenses vs polycarbonate. Glass lenses vs polycarbonate. How to repair scratches on a plastic eyeglass lens.
Best way to clean polycarbonate lenses. Iud plastic vs.Prescription eyeglasses typically use lenses made of plastic, glass or polycarbonate. Polycarbonate lenses offer the benefit of safety and thinness but typically lack the optical clarity of regular plastic lenses. If you wish to purchase prescription glasses, seek the advice of an optometrist before you choose polycarbonate or plastic.
Refractive index refers to the rate at which light bends as it passes through the plastic of the lens. The higher the refractive index, the thinner the glass. High-index plastic lenses have a refractive index between 1. Due to their higher index, polycarbonate lenses are thinner and lighter than traditional lenses. Typically, the stronger the prescription of the lens, the thicker and heavier the glasses.
Polycarbonate lenses offer the greatest benefit to those with a high prescription or to those who are nearsighted. Polycarbonate lenses offer percent protection from UV light and radiation. Ordinary plastic lenses offer minimal protection from UV radiation.
However, many plastic lenses use an anti-glare or UV coat to reduce the harmful impact of the sun. Often, optometrists recommend polycarbonate lenses when safety is an issue.
Polycarbonate lenses are 10 times more impact-resistant than ordinary plastic lenses. Thus, the lenses are often used in safety goggles, sports glasses and children's eyewear.
Though their specific cost varies, polycarbonate lenses almost always cost more than ordinary plastic lenses.
Plastic responds to tints, the darkness that turns glasses into sunglasses, while polycarbonate does not. Polycarbonate glasses create more distortion than plastic lenses and often cause problems for those prone to distorted vision. Further, plastic glasses scratch less frequently.14mm hex socket 3/4 drive
Breann Kanobi has worked as freelance writer since Based on your prescription, frame selection, and lifestyle needs, your VSP network doctor can recommend the best lens materials for you. Here is a quick guide on some of the materials you may hear about at your appointment. Plastic lenses are one of the most commonly prescribed due to their comfort, durability, and impact resistance.
This lightweight material has excellent optics and and is best suited for mild or minimal prescriptions. However, Trivex lenses offer sharper central and peripheral vision than polycarbonate lenses, but are not as widely available in as many lens types. This hi-tech plastic lens is designed for people with stronger prescriptions.
Vision can be corrected with less material, making the lens much thinner, lighter, and more comfortable for long-term wear. Log in or create an account to view your coverage and start using your benefits today. Find a VSP network eye doctor near you! Choose a Premier Program Location to get the most out of your benefits. Members Members. Eyewear and Wellness. Lens Materials. Check Your Coverage. Find a Doctor. Contact Contact Us. Call Member Services. Email Member Services.
Plastic Vs Polycarbonate Lenses- Which One Is Better?
Notice of Privacy Practices. Patient Rights. Terms and Conditions. VSP Direct. VSP Global. Eyes of Hope. International Sites. About This Site. About VSP. Become a VSP Provider. Frame Gallery.Polycarbonate lenses are distinguished by their resilient, shatterproof, and built-in scratch-resistant properties. Impact resistance sets them apart from other eyeglass lenses. This makes them an optimal choice for people with active lifestyles who are more prone to dropping or scratching their eyeglasses.
All standard coatings, such as anti-reflective coating, scratch-resistant coating, and tints can be applied to these lenses. All eyeglass wearers should weigh both the pros and cons of polycarbonate lenses before making any purchasing decisions.
Your eye doctor can also provide more information on any specific questions you may have. Designer brands for less. Free lenses. Find your next pair of glasses or contacts at GlassesUSA. Polycarbonate lenses tend to be more expensive than traditional plastic glasses and other eyewear, including some contact lenses.Neetha ashok first serial
In fact, because of the high index plastic lens material, they can cost about two times more than plastic lenses. Eye safety is important, but it goes beyond your prescription.
Polycarbonate lenses also protect from harmful UV rays. The lenses have a natural blocker to prevent ultraviolet radiation from damaging your eyes.
The UV protection, coupled with their durability, makes polycarbonate lenses ideal for people who tend to be active outdoors.Lumion error creating texture type 90
Polycarbonate lenses are different from glass or plastic lenses because they are thinner, lighter, and 10 times more impact-resistant. They provide extra safety for your eyes without sacrificing comfort or fit.Bianchi oltre xr3 disc ultegra
Because of the many advantages to polycarbonate lenses, they generally double in price from glass or plastic lenses. An eye exam from your optician will help you to determine your eye health and the best lens type for your eyewear.
If you do scratch your polycarbonate lenses, however, you may have a warranty. Some polycarbonate lenses come with a warranty that will replace or repair your scratched lenses for free. The same goes for removing scratches on most eyewear. DIY scratch removal can leave your lenses in worse condition if not done properly. Some toothpaste may be abrasive and can scratch the lens further.Alex from My Vision Box and I want to welcome you to our weekly educational video.
I hope you enjoy it. Hello, today we are going to be talking about different lens materials. We are going to be comparing Plastic to Polycarbonate. Lets talk about the 2 most popular options. Well, plastic lenses are our basic lens. The polycarbonate lens is an upgraded option. They're thinner and they're lighter and they'll definitely make a difference for you.
The other thing is, they are legally required for anybody under the age of 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. Not only that, but look at the difference in thickness you are going to get. This is somebody who has a So imagine your glasses now, having these really thick, heavy lenses or these thin and light lenses. I think you will definitely notice that difference.
That is why recommend those for anybody over a power of 1. It is a little bit more pricey for the polycarbonate, but is worth every penny because you are getting a much better lens. Shatter proof, thinner, lighter material and just feels better on your face because you have less weight there. So for anybody getting glasses, I strongly strongly recommend getting polycarbonate lenses.
I recommend that to everyone of my patients in my practice, I would recommend it to everyone of our patients who is buying on our website. So really consider doing the upgrade for the polycarbonate lenses. Thanks for listening and I hope you enjoyed the video and I'll see you on the next one.
Polycarbonate lenses: Advantages and disadvantages
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