How thick is a trivex lens?

These types of design also increase the peripheral view by removing distortion. Trivex is probably the lightest materials used for lenses. The Abbe value is important because it measures chromatic aberration . Depending on the degree of chromatic aberration, images viewed through eyewear can happen more or less distorted. At Eyeglasses.com, we only use labs that employ a large staff of experienced technicians, performing a large volume of lenses every day.

High index lenses are plastic lenses with an increased index of refraction. This is the number that measures how well the material bends light. The higher the number, the less amount of material is needed to bend the light. Therefore, the same prescription in a higher index lens will be thinner than in
Hoya designed its Trivex-based solutions to be super-light and sturdy for active living. As the lenses are strong and robust, they’re suited to different mounting styles. Lenses made from Trivex are really resistant to common problems like being dropped or scratched. They are also very resistant to unusual problems, like several chemicals. They are able to resist acetone, which few plastics can resist, including polycarbonate. Acetone is really a common chemical in nail polish removers and some other solvents which may be around your house.

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Chromatic aberration is really a distortion of the image due to the inability of the lens to target all colors onto the same focal point. This results in the perception of undesirable color fringes when viewing objects for most people.

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• Lenses, high index lenses are strong and a good option for drill mounts.
• Polycarbonate and Trivex lenses are also significantly lighter than regular plastic lenses, which makes the glasses convenient — specifically for strong prescriptions.
• This exacting method produces lenses with very low internal stresses.

The most notable priority of any eyewear would be to give you good eyesight. The first choice you make with your eyecare professional is the type of lens which will satisfy your visual needs.

Optical Materials

Polycarbonate is really a thermoplastic that starts as a solid material in the form of small pellets. In an eyeglass lens manufacturing process called injection molding, the polycarbonate pellets are heated until they melt.

Due to their durability, they work very well in rimless eyeglass frames. The lenses provide 100% UV protection, to greatly help prevent eye problems such as macular degeneration and cataracts. On the downside, they might need scratch-resistant coating, cost more, and may affect peripheral vision clarity. An option with high index lenses can be an “aspheric” design, that may donate to a thinner lens appearance and profile. Aspheric means that instead of having a round, or spherical curve on the front surface, the curve gradually changes from the center of the lens to the periphery of the lens.

This is a measurement of chromatic aberration that triggers distortions in the lens such as halos and fringes around lights and blurred vision in the periphery of the lens. With a higher Abbe value, Trivex exceeds in optical performance. You might have your Hoya Phoenix lenses in rimless drill mounts, whether for cosmetic or practical reasons. Semi-rimless frames are also an ideal choice for those who enjoy the extra comfort and minimalist feel.
This is the specialty material that’s recommended as an alternative for polycarbonate lenses. It is used to make rimless glasses, and in addition for prescription sunglasses. Trivex includes a slightly lower refractive index (1.53 compared to 1.59).