With a higher index of refraction and lower specific gravity, polycarbonate lenses are thinner and lighter than their plastic and glass counterparts. Inherent UV protection and wide product availability also contribute to its popularity.
One of the chief complaints about polycarbonate is its optical quality or lack thereof. With an Abbe value of 29, polycarbonate's chromatic aberration is the highest of any lens material in use today. Furthermore, some dispensers are hesitant to use polycarbonate in drill-mount frames because of its lack of tensile strength and likelihood of cracking around drill holes. We suggest putting the material through your own tests and deciding for yourself. While Trivex has a slightly lower refractive index 1.
Like polycarbonate, Trivex also has inherent UV protection. This is especially the case for those with higher prescriptions, as the severity of the aberrations tends to increase with stronger prescriptions. It is recommended that you choose your frames and lenses for glasses based on what you need them for. The more information you have, the more informed your choice can be. The refractive index of a material is a number that measures how well the material refracts and bends light, which depends on how fast light travels through the material.
The higher the refractive index of a material, the slower light moves through it, which results in a greater bending refracting of light rays. The refractive index of polycarbonate lenses is 1. Lenses cannot be considered in isolation, however, as all lenses must be placed within suitable frames.
Wearing regular eyeglass frames during physical sports or outdoor activities is not recommended because the frames themselves can easily break or fall from your face. In this regard, you need to decide whether polycarbonate or Trivex lenses are best suited to the frames you have, or wish to purchase. Both polycarbonate and trivex lenses block the harmful UV rays without requiring specific UV filtering lens coatings. As discussed, trivex lenses offer a superior optical experience to polycarbonate lenses because of their high Abbe value.
In situations where clarity is key, you may wish to invest in Trivex lenses for their higher Abbe value, and so increased visual clarity. Additionally, if you have a stronger than average prescription you may wish to invest in Trivex to avoid annoying abnormalities in your daily vision, such as haloed lights or distorted peripheral vision.
Cleaning your glasses not only ensures clear vision but also keeps bacteria-caused infections at bay. Follow these steps to clean and sanitize your eyeglasses. For more information, speak to our expert opticians or check out our Arise Clarity HD Lenses for a great option for prescription glasses.
The Lenses offer unbeatable clarity, comfort and durability for any situation. If you have any further queries, feel free to ask our optician! Find out all about our online optician Caitlyn here. Remember me. Don't hesitate to Contact us. Get personalized eyewear recommendations with our style finder and find the perfect pair for you.
Order Tracking. Shipping Information. How to buy online. Vision Insurance. Optical Center. Cheap Glasses. How to Measure PD. Virtual Try-On. Best Price Guarantee. Student Discount. Military Discount. Size Guide. Lens Scanner. Shop Our Instagram. Shop By Color. Photochromic lenses are available in both materials. The cost of polycarbonate and Trivex lenses can vary considerably, but many optical stores charge more for Trivex lenses than polycarbonate lenses.
Your professional optician can discuss the pros and cons of polycarbonate and Trivex lenses so you can decide which lens material is the best choice for your needs and budget. Polycarbonate and Trivex lenses are much more impact-resistant than regular glass and plastic lenses including other high-index lenses because these lightweight lens materials are relatively "soft" — which means they can absorb energy without lens fracturing.
This flexibility also means polycarbonate and Trivex lenses need a scratch-resistant coating to prevent surface scratches. Today's modern scratch-resistant coatings can make the surface of polycarbonate and Trivex lenses nearly as hard as glass.
Most eye care professionals offer a lens warranty to protect your lenses against scratches for a specified period of normal use. Ask your optician for details. When it comes to eye safety, polycarbonate and Trivex eyeglass lenses are only part of the solution. For the best eye protection at work and during sports, be sure you also invest in high-quality safety frames or frames designed specifically for sport eyeglasses.
Regular eyeglass frames are not rated for use as safety glasses and typically don't provide the type of eye protection needed for sports. Which is Better? Eyeglass Tyler goes over the pros and cons of each lens material and answers the question of which one you should get.
Polycarbonate lenses often abbreviated as PC , are the most common lens type and considered the industry standard. Polarized, progressives, whatever you may need, there should be no trouble with a polycarbonate lens.
Polycarbonate is also relatively inexpensive. To measure the clarity of various lens materials, we use something called the Abbe value. The higher the number, the clearer the lens. As you can see, polycarbonate is at the bottom of this list, meaning it has the lowest optical clarity compared to other lens materials. Trivex is a great alternative to polycarbonate lenses.
Trivex also has a higher tensile strength.
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