Category: Lenses

Jul 25 2010

Lens and Social Media

 

The Think About Your Eyes Coalition has launched its first television and radio advertisements to kick off a two-year public awareness campaign designed to educate Americans about the importance of annual eye exams and the benefits they can provide to overall health. The television and radio ads are currently running in nine cities across the U.S., including New York, Los Angeles, Chicago, Denver, Atlanta, Houston, Sacramento, Cincinnati and Portland, Ore. 

The ads focus on a variety of eye health issues, educating consumers on topics ranging from eye disease to children’s vision and school performance to visual fatigue. They also urge consumers to visit www.thinkaboutyoureyes.com to learn more about healthy vision and to schedule an eye exam by locating a local eyecare professional through a tool available on the web site. 

Consumers can also connect with Think About Your Eyes through its new social media channels on Facebook, Twitter, YouTube and Flickr, all of which are accessible from the campaign’s web site. Social media activities will expand in the coming months as the Coalition prepares to execute major public awareness events, the first of which took place in New York City last month. 
Essilor, Luxottica and VSP Global make up the Think About Your Eyes Coalition and are seeking partners to join in its consumer education initiative.

(Article reprinted with permission from Jobson Publishing at 20/20 Lenses & Technology.

 

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0 comments - Posted by Conrad Egusa at 12:09 PM - Categories: Lenses | In Fashion

Jun 23 2010

Overview Of Anti-Fatigue Lenses

 
Photograph by Dan Kaiser/Blackbox Studio; FRAME: Jil Sander 2624 from Marchon
 

(Article reprinted with permission from Jobson Publishing at 20/20 Lenses & Technology. By Timothy Coronis, ABOC-NLCE) 

In today’s multitasking, info-overloaded world, it’s increasingly common for many of us to work online for hours, send text messages to friends and then relax by watching YouTube videos. It’s no surprise then that our eyes are often stressed to the point of exhaustion. Focusing on small digital screens, one to three feet away for an extended period of time can cause blurred vision, headaches and discomfort as the eye’s internal lens accommodates to maintain plus power for focusing at these distances. 

Fortunately, several manufacturers—Signet Armorlite, Essilor and Hoya Vision Care—have recently developed specialized lenses to help us perform these types of near and intermediate visual tasks. The new products, known as anti-fatigue or AF lenses, offer patients relief from digitally induced eyestrain and other visual stress. 

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1 comments - Posted by Conrad Egusa at 8:10 PM - Categories: Eyeglasses | Lenses | Designer Eyeglasses

Jun 8 2010

iPhone Application for Eyewear

Silhouette has taken the iPhone to heart —and eye—for optical browsers looking to try on eyewear and sunwear. With the introduction of its Virtual Mirror for the iPhone, Silhouette charges to the head of the Internet-scape. Their application allows consumers to try on a selection of Silhouette styles, lens shapes and color options creating fully customizable frames best suited for the customer’s face with just a few iPhone clicks and taps. 


 

 

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0 comments - Posted by Conrad Egusa at 1:48 AM - Categories: Lenses | In Fashion | Gadgets

Apr 30 2010

Tom Kramer Eyewear

For the past two consecutive Vision Expo shows, the Vision Choice award for Best New Product has been bestowed upon optical newcomer Tom Kramer, founder and designer of Teka Eyewear. This honor celebrates highly innovative eyewear in terms of both design and technology. Kramer, whose company has only been around since 2007, has come a long way in just three years.

Teka Eyewear (pronounced “tee-KAY” to represent the designer’s initials) is a collection built on passion. Designed entirely by Kramer, many Teka frames employ unique and exotic materials, which he loves to work with. “The materials for my frames are sourced from all over the world,” he says. “I have a frame that is made with bubinga wood, a rare wood from Africa. And there’s another made from zebrawood, a wood I have never seen used in eyewear before. We find small boutique factories that specialize in dealing with these materials. These woods are not stained; there is no wood veneer. If you were to break it open it would be the same wood inside as it is outside.”

Tapping into natural resources to create eyewear does not stem from an urge to embrace any current trend; the usage of woods, buffalo horn and leather derives from Kramer’s love for nature. “You look around and see trees, plants, fish and birds and they’re just beautiful,” he says. “I’d love to use a fish skin on a pair of glasses, but unfortunately you can’t do that. You have things appearing in nature that are perfect the way they are.”

Dismissing current trends and embracing his own style isn’t just a matter of aesthetic for Kramer, but also a well-devised business model. The timelessness of the collection, which is geared toward wearers aged 25 and up, ensures an enduring shelf life (pun intended). “The vision of the company is to provide timeless eyewear—not something that is here today, gone tomorrow fashion,” says Kramer. “Salespeople at optical shops get a feel for the frames’ shapes and contours. This differs from another model of selling frames, which involves coming out with a lot of new styles and being up-to-date with fashion. That may work at first, but those frames will never sell twice. I’ve seen the sales increase with Teka frames over time because salespeople have more confidence in the product after they’ve sold it a few times.”

Kramer’s aspiration to create timeless frames is executed through clean lines and a lot of rimless styles. “Rimless never went away,” he says. “If you look back at any of the classic frames throughout history, they are rimless and anyone can wear them. Also, since I use a lot of exotic materials on the temple pieces, I design the temple pieces first and then work my way in. I’ve always liked a clean look but you need to add a tinge of something to make it really stand out.”

In this economy, beauty alone is a hard selling point. Yet, despite the often expensive price tags on the rare materials, Kramer has a unique approach to business that makes the collection rather accessible. “The way I look at my business is not the way most people approach their business,” he explains. “I don’t look at the exact cost and say I need to make an exact amount of money on a particular frame. I balance cost over the entire collection. There are some frames that I don’t make much of a profit on but I sell at a lower price just so I can get it out there. For example, even though we offer some pieces in the collection with much more buffalo horn on them than others, we keep the price point the same so that we can keep on selling the frames well.”

Tom Kramer EyewearFor someone who seems to have both the design and marketing sides of his company worked out so thoroughly, it may come as a surprise that Kramer didn’t have any experience in the optical industry until just a few years ago. It was a combined interest in fashion and fascination for the technical aspects of construction that drew him to eyewear design. “I’ve always loved taking the ordinary and turning into something else,” he says. “I enjoy fashion along with the hands-on aspects, like finding out exactly how the screws are made and learning about grooves. I love the manufacturing part of the trade, and you’ll see a lot of that in the Teka metal and plastic frames—I’ll take a functional element like a hinge and turn it into an architectural piece.”

Despite Kramer’s affinity for the design process, he makes sure to always take the wearer into consideration. “When I design a frame, it’s not just a design piece,” Kramer explains. “First I look at someone’s face and think of what I can do to enhance that face. I never try to hide anyone’s features. I begin the design process by assessing what type of shape or what kind of material will make the most of someone’s face.”

Kramer puts a lot of emphasis on understanding the Teka customer. Taking the feedback from his clientele, the line has evolved along the way. “I always listen to feedback and learn,” says Kramer. “I always stick to the image of the brand and the process won’t change, but customer input has influenced some of the styles. The combination of colors on one of the wood frames is based on a suggestion I got from a customer.”

There is more for Teka Eyewear on the horizon. The success of the past three years has encouraged Kramer to branch out and look into a sunwear line and possibly even acquire a license for a children’s collection. “I’m always thinking about what’s going to be next,” he says.

Article reprinted from 20/20 Magazine with permission from Jobson Pubishing 

0 comments - Posted by Conrad Egusa at 4:49 PM - Categories: Mens Eyeglasses | Lenses | Celebrity Eyeglasses | In Fashion | Designer Eyeglasses

Oct 3 2009

Definity for Golfers

Essilor Launches Definity Fairway Transitions SOLFX

Definity for GolfersDALLAS—Essilor of America and Transitions Optical have launched Definity Fairway Transitions SOLFX, a new progressive sunwear product designed to meet the visual demands of golfers needing multifocal prescriptions. The new product combines the patented Dual Add 2.0 technology and Ground View Advantage of Definity lenses with the photochromic technology of Transitions SOLFX sunlenses to provide golfers with the right color and darkness for optimal performance in varying light conditions, according to the two manufacturers.

“Golf is a visually demanding sport. From tracking the ball to reading the greens, golf requires the use of near, peripheral, intermediate and distance vision—and changing light conditions can often create an added visual burden for golfers,” said Grady Lenski, director, Transitions sunwear. “Whether in the sun or in the shade, this new product will accommodate these needs, helping golfers play better and enjoy their game more.”

Definity progressive lenses use Dual Add 2.0 technology to create a fourth zone of vision, called the Ground View Advantage, giving wearers clearer vision when looking down. In a golf study cited by Essilor, players preferred Definity lenses 7:1 during course play – reporting less peripheral distortion, a 30 percent wider intermediate zone and smoother transitions between distance, intermediate and near vision.

Like all Transitions SOLFX sunwear products, the new golf product helps to enhance visual performance by automatically adjusting its degree of darkness to changing outdoor light conditions. The lenses will change from amber to a darker brown outdoors, improving contrast and depth perception to help golfers see the contour of the greens, and better see the ball. The lenses also help to protect against the harmful effects of UV rays and come systematically with Crizal Sun Mirrors which reduce back side reflections, and improve scratch resistance and cleanability.

“Players have already shown a strong preference for Definity lenses on the course,” said Carl Bracy, vice president of marketing, Essilor of America. “We’re confident that wearers will appreciate the added benefits and versatility provided with the Transitions SOLFX sunwear technology and the additional glare protection provided by Crizal Sun Mirrors.” ?

--Article from 2020 Magazine, reprinted with permission of Jobson Publishing.

1 comments - Posted by Mark Agnew at 9:27 PM - Categories: Sunglasses | Prescription Sunglasses | Lenses | Sports

Sep 25 2009

High Index Lenses



Photograph by Ned Matura; Lenses courtesy of KBco and Vision-Ease Lens

By Timothy Coronis

High-index plastic lenses (Link: Lens Wizard) can greatly improve the eyeglasses you build. Using a high-index lens material—one with an index of refraction ranging from 1.60 to 1.74—can reduce lens thickness and weight, making eyeglasses comfortable and cosmetically appealing. High-index lenses can also be used to improve the fit of lenses in the frame.

Because of the ever-expanding range of high-index lenses on the market, many dispensers are unsure of how choose an appropriate lens for a patient. With so many lens materials and lens treatment combinations available, knowing when to recommend one high-index lens versus another can seem like a numbers game. To win that numbers game, you’ve got to master a few key optical concepts and facts.

Understanding Index of Refraction
Index of Refraction is the speed of light in a vacuum divided by the speed of light in a given material. The resulting number (1.5, 1.6, 1.67, 1.74) is referred to as the “index.” The higher the number, the more light is slowed down or bent. This means high-index lenses bend light at steeper angles than standard-index, hard resin lenses. Therefore, high-index lenses need less curvature to achieve the same focal power. That’s why a lens made from a 1.67-index material can be significantly thinner than a standard-index (1.50) plastic material with the same prescription.

An additional benefit of high-index lenses over standard plastic lenses is that they offer inherent UV protection as opposed to having to apply a UV coating, which may cause some standard-index lenses to turn yellow.

High-index lenses also have flatter curvatures than their standard plastic cousins. Aspheric design, when combined with high-index resin, will further thin and flatten both plus and minus powers. All these factors make high-index lenses an especially good match for today’s frames, which are of an increasingly flat design. And its high tensile strength makes a 1.67 material a good choice for drilled rimless.

Factoring in Abbe Value
When looking through a lens at a point other than the optical center, the component colors making up white light are displaced laterally by differing amounts resulting in a degraded image, so a challenge in high-index lens design is minimizing effects of chromatic aberration, or color dispersion occasionally noticed by the eyeglass wearer as a “halo” or color fringes around the edges of an object.

A scale used to rate the degree of chromatic aberration of optical materials is the Abbe value. A lower Abbe value indicates more chromatic aberration and a higher Abbe value indicates less.


Comparing High-Index Materials

Material Refractive Index Abbe
1.74 1.74 32
1.70 1.70 36
1.67 1.67 32
1.60 1.60 42
Polycarbonate 1.59 32
Trivex 1.53 45
Standard Plastic 1.50 58


A “sweet spot” exists at and around the optical center of lenses within which chromatic aberration is more tolerable. Minimal decentration of lenses in the frame and a smaller ED minimizes the effect of chromatic aberration. The idea is to position the best optics directly in front of the patient’s pupil and to reduce areas of the lenses in which the chromatic aberration is most noticeable. There is no practical way to eliminate chromatic aberration, but anti-reflective (AR) lenses can help patients tolerate the problem.

The AR Advantage
When dispensing high-index materials, AR lenses offer significant advantages over non-AR lenses. Because high-index materials are relatively dense, they have significantly higher reflectance than lower index lenses. This higher reflectance creates increased veiling glare under ordinary lighting and also creates annoying ghost images when bright light sources are introduced into an environment of generally low illumination (e.g. oncoming headlights during night driving or candles in a darkened restaurant). By reducing the higher reflectance that is otherwise going to be present whenever index is increased, the optical performance and the cosmetic appearance of these lenses are both improved.

Presenting High-Index Options
When recommending a high-index lens to a patient, remember to go easy on the technical features. Focus instead on the benefits the patient will receive (while always being prepared for questions and concerns). You’ll feel more like the expert when you act like the expert, recommending what’s best and keeping in mind the individual’s prescription and lifestyle needs, rather than presenting a laundry list of every option.

Always consult with your optical laboratory or lens sales consultant if a patient is having difficulty wearing a particular lens material. They can recommend other lens materials and treatments. For example, a patient who cannot tolerate a polycarbonate material or a high-index can still be given a highly impact-resistant material by using a lens made of PPG’s Trivex, which features a 1.53 index and an Abbe value of 44.

With knowledge, ability and a little patience, it’s possible to ascertain what your customer wants and then combine several elements of cosmetics and technology into a pair of glasses that are as attractive as they are functional.


Timothy Coronis ABOC-NCLE, is a certified optician and contact lens examiner based in Keene, N.H. He is also an American Board of Opticianry technical speaker. He may be reached at timothycoronis@hotmail.com.


Solving Patient Needs
Here are some examples of how choosing the right high-index material can solve a variety of patient’s optical and cosmetic needs.

Example 1
The patient’s prescription is -8.00 R –7.75 L and the PD is 58mm. The patient selected a fashionable, rectangular frame, 52-20, and is asking about polycarbonate lenses.

This prescription/lens/frame combination could spell trouble. The fact that the lenses are decentered 7mm each and rectangular shape means the outer edges of the lenses would be very thick. It’s better to avoid thick lens edges through careful frame selection and choice of materials whenever possible.

A useful tip when building glasses and anticipating how lenses will look in the frame is to remember that greater decentration causes thick lateral edges for minus prescriptions and thicker centers for plus lenses. The former case is exactly what we’re trying to avoid.

Solution
Recommending a smaller, 48-18 as something to complement the lenses, will result in a decentration of only 4mm each. A less severe frame shape such as an oval means there will be less thick lens edge in the eyeglasses. These decisions, combined with a 1.74 index and an aspheric design, mean there will be much thinner lenses in the frame. In our new example, each factor worked toward the same goal, thinner, more attractive lenses.


Example 2
The patient’s prescription is  +0.75 OD, +4.25 OS, PD is 65. The patient picked out a 48-20 zyl frame and then had eye exam. These are two very different lenses and two very different powers. Glazing a zyl frame with these lenses would result in the OS temple being angled inward because the left eyewire must be molded around the steep lens curvature, while the OD side would be more nearly at right angles to the front.

Solution
To achieve better symmetry and to get this prescription into a zyl frame in an artful and practical manner, the optician suggested a 1.67 aspheric lens for the OS and a standard plastic, non-aspheric for the OD. The high-index makes the OS lens thinner and being aspheric will makes it even flatter. The OS lens is a non-aspheric standard plastic. In spite of dissimilar powers, the lenses will look like a matched pair and will behave similarly in the frame, and the patient with dissimilar eyes can receive eyeglasses of the same cosmetic standard as anyone else. AR lenses are also recommended for low power lenses.

Patients with this much anisometropia will be more prone to spatial distortions if they have approximately equal acuity between the eyes, and moderate to good stereopsis. A consultation with the Rx-ing doctor would be a good idea before proceeding.

 

Example 3
The prescription is +1.00 OD and +1.25 OS, add power is +2.75 OU and the PD is 56. The patient likes a grooved and rimless frame design that measures 52/18. He wants to use his glasses for reading only and he likes the idea of standard plastic being the cheapest option. He mentions having gotten “eyeglasses-in-an-hour” last time.

This is a different type of potential problem. The full reading prescription here is +3.75 OD and +4.00 OS. Plus lenses are thickest in the center and thinnest at the edges. The patient’s PD of 56mm means the lenses would have to be decentered 7mm each, which would result in eyeglasses with lenses inordinately thick both near the bridge and in the centers. In fact, in this particular case, ordering lenses surfaced to get sufficient thickness for grooving at the temporal edge would make the overall lens thickness considerably greater.

After reflecting on similar situations, the dispenser explained to the patient that in order to get the lenses in their best form, another frame would have to be selected.

Solution
Use 1.67 aspheric lenses mounted in a zyl frame to conceal the thick nasal edge and a rounder frame design at 48/19 to reduce decentration. The lens and frame combination will harmonize quite well. The aspheric greatly reduces the lens thickness at the nasal edges.

Example 4
The prescription is -4.00 OD, -3.75 OS. Patient likes drilled rimless frames. Conversation revealed the patient works in a bank, uses a computer screen all day and deals with the public. Recommendations should include that AR lenses present a nice appearance, relieve eyestrain from prolonged computer use and improve the appearance of rimless designs. 

Solution
Rimless, eight-hole drilled, anti-reflective lenses for looking at the computer screen all day, fabricated with 1.67 drillable material with a high-tensile strength.

 

Article reprinted from 2020 Magazine, with permission from Jobson Publishing.

0 comments - Posted by Mark Agnew at 8:59 PM - Categories: Lenses

Sep 25 2009

Digital Lens Technology

Taking the Plunge With Digital Lenses

06-2009



No other segment of the eyecare industry is experiencing the type of breath-taking change that is now winding through the lens and surfacing laboratory business. The broad arrival of free-form, digital surfacing equipment has, seemingly overnight, resulted in some labs beginning to completely abandon the conventional fabrication tools, spindles, laps and calculations that have been employed essentially unchanged for more than 100 years.


Why is this class of lens so quickly invading the turf occupied by traditional lenses?
The numbers reveal all:
1. Surface precision improves a factor of six times, from 0.06D to 0.01D.
2. Fabrication times are cut by 50 percent.
3. Lens size and cut-out issues are almost non-existent since any design can be “de-centered” into the Single-vision lens blank of your choosing.
4. There are almost no refractive index or substrate restrictions. You can make the lens design of your choice on the material of your choice. For instance: No more searching for what lenses are available in Trivex Transitions. Inventory requirements are slashed. Processing free-form/digital progressive lenses requires that you only carry single-vision, semi-finished lens blanks. No more various progressive lens designs times base curves times near adds. And in the most sophisticated designs, corridor length and inset can be specified by the dispenser.
5. Increased variety and ever more sophisticated lens designs are and will be available as quickly and easily as the specific design algorithm can be downloaded to the lab’s computer.

With the latest and most sophisticated lens designs available for either single-vision, progressive or wrap (or combined), coupled with a “dealer’s choice” from the cornucopia of material index, curve and photochromic options, what could stop ECPs from immediately embracing this new technology?

Let’s take a look:
1. Increased cost—In the beginning, every new technology has an increased cost as compared to the traditional technology of the day. In the not-too-distant past, the start-up laboratory costs for free-form equipment had been very high. And the prices for free-form lenses also seemed expensive. But as production, acceptance and market penetration of free-form lenses has grown, we’re seeing the prices of these lenses decreasing to the level where many good free-form designs are priced in line with traditional lenses. And further reductions are sure to follow.
2. My current/main lab doesn’t offer these new lenses—If they don’t now, they soon will. But why wait? Why not try one of the newer, all-digital labs that specialize in only free-form, digital lenses. As mentioned above, these lens costs can be comparable to your favorite, traditional premium lenses.
3. The unknown frontier—For many ECPs, digital/free-form technology is just all too new, unfamiliar and risky. With an established tradition of questioning the benefits and increased cost of any new lens, frame and other related ophthalmic technology, who can blame an ECP for asking “What I’m using now isn’t broke. Why should I experiment and take the risk changing from what I work with now?” By being among the first to introduce new products to their clients, ECPs can continue to effectively compete with the lure of Internet eyewear.

Risks and Rewards
With progressive lenses, ECPs generally accept the traditional wisdom of not changing the brand of progressive that a client is wearing, particularly if they seem “satisfied.” We’ve all taken risks here and sometimes found failure. And when we’ve experienced failure, we often immediately run back to the lens we already know. But looked at realistically, we all realize that there is no single progressive that is good for everyone that walks into your office. Yet, the prospect of experiencing dissatisfaction should not be a sufficient enough reason to avoid taking the risk of introducing a new lens design.
It is said that we learn more from our mistakes than from our successes. But even the normal updating or changing of a patient’s Rx comes with risks. We need to understand the questions that help define the risks we face every day in dispensing eyewear:
1. Will they see well?
2. Will they experience an unwanted or altered perspective?
3. Will they feel their eyewear will let them accomplish their daily tasks?
4. Will they like the way they look?
5. Will others (family and friends) approve of the appearance of the new eyewear?
6. Will the eyewear fit comfortably?
7. Will it hold its adjustment in a satisfactory manner?
8. Will the eyewear purchase be perceived as a good value?
9. Will the eyewear prove to be inconvenient?
10. Will the total eyewear experience ensure your client will be a repeat customer?
It’s no wonder, considering how complexly these risks are juggled when dispensing eyewear that ECPs are innately and often subconsciously concerned with managing and reducing the prospect of creating an unhappy customer.

How Well Do ECPs Manage Risks
When faced with recommending new eyewear, most dispensers tend to be a little chicken. This is a direct outgrowth of using a need-based approach to new eyewear. How many of the following, need –based, risk-reducing phrases do you or your staff use in an average work week?
1. “There’s so little change in your Rx, you don’t really need to get new glasses.”
2. “Don’t bother purchasing [expensive] prescription glasses, when over-the-counter    readers will work out just as well.”
3. “This frame style will go with everything you wear, so you’ll need only one pair.”
4. “Progressive lenses will let you see all ranges. There’s no need for separate pairs of glasses for work, hobbies or play.”
5. “Congratulations! Your eyes are perfectly healthy and you do not need to get (or change your) prescription glasses.”
6. “You only need to wear glasses to drive.”
7. “Choosing photochromic lenses means you won’t have to deal with the inconvenience and expense of separate sunglasses.”
If you don’t think these phrases connote reduced risk, then imagine communicating just the opposite thought for any one of them. Immediately you’ll discover the risks you’re avoiding by not suggesting your clients actually spend more money (and in some people’s opinion, more than they have to) for new, different or supplemental eyewear technology and/or fashion.
It’s important for ECPs to realize that our habitual approach to reducing risk has been rationalized and codified into being afraid to “guinea-pig” the latest products on our clients. Continuing to follow this modality would be a major mistake.
Instead, try taking a more proactive approach with recommending new technology. But always keep a back-up plan defining how you will handle the recommendations that don’t deliver on the promised benefit.

Recommending New Technology
There really are almost no risks to recommending this latest lens technology. Why? Because almost any type of quality free-form lens has a promise of better vision. And this benefit is consistent with every eyecare practitioner’s job to deliver the best vision possible. Using these better products, combined with a new, preventative approach to maintaining eye health is a win-win situation for patient and practitioner.

But, always lurking behind every recommendation is the doubt that either the client won’t find the new product superior to their previous, lower-cost eyewear or suffers an experience that is actually inferior to what they had before. Every ECP wants to avoid situations like these because they set precedents in the patient’s mind that some future product recommendations, especially those requiring paying more, may be met with increased doubt or skepticism. We’ve all heard clients say, “We’ve tried that (more-expensive) product before and it didn’t make any difference.”

Let’s look at an example that, in the recent past, truly didn’t work out as hoped. Every ECP will agree that earlier anti-reflective coatings for plastic lenses, from about 1998 to about 2002, could fall into this category. The approach I use to respond to client’s dissatisfaction with older AR (cleaning and/or adhesion failure that often appeared to clients as a propensity to scratch more easily) is simply honesty is the best policy. “Yes, these older AR coatings were substantially inferior in their cleaning and ability to stay adhered to your lenses. But today’s, premium AR finishes are in fact I believe, much better than they would have been if this crisis never occurred.” In keeping with the old saying, you learn more from your mistakes.

Taking Baby Steps in Free-form
Even with all the cheerleading for ECPs to try out these newer, free-form progressive lenses, some will simply not want to take a chance with either the increased cost or the prospect of problems that moving tried-and-true lenses can bring.
One of the best ways to begin experiencing the benefits of free-form technology is with single-vision. Especially if the Rx you’re dealing with has more than a 0.50D of cylinder power, consider suggesting one of the current free-form, single-vision designs, such as Essilor 360 SV or Shamir Autograph II SV. When packaged with a quality anti-reflective coating, these lenses will produce “wows” at your dispensing desk. In my store I heard the following exclamations when delivering free-form, single-visions lenses to mild to moderate astigmats:
1. “This is unbelievably clear!”
2. “It’s almost like HD vision!”
3. “Wow! This lens is like freaky clear!”
4. “It’s like a picture window made with my prescription.”
And single-vision, free-form costs only pennies more than some similar quality, stock finished lenses. The cost to the client and practitioner is not at all intimidating, while the accompanying optical compromises in progressive lenses are removed from the equation all together.

Free-form lenses represent the pinnacle of optical technology. Lens manufacturers and labs are continually improving the way they are designed and manufactured. If you’re not yet dispensing free-form lenses, or have had concerns about them, now is the time to fully embrace them. Your clients deserve nothing less than the best vision products you can deliver.

 

Article reprinted from 2020 Magazine, with the permission of Jobson Publishing.

0 comments - Posted by Mark Agnew at 6:26 AM - Categories: Lenses