HI materials

High-index plastic lenses are now available in a wide range of refractive indexes, higher than 1.5 up to 1.74.

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HI material: 1.6: Recommended for a wide range of designs and purposes and for optical powers ranging from nearsightedness to presbyopia. Minimal chromatic aberration in the visual periphery and an ideal balance of properties such as impact resistance and thermal resistance. 1.67: These lenses are thin, light, and high impact resistance. The MR 7 TMoffers good tintability , ideal for sunglasses. The MR 10 TM offers superb thermal resistance suitable for high challenging temperature conditions. 1.74: It is suitable for users looking for ultra-thin lenses.

Lens Index and Thickness


  • 1.5
  • 1.53
  • 1.56
  • 1.61
  • 1.67
  • 1.74
SKU: N/A Category:
Additional Information

1.5, 1.53, 1.56, 1.61, 1.67, 1.74

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Lens index and thickness profile

Lens Index and Thickness

Features & Benefits 1.5 Trivex 1.53 1.56 1.6 1.67 1.74
Specific Gravity 1.32 1.11 - MR6: 1.34
MR8: 1.80
MR7: 1.35 MR10: 1.3 1.47
Thickness - - - 20% lighter than 1.5 35% lighter than 1.5 40% lighter
Impact Resistance Good Excellent - Very Good Good Good
Tintibility Very Good - Very Good Good Very Good -
Abbe Number 58 44 - MR6: 36 MR8: 41 32 32
Reflectance Percentage % 7.7 8.4 - 10.1 11.8 13.6


An advanced lens treatment that protects from natural and artificial light sources such as computer displays, TVs, smartphones, tablets, and more.


Digital devices and displays emit a high-energy, visible blue light. Thanks to advanced lens substrates and coating technology, PRIVO BRF locks up to 98% of harmful blue light between 400nm – 435nm, up to three times more than standard clear lenses.

Why is it important for your eyes?

Tired and dry eyes, eye strain, insufficient visual contrast, and headaches are symptoms of prolonged blue light exposure; all of which increase the risk of macular degeneration and retinal disease.

Children are more susceptible to overexposure of blue light than adults because their eyes are not fully developed and are more transparent. This results in less protection from the harmful effects of UV and blue-violet light.

Exposure to Blue light during the day


Decreases in melatonin cause a disruption of the sleep cycle.


Eye strain, tired eyes, dry eyes, and might be symptoms of long exposure to blue-violet light.


Part of the blue light was recently identified as harmful to our retina. It can accelerate the appearance of AMD (Age-related Macular Degeneration).


UV light is dangerous to our eyes as they are to our eyes as well. Its effect accumulates over our lifetime, accelerating eye aging and the appearance of the eye’s lens Cataract.


TRANSMATIC Photochromic lenses accommodate a fast color change whenever you go from indoors to outdoors, and vice versa. Plus, the lenses reduce glare and filter out harmful UV 400 light. TRANSMATIC lenses also offer optimum vision, comfort, and protection all day long.

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How do TRANSMATIC lenses work?

TRANSMATIC lenses contain photochromic dyes, which cause the lens to darken when exposed to UV rays from sunlight. Once the UV light diminishes, the lens fades back to clear. When outdoor light conditions change, the lens’s level of darkness adjusts as well, creating just the right amount of tinting and allowing the right amount of light to enter the eyes. The higher the UV, the darker the lens gets. The lower the UV, the lighter it becomes.

Features & Benefits
  • The TRANSMATIC UV filter blocks 100% of UV 400 rays
  • Highly recommended for those who spend much of their time both in and outdoors
  • Suitable for all age groups and prescriptions

Vast materials available in brown and grey. Contact us for material availability.



Did you know photochromic lenses are only designed to filter harmful UV400 light but not harmful blue rays? Overexposure to blue rays can be dangerous and may even cause retinal problems in the long run.

Introducing TRANSMATIC BRF lenses. These lenses work on filtering both damaging UV400 and harmful blue-violet rays, adding more value to your eyewear. BRF substrate is built into the lens material and is the latest technology in filtering harmful blue-violet light, complete with full UV protection.

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TRANSMATIC BRF LENSES give you more protection.

Whether TRANSMATIC BRF lenses are clear or dark, they give you additional protection.

  •  100% of UV protection.
  • Protects your eyes from harmful blue-violet light.

Contact us for available materials and colors.


Your glasses need to be strong enough to withstand unexpected impact and prevent breakage while protecting you from the sun’s harmful UV radiation.


Trivex gives you peace of mind by providing high-impact resistance when doing strenuous activities like playing sports or working in a hazardous environment. Durable and stress-free, Trivex is an excellent choice for rimless (or drill mount) and lightweight fashion frames that rely on lenses for structural rigidity. Trivex also blocks 100% of harmful UV rays, protecting your eyes from various eye complications.

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Who should wear lenses made with Trivex?

Anyone with an active lifestyle who wants:

  • Crisp, clear vision
  • Lightweight glasses that provide maximum comfort
  • Strong and protective eyewear
  • Glasses that block 100% of harmful UV light

Equipped with impact resistance and superb optical performance, Trivex is also a perfect lens solution for children. It gives them the necessary protection without compromising visual performance for reading and schoolwork.


Light travels in all directions and reflects randomly off shiny surfaces such as snow, cars, and buildings, producing glare. Glare reduces vision quality as the eye’s perception of color and contrast changes. Hence, Polarized lenses provide better vision and comfort when outdoors

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Polarized lenses Features and benefits:

  • Neutralize excessive brightness and remove all unwanted visual noise, including the blinding glare of sunlight.
  • Improve color contrast, depth perception, and visual acuity for better eye comfort and safety.
  • Block 100% of harmful UVA & B rays.

Polarized lenses are available in single vision and progressive lenses.

Polarizing sunglass lenses by PRIVO in the standard colors of Dark grey, Dark brown, and Dark greenish-black.
Dark Gray
Dark Brown

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