Up to 10 times more impact resistant than standard plastic eyeglass lenses, polycarbonate is really a first-rate option for people with an active lifestyle. Developed in the 1970s, polycarbonate has been protecting eyes for a long time.
1.60 high index lenses start the unofficial beginning of “true” high index lenses with a slightly higher light refraction index than that of Trivex (1.53) and polycarbonate (1.59). High index lenses can be found in a variety of indices ranging from 1.53 to 1.74, with “true” high index starting at an index of at the very least 1.60. As of this index level, you will begin to reap the benefits of a significantly thinner lens, once we mentioned briefly above. James joined IcareLabs in 2005 and contains over 30 years of optical experience.
Also, remember that at last it all depends on your personal choice and you should pick the lens accordingly. In general, both materials are excellent for eyewear applications.
Trivex Eyeglass Lenses
UV Protection—Trivex offers outstanding UV protection, blocking completely of UV rays all the way to 395 nanometers, well beyond ANSI standards. With the FDA impact standard now over 40 years old, passing the drop ball test means delivering only the minimum in lens protection.
We can also help you together with your non-prescription eyeglass needs aswell. This is the measurement of chromatic aberration that causes distortions in the lens such as halos and fringes around lights and blurred vision in the periphery of the lens. By having a higher Abbe value, Trivex exceeds in optical performance. For example, the most recent Transitions technology or polarized color option will undoubtedly be a choice for polycarbonate lens material first. Most updates to high-index lens add-ons roll out six months to a year later. If you’re like most customers, less weight will be more vital that you you than slightly thinner lenses.
Trivex Vs Polycarbonate
While it’s slightly lighter than polycarbonate, in addition, it has a slightly lower index of refraction. The big advantage of Trivex over polycarbonate is its better optical quality, which means your vision is sharper. As a rule of thumb, for those who have a strong prescription, high-index is the way to go. It’s up to 10X more impact-resistant than high-index lenses and is which means ideal lens material for sports protective eyewear and children’s glasses. In comparison with other lens materials, high-index nor polycarbonate are known to supply the ultimate in optical clarity. The true winners are materials such as for example Trivex, CR-39 and Crown Glass. Optical clarity;Trivex lenses have an increased Abbe value and could produce sharper peripheral vision with less chromatic aberration than polycarbonate lenses.
- Due to this most high index lenses come with an anti-reflective coating as a typical option.
- The Abbe value is essential because it measures chromatic aberration .
- They will also function as only solution to fit many strong prescription lenses into eyewear frames properly.
- When you attend order, consider specifying Trivex instead of other options for prescriptions in the range between -3.00D and +3.00D.
Trivex lenses have a higher Abbe value than polycarbonate since it is made up of a urethane-based monomer, which refracts less light. When lenses are made of materials with less Abbe value, a particular deviation depending is expected.
How much darkening that most photochromic lenses undergo depends upon just how much UV radiation they are exposed to. There’s a simple technique to differentiate between your two. Try to edge by hand; if it has strips mounted on the edge, it’s polycarbonate. Hit it with a hammer and when it doesn’t break and bounces, it’s a polycarbonate. If the optics are not as clear as glass, it’s polycarbonate.
HD lenses, also called digital lenses, are highly customized lenses that deliver top quality vision than traditional lenses. Rimless frames tend to be more expensive than full-frame glasses. Greater than a decade has passed since the introduction of Trivex into the optical market.
High index lenses bend light more efficiently than regular glass or plastic lenses, so less lens material must correct your vision. Developed in 2001, Trivex lenses are constructed from a newer plastic that shares many properties with polycarbonate. While also thin, scratch-resistant, highly impact-resistant and lightweight, Trivex lenses may be slightly thicker than polycarbonate lenses. For some vision prescriptions, they could provide a better visual clarity and more scratch resistance than polycarbonate lenses.
The tensile strength of Trivex makes it highly resistant to cracking around drill holes. Actually, Younger Optics guarantees its Trivex products for life, against stress fractures and drill mount cracking. Anti-reflective coating reduces lens reflections and allows more light to enter the eye for better night vision. Regardless of the lens material, eyeglass lenses with AR coating transmit over 99% of available light to the eye.
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