Augen’s HDRx Trinity 8/12 lens has an exceptionally short corridor.
Mexican company Augen started 25 years ago as a small, family-run manufacturing company that made glass surfacing molds. Since then, it has managed to retain its family-oriented roots while growing into an international lens design and production organization whose product catalog includes a comprehensive offering of lens styles and materials. Now, Augen has advanced its production equipment using free-form technology, creating its most accurate lenses yet.
For the past four years, Augen has been offering its Augen High Definition Lenses®, featuring progressive and single vision aspheric and double aspheric technology. While these lenses have a wider, clearer field of view than conventional spherical lenses, Augen’s ultimate goal was to deliver designs with greater precision using digital technology. Over the past several years, the company has been refining its proprietary in-house processing technology in order to introduce a complete free-form product line. What they have developed is the Augen HDRx.
Augen has always used free-form technology to design and surface their molds, which are then used to cast their lenses. Augen claims that this results in a more accurate mold that ensures the high-definition optics intended by the lens designer are delivered in the final product. Augen claims that its HDRx lenses go a step further, using the company’s patented EasyForm® Digital Surfacing Technology to “engrave” the lens design directly on the front or back surface of the lens.
Augen’s Trinity progressive lenses have been on the market as high-definition lenses since 2008. The HDRx collection uses those same designs, only now produces them using more precise digital equipment and incorporating customization based on patient PD measurements, lens material and segment height. The line includes three designs:
HDRx Trinity 13/17: The bread and butter of the collection, this PAL offers easy adaptation with a traditional corridor and soft design. The recommended minimum fitting height is 17mm in a frame with a B measurement of 27mm or more.
HDRx Trinity 8/12: The 8/12 lens has an exceptionally short 8mm corridor, facilitating comfortable wear in small fashion frames. Fitting height can go down to 12mm with a recommended B measurement of at least 22mm.
HDRx Trinity Spacia: Perhaps the most innovative of the three lens designs, Trinity Spacia was created for presbyopes who value distance and intermediate vision. Trinity Spacia virtually reverses the proportions of a traditional progressive corridor because its intermediate zone is extra wide, long, and crisp while the near zone is more condensed. This lens is perfect for wearers who find themselves reading computers, tablets, and cell phones more than printed materials or otherwise using intermediate vision more than near. Because of the extended intermediate zone, Trinity Spacia has a minimum fitting height of 22mm.
PROPRIETARY EQUIPMENT Augen has its hands in every part of the lens creating process. All of their HDRx lenses are created using Augen’s proprietary EasyForm® equipment. This compact, patent-protected system is an all-inclusive package that can do everything from surfacing to engraving to blocking a lens with a new and improved blocker. This equipment is also available to labs seeking an entry into free-form design.
In addition to choosing among these three designs, opticians can dictate whether they want the progressive design on the front or back of the lens. In HDRx Optimized, both the Rx and the design are produced on the back surface using ray tracing calculations that ensure the best optics. HDRx Digital Progressives use free-form surfaced molds to build the design into the front surface of the lens. The Rx is processed on the back surface.
AVAILABILITY Because HDRx lenses are produced on-demand, they are available with a wider array of materials and options than any previous Augen lenses. Augen’s preferred material has always been Trivex®, and that remains the case with HDRx. The lenses are also available in high-index up to 1.67 along with several photochromic and polarized options.
Kate Jacobs is an optician at the optical shop at Scheie Eye Institute at the University of Pennsylvania.