The Latest on Lenses

By By Brian P. Dunleavy

They say an artist is only as good as his or her material.

So, if lens processing is an art, it follows that those who are engaged in this all-important function in the provision of quality eyewear need the spectacle designs with which they work to deliver on their promised features and benefits in order to meet to meet the expectations of the end user. Of course, one never really knows just how new lens designs stack up until they’re “tested” in the “real world.”

However, lens manufacturers continue to raise the bar in terms of anticipating—and meeting—the potential needs of eyeglass wearers. Here are some of the latest offerings, many of which were introduced during Vision Expo East in March:

Shamir Adds to Autograph Collection

Shamir Insight has released Shamir Autograph Intelligence, the company’s newest and most advanced lens design that adapts to the diverse needs of today’s presbyopes. The new design is available from a select group of validated Shamir Partner Laboratories.

To develop a lens that can adapt to diverse patient needs, Shamir embarked on an extensive research project using methods of “Big Data” and elements of Artificial Intelligence. This research revealed a correlation between patients’ visual needs and their “Visual Age,” which refers to the physiological age of the eye (which determines the required addition) and is generally correlated with their chronological age.

Shamir Autograph Intelligence takes visual diversity into account to provide the right optical solution for patients at every Visual Age, without the need for questionnaires or time burdensome applications. The new design is supported by three new technologies, all developed by Shamir. The new breakthrough technologies are:

Eye-Point Technology AI, which utilizes Head Eye Integrative Movement software to see exactly where in the lens patients look, along both the vertical and horizontal meridian, when they perform tasks in the various visual zones.

Continuous Design Technology, which integrates research findings with patient habits and visual needs to provide a seamless lens for every Visual Age, allowing patients to comfortably move from one add to the next without any adaption concerns.

Visual AI Engine, which applies elements of Artificial Intelligence that mimic human intelligence to make “go/no-go” decisions based on predefined rules, and the output ensures uniform and controlled planning for any combination of parameters with extreme accuracy for each new lens design.

Shamir Autograph Intelligence is available in variable and fixed designs, including 11mm, 13mm, 15mm and 18mm fitting heights, in the full range of materials offered by Shamir. A list of current Shamir Partner Labs who have passed the validation process can be found on Shamir’s website.

Kodak Addresses “Pre-Presbyopia”

Signet Armorlite has expanded its Kodak lens portfolio with the enhanced single-vision Kodak PowerUp design.

With the increasing use of digital devices, eyeglass wearers of all ages need vision support for prolonged, comfortable reading up close. Kodak PowerUp offers two levels of power boost in the reading area, 0.40D and 0.66D, for adults that are not ready for a progressive lens design, but need additional correction for up-close vision while using phones and/or tablets, etc. The low levels of power boost reduce eyestrain and serve as training in the use of a near-vision zone for easier adaptation to progressive lenses when they reach presbyopia.

Kodak PowerUp lenses are available in clear, photochromic, polarized and blue-light filtering lens options (Kodak Total Blue), in 1.67-index now and the polycarbonate. The new design requires monocular PD and fitting height measurements for proper placement of the power boost but are dispensed to the patient as a single vision.

Transitions Signs On

Transitions Optical has launched the next generation of Transitions Signature lenses—Transitions Signature GEN 8. The new lenses are engineered with proprietary technology designed to “deliver the best overall photochromic lens performance.”

According to the company, the performance of photochromic lenses is linked to two components: the matrix in which the dyes reside and the photochromic dyes themselves. The Transitions Signature GEN 8 lens technology incorporates a fully reinvented system, including a reinvented matrix and new photochromic dyes, which has not been done since the launch of Transitions V lenses in 2005. The new design is the result of five years of research and development, and it combines a disruptive nanocomposite matrix and a new generation of ultra-agile photochromic dyes. The nano-composite matrix in Transitions Signature GEN 8 lenses is a nano-structured material that mimics a semi-crystalline structure. This matrix creates free zones for improved dye mobility. Not only can the dyes move more freely within the matrix, but it is also more stable and consistent in its performance.

As a result, the company noted, Transitions Signature GEN 8 lenses are faster in activation and fadeback, and they are even darker than previous generations. The lenses also block 100 percent of UV light and help protect from harmful blue light indoors and out.

Transitions Signature GEN 8 lenses will launch in the U.S. this summer.

Zeiss Goes the “Dura”-tion

Carl Zeiss Optical recently added DuraVision Flash Jade, Amber and Sapphire mirrors to its DuraVision Mirror portfolio.

Each of these flash mirrors has a slight reflectance as indicated by each of the colors’ names: The jade, green Sapphire, blue/violet Amber and gold Flash mirrors are lighter than standard mirrors. According to Zeiss, they also have a bit lower reflectance and less influence on the base color tint of the lens. The result is color-neutral vision outdoors. The flash mirrors are usable indoors on a clear or photochromic lens.

All Zeiss DuraVision Flash Mirrors (and all DuraVision mirrors) include DuraVision Sun backside AR to help reduce reflections on the backside of the lens and improve cleanability.

Hoya’s New SENSE-ation

Sensity by HOYA, a photochromic, offers three deep, natural colors providing consistent performance plus outstanding contrast and glare reduction. In addition, new technologies have resulted in making Sensity Dark more responsive behind the windshield, while its sister product, Sensity Shine comes in new fashionable, mirror-coated styles.

According to HOYA, Sensity photochromics darken and fade back quickly, while reducing glare and providing 100 percent UV protection.


Labtalk-December 2019