The glare from the lenses can be cosmetically unappealing. Because of this most high index lenses come with an anti-reflective coating as a typical option. High index plastic is thinner and more lightweight, and will often have more options in terms of lens colors and sizes. Trivex is slightly more optically clear and impact resistant than high index.
- Next, take time to inform your clients
- However, Trivex lenses have a much higher abbe value (43-45) vs. polycarbonate making it much better in optical clarity with fewer chromatic aberrations.
- Cleaners such as for example Windex and alcohol are safe to use on Trivex.
- Poly material can be more lightweight
This is simply not the case when the product is scratch coated or AR coated. Their study confirmed qualitatively that polycarbonate lenses have a much higher impact resistance that Trivex lenses. Additionally, Trivex’s light transmittance is 91.4 percent, directly affecting the clarity, brightness, and crispness of one’s vision when wearing this lens material. It is the highest degree of all lens materials for glasses. A lens with an increased index of refraction tends to reflect light a lot more than standard CR-39 plastic or glass lenses. The extra reflections are usually quite bothersome for the wearer especially at night and while utilizing a computer monitor.
They can resist acetone, which few plastics can resist, including polycarbonate. Acetone is a common chemical in nail polish removers plus some other solvents that could be around your house. CR-39 lenses have a higher Abbe value of 59.3 making them the lenses with minimal distortion from dispersion/chromatic aberration. The refractive index of a basic plastic lens (CR-39) is 1.498 and therefore light travels 1.498 times faster in a vacuum than it does through the plastic lens. Eyeglass lenses are often categorized by their refractive index . /eyeglass-stores/how-to-get-the-best-eyeglass-lenses/.
For example, the latest Transitions technology or polarized color option will be an option for polycarbonate lens material first. Most updates to high-index lens add-ons roll out six months to per year later. However, thinner lenses won’t necessarily mean they’ll weigh less.
Polycarbonate Vs Trivex Eyeglass Lenses
Trivex lenses, however, are comprised of a urethane-based monomer and so are made from a cast molding process similar to how regular plastic lenses are created. Since that time, polycarbonate lenses have become the typical for safety glasses, sports goggles and children’s eyewear. Eye safety is really a sensitive topic, both literally and metaphorically. Polycarbonate and Trivex lenses are undoubtedly the best options to consider for eyeglasses, sunglasses, and sportswear. They’re safe, lighter, thinner, UV-resistant, and 20 times more powerful than in comparison to traditional glass with regards to impact strength. The mix of these fantastic properties makes polycarbonate and Trivex ideal selections for children’s glasses and safety glasses aswell.
- are getting the very best plastic lens, installed in an excellent controlled, ISO 9000 lens-making laboratory.
- In the year 2002, PPG industries developed a chemical process with material to be specifically used for eye lenses.
- Eyeglass Tyler explains the pros and cons of every lens material and answers the question of which one you should get.
- They are able to still break, therefore official safety glasses should be worn for eye-hazardous jobs and sports.
- Trivex is also a lot more resistant to chemicals than polycarbonate.
In fact, most protective eye gear and sports goggles are made from polycarbonate lenses, even though no vision prescription is necessary. Furthermore, polycarbonate boasts built-in protection from the sun’s UV rays, making this an ideal lens material for time spent outdoors. These premium lenses are the best in optical clarity, improved peripheral vision with less distortion, more generous reading areas. They are uncomparable to progressive lenses offered by discount opticals. They are the only types of lenses that will fit into today’s more fashion-oriented smaller frames. Where Trivex most notably sticks out to the end-user is its optical clarity.
Be Your Vision
The lightest lens choice for the energy range from -3.00D to +3.00D, which encompasses 85 percent of most prescriptions. When dispensed in aspheric or a good free-form design, prescriptions may be made even lighter. Trivex was originally developed for military use by PPG Industries in 2001. The business then took this ultra-strong, lightweight material and applied it to consumer optical needs. Even so, clear vision with several safety features is important to numerous glasses wearers. So some people choose to spend of pocket for Trivex lenses.
Trivex alongside polycarbonate is great for rimless frames and those frames requiring drill mount screws through the lenses. They can also be coated in additional anti-scratch coating for increased protection.
Edging Lenses: Would You That?
NVISION® content is medically reviewed by a licensed Ophthalmologist, Optometrist, Surgeon or Doctor. These vision experts ensure this content is fact-based and up-to-date. In International Relations from the University of California, Irvine. After graduation, he made a decision to live abroad in Spain.
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