HIGH ON THE 1.67 SPECTRUM

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Lightweight and durable, 1.67 high-index lenses are prolific these days.

A high-index lens material is considered by the industry to be one with an index of refraction of 1.59 and up. The main benefit of high index lenses as compared to standard plastic lenses is that they have a thinner lens profile. 1.67 high index lens material has become very popular in the last number of years, in particular with rimless eyewear because it’s a material that holds up well.

SOMETHING FOR EVERYONE
Today lens manufacturers make 1.67 high-index lenses in a host of formats so just about any patient can reap the benefits of light weight, thin profile, and impact resistance. Patients choose a frame, the ECP dispenses a 1.67 lens, and, bingo, they walk away with a clear and comfortable pair of glasses.

Chances are the patients don’t know their lenses could have been any different but will remember the durability and comfort factors of these the next time they get new glasses.

PREMIUM MATERIAL
“1.67 is a very durable lens material,” says Lynne Roberts, product marketing manager for Signet Armorlite, Inc., which is known for KODAK Unique progressive lenses and the Navigator line. “That’s why a lot of doctors use it. It’s lightweight, it accommodates a thinner lens profile, and it drill-mounts well.” 1.67 lenses come in so many configurations that doctors generally assess other factors before prescribing a 1.67 lens, states Roberts. “We have eight different 1.67 offerings in just progressives alone,” she says, noting that this variety is common for lens manufacturers.

SUITABLE OPTION
“1.67 lenses are especially apt choices for high-minus prescriptions,” explains Shirley Yin-Piazza, technical marketing manager for HOYA Vision Care, North America. “Some are even high-plus, going as much as +8.00D sometimes.” HOYA carries 1.67 in “pretty much every lens except trifocal,” including photochromic and polarized varieties. “People with more extreme prescriptions on the high-minus side use 1.67 lenses,” adds Yin-Piazza. “Sometimes you can go with basic plastic, but plastic can’t even get you to your high minuses for the very nearsighted. For patients like those, you’ll need a more premium material like the 1.67.”

At PFO Global, the Optima line includes high-index lenses made in Japan, including a 1.67 in semi-finished and finished, says president and CEO, Rudolf Suter. PFO Global stocks lenses up to cylinder 4.00D.

SPECIFIC EXAMPLES
Some products that fall under the 1.67 spectrum include Essilor of America, Inc.’s Accolade and Ovation, HOYA’s Amplitude and Hoyalux Array, Nikon Optical USA’s DigiLife (see “Modern Lifestyle, Modern Lens“) and SeeMax Power; Seiko Optical Products of America, Inc.’s PolarThin 1.67 (see “Seiko Slims Down in the Sun“), Supernal, and Surmount; Shamir Insight, Inc.’s three products in its Attitude III and Autograph III line; Transitions Optical Inc.’s Transitions Signature™ VII and XTRActive lenses; and Carl Zeiss Vision Inc.’s ZEISS Progressive GT2 3D and SOLAOne HD.

As technological advances continue, we may see even more variations of 1.67 high-index lenses come on the market.


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Rona Gindin writes about business and lifestyle trends from Orlando, FL.

WHERE TO FIND IT:
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Carl Zeiss Vision Inc.
800-358-8258
zeiss.com/lenses
Essilor of America, Inc.
800-542-5668
essilorusa.com
HOYA Vision Care, North America
877-528-1939
hoyavision.com
Nikon Optical USA, Inc.
877-767-8033
nikonlenswear.us
PFO Global
866-996-7849
pfoglobal.com
Seiko Optical Products of America, Inc.
800-235-5367
seikoeyewear.com
Shamir Insight, Inc.
877-514-8330
shamirlens.com
Signet Armorlite, Inc.
800-950-5367
signetarmorlite.com
Transitions Optical, Inc.
800-848-1506
essilortransitions.com
X-Cel Optical Co.
800-747-9235
x-celoptical.com
Younger Optics
800-366-5367
youngeroptics.com
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