Archives de l’auteur : Envision Magazine

Eye-friendly Nutrition: Antioxidants, Carotenoids and Omega-3 Fats

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Eye-friendly Nutrition: Antioxidants, Carotenoids and Omega-3 Fats
ByCarolineBreton, B.Sc., PDt, Registered Dietitian

Research and innovation in the field of nutrition have generated greater awareness of the role nutrition plays in eye health. According to numerous observational studies1,3, people with dietary intakes high in various carotenoids, antioxidants and omega-3 fatty acids have a lower risk of developing age-related macular degeneration (AMD).

A systematic review published in January 2012 by the U.S. Department of Veterans Affairs discussed the role of nutritional supplements for AMD2. The report aimed to address two key questions: first, in patients with AMD did nutritional supplements containing carotenoids, antioxidants, or omega-3 fatty acids alone or in combination prevent functional visual loss? Secondly, what harm might supplementation with carotenoids, antioxidants and omega-3 fatty acids cause in the adult population?

According to the authors, the evidence of benefit from supplementation with carotenoids and antioxidants on functional vision loss in patients with AMD was based primarily on the results of one large clinical trial and the observed benefit occurred only among patients with category 3 or 4 AMD.  One report finding was that carotenoid and antioxidant supplements significantly decrease visual loss and can be recommended for patients with category 3 or 4 AMD.  The report identified seven randomized clinical trials of nutritional supplements in AMD patients but significant effects in preventing vision loss were only found in the largest two trials, with the weight of evidence dominated by the Age-Related Disease Study (AREDS) because of its large sample size (N=3640) and the long-term duration of the study (seven years).

The other studies had smaller samples sizes and shorter durations, which may not have been enough to detect a treatment effect. In the AREDS study, the beneficial effect was seen in a combination of antioxidants (500 mg vitamin C, 400 IU vitamin E, and 15 mg beta-carotene) plus zinc (80 mg zinc oxide and 2 mg cupric oxide), but only in the group with category 3 or 4 AMD. Current literature does not support the use of these supplements for patients with mild AMD.

The Department of Veterans Affairs report also discussed the potential dangers of these supplements. Caution is warranted before recommending them to high-risk individuals as certain nutritional supplements have significant potential harms. Vitamin E supplementation is associated with increased mortality and congestive heart failure in high-risk patients, as well as increased risk of prostate cancer, and beta-carotene is associated with increased risk of lung cancer among smokers.

Research on the subject is ongoing. Another very large trail, the AREDS II study, with approximately 4,200 subjects with categories 3 to 4 AMD, is currently underway; it will evaluate the effects of carotenoids (lutein and zeaxanthin) and omega-3 fatty acids (DHA &EPA) on AMD progression.

With an aging baby boomer population and AMD on the rise, it is important to encourage healthy lifestyle choices that may reduce the risks for AMD, as well as other diseases that can affect vision.  These choices include:

  • Maintaining a healthy weight
  • Having an active lifestyle
  • Quitting smoking
  • Avoiding excessive exposure to sunlight
  • Eating a balanced low-fat diet, which includes vitamins C and E, zinc, carotenoids (zeaxanthin, lutein, beta-carotene) and omega-3 fats
  • Discussing nutritional supplements with a healthcare provider

The table below summarizes eye-friendly nutrients and food sources.

Antioxidants Food Sources
Vitamin C:

Also called ascorbic acid, vitamin C is a water-soluble vitamin found in all body fluids. It is mainly found in the fruits and vegetables food group.

  

Sources include citrus fruits (oranges, grapefruit and lemons), berries, green leafy vegetables and tomatoes
Vitamin E:

 A fat-soluble vitamin that can be stored in the liver. It is a very efficient, natural antioxidant.

  

Found in vegetable oils, margarines, whole grains, eggs, liver, beans, and green leafy vegetables.
Zinc:

An essential element, generally considered non-toxic. Found in a wide variety of food groups, such as meat, milk products and grains.

  

Red meat, liver, oysters, beans, chickpeas, whole grains and poultry are rich sources. Also milk products, eggs, fish and nuts.
Carotenoids Food Sources
Beta-carotene:

Carotene is one of several kinds of the carotenoid family. Found mainly in plants, carotenoids are commonly bright yellow, orange and red pigments, which give foods their colour.

 Rich sources include carrots, sweet potatoes, squash, cantaloupe, peaches, broccoli and kale.
Lutein and zeaxanthin:

These two carotenoids are present in the macula segment of the retina and are believed to play a role in eye health by improving macular pigment density.

 The best food sources of lutein and zeaxanthin include kale, spinach, sweet potatoes, squashes, carrots, cantaloupe, corn, egg yolks and eggs enriched with lutein.
Omega-3 fats Food Sources
Alpha-linolenic acid (ALA), Eicosapentaenoic acid (EPA) and Docosahexaenoic acid (DHA). All of these omega-3 fats are important because each has specific health benefits. DHA supports the normal development of the brain, eyes and nerves. EPA and DHA come mostly from fish and marine sources, plus omega-3 enhanced foods. Sources include Atlantic salmon, rainbow trout, herring, sockeye salmon, white tuna canned in water and omega-3 enhanced eggs.

References:

1.www.pennutrition.com/KnowledgePathway.aspx

2. Kansagara D., Gleitsmann K., GillinghamM., Freeman M., Quiñones A. Nutritional Supplements for Age-Related Macular Degeneration: A Systematic Review, Source Washington (DC): Department of Veterans Affairs (US); Jan. 2012

3. Krishnadev N, Meleth AD, Chew EY. Nutritional supplements for age-related macular degeneration. Current Opinion in Ophthalmology. (3): 184-9. Source: National Eye Institute, National Institutes of Health,Bethesda,MD,USAMay 21, 2010

The Problem of Non-Compliance

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By Shirley Ha, BSc. (Hons), O.D.

makingcontact

 

Despite growing awareness that improper contact lens care and wear procedures can significantly increase the risk of eye infections, many consumers still do not follow the manufacturer or practitioner’s recommendations for safe practices.

According to a University of Texas survey of 433 contact lens wearers, more than 50 per cent of participants were able to name contact lens-related complications. Yet only 2 per cent demonstrated ‘good’ compliance and only 1 participant was ‘fully’ compliant. At the same time, 85 per cent of participants believed they practiced safe lens, solution and case handling.[i]

The non-compliant behaviors cited were:

 

  • Swimming (64 per cent) and exposure to tap water, including showering (57 per cent) while wearing lenses
  • Sleeping while wearing lenses not intended for continuous wear (56 per cent)
  • Failure to adhere to the recommended wearing schedule (52 per cent)
  • Not washing hands prior to handling lenses (49 per cent)
  • Never replacing lens case or replacing them only if given a new case (47 per cent)
  • Topping up (42 per cent) or re-using (28 per cent) disinfectant solutions

Interestingly, ‘comfort and handling’ was cited as a complication more often than infection – and although 90 per cent of study participants were aware of the importance of using fresh solution, many failed to discard used solution first.

In another study, 20 per cent of patients polled in the UK admitted that they used tap water, saliva, baby oil, beer, Coke, petroleum jelly, lemonade, fruit juice and butter (!) as alternatives to contact lens solutions (Bausch + Lomb news release, Nov. 2011).

In recent years, a plethora of industry-sponsored research papers have discussed contact lens care compliance relating to solutions, wearing modality and ocular lubricants.[ii] However, in developing safer, more effective and easier-to-use disinfection systems and more comfortable, oxygen-permeable lenses, manufacturers could inadvertently be sending a false message that it is ‘safe’ to stretch lens wear longer than indicated or to sleep in lenses more often than recommended.

In comparison with these findings, about 350 eyecare practitioners surveyed by Contact Lens Spectrum for the 2011 Annual Contact Lens Report believed that 75 per cent of their patients wash their hands before handling their lenses, that 60 per cent rub their lenses and 64 per cent rinse them as recommended; they also believed that 70 per cent of their patients followed recommended contact lens hygiene guidelines.[iii]

So, why the discrepancy between practitioner perception and patient performance?  Are patients lying to their practitioners about lens hygiene and solution handling?

To cultivate compliance, the gold standard has always been to use auditory and visual patient education aids to address personal hygiene or hand washing, wearing and replacement schedule[iv],[v] , cleaning and disinfection of lenses and storage cases , and to discuss adverse contact lens-related events such as potential corneal complications. Yet, a significant majority of patients continue to demonstrate non-compliance despite awareness of the risks.[vi]

Dr. Gary Gerber, a New Jersey-based practice building expert-optometrist and president and founder of Power Practice®, agrees that not all aspects of patient education work to improve compliance: « We know that showing patients an ulcerated cornea or the classic nasty red eye poster doesn’t work. Education about what patients lose when they are non-compliant resonates better. So, talk to patients about the reasons they love wearing lenses (freedom, self-confidence) and remind them that if they blow it, they lose all that. In other words, talk about the loss of benefits and advantages – not the features of the lenses.”

It remains incumbent on practitioners to keep providing appropriate patient education, instruction and training in order to increase patient vigilance about the risks associated with contact lens wear. Equally important are regular follow-up visits to determine whether they are compliant with the recommended wearing and replacement schedule and to ascertain whether patients are conforming to the accepted lens, solution and lens case care guidelines.

Standardizing a set of questions to elicit non-compliant behaviors and repeating professional advice at each follow-up visit can help practitioners augment compliance and reinforce the importance of good lens and solution handling practices. Be aware that the questions, depending on how they are formulated, may also generate false responses from patients, especially from those who don’t want to admit to improper lens wear and care.  As an example, ask patients what happens in the morning after they have slept in their lenses instead of asking whether they sleep overnight in their lenses.

Not all contact lens-related problems are the result of poor compliance and there is no quick fix for patient non-compliance. The problem is not going to disappear anytime soon but by recognizing the different kinds of non-compliant behaviors, providing appropriate education and training, asking the right questions at follow-up visits, and delivering the consistent message of continued commitment to good lens, solution and lens case hygiene, practitioners can help carve a safe and healthy path to clean, clear and comfortable vision for all contact lens patients.

 

[i] ROBERTSON, DM, CAVANAGH, HD. Non-Compliance with Contact Lens Wear and Care Practices: a Comparative Analysis Optometry & Vision Science, December 2011, volume 88, pp1402-1408

[ii] GROMACKI, SJ. Research From the 2011 AAO Annual Meeting, Contact Lens Spectrum, December 2011

[iii] NICHOLS, JJ. Contact Lenses 2011, Contact Lens Spectrum, January 2012

[iv] HICKSON-CURRAN, SB. Compliance Before, During and After Contact Lens Wear, Contact Lens Spectrum, January 2012

[v] BENOIT, DP. Compliance and Contact Lenses, Contact Lens Spectrum, May 2011

[vi] BUI, TH, CAVANAGH, HD, ROBERTSON, DM. Patient Compliance During Contact Lens Wear: Perceptions, Awareness, and Behavior., Eye & Contact Lens, November 2010, volume 36, issue 6

New Lenses: When They Come Knocking, Do You Let Them In?

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By Paddy Kamen

featureWhen the lens sales rep comes knocking, do you flip the ‘open’ sign to ‘closed’? And if you let the rep in, do you glaze over because you find it almost impossible to sort the wheat from the chaff in new lens designs and materials?

Do eyecare professionals (ECPs) feel truly competent when it comes to understanding the fine points of new lens technologies? Dr. Ralph Chou thinks not. The associate professor at University of Waterloo’s School of Optometry notes, “One of the problems facing the industry is how to keep innovations coming and make practitioners understand that they are indeed innovations. When manufacturers come out with something they claim is new and different every six-to-12 months, many people in day-to-day practice have a hard time understanding what exactly is new and improved about any particular lens.”

Steve Levy agrees. As the owner of LF Optical, a small chain of four stores in the Toronto area that carry a wide range of lens products, Levy employs eight opticians.  He says it is ‘extremely difficult’ to understand the finer points of distinction between new lens offerings. “One has to take a leap of faith to believe that one product will actually perform significantly better than another. With frames you can touch and feel and see the differences in material, design and quality. With new lenses, you have to be convinced that the distortion levels will be significantly better when each lens itself looks pretty much the same as any other.”

Levy also believes that fitting to the proper PD and height is just as important, and perhaps even more so, than lens choice. “An expensive lens poorly fit will perform worse than an inexpensive lens that is well fit.”

Chou thinks that manufacturers should communicate more clearly the precise optical value of their lens products. “Much educational material from manufacturers falls short in explaining what the lens accomplishes optically. I recognize that there are intellectual property considerations but eyecare professionals need to know what approach the company has taken in making the product in order for them to determine what lenses are suitable for their patients. When you look at the lens designs from an informed perspective, there are some really interesting innovations offered by all companies and they are distinctive. In order to understand these innovations, both prescribers and dispensers need to be better educated in lens technology.”

Clearly, a willingness to learn and be open to new lens technologies on the part of ECPs is the other part of the equation. And here Chou points out a sad reality: “Many optical professionals use only one or two manufacturers’ lens products and are not interested in looking at alternatives no matter what. It’s not necessarily anyone’s fault but if you have success with a product, it is understandable that you tend to use it time and again. You don’t have to think much, people are busy and inertia sets in. The reps can’t even get in the door in many instances.”

If you’ve read this far you are probably one of those ECPs who is truly interested in opening your mind, if not your door, to new lens products. Let’s see what’s on offer.

What’s Out There?

Riverside Opticalab is an independent lab that has been a leader in free-form lens technology for several years. Says VP of Research and Development Bruce Calhoun, “We enjoyed success beginning with our first generation Persona lens and are now into the fifth generation and still working on new creations. Our customers and their patients embrace it.”

Calhoun notes that an independent lab like Riverside can bring a product to market rapidly. They are, for example, the first lab to bring the new Transitions® Vantage™ lens to market in both single vision and in their own Persona family of lenses.Riverside also recently added a new propriety lens material known as HI-VEX. “HI-VEX is very friendly for offices that do their own edging,” explains Calhoun. “It is edged and tinted easily and is also very lightweight.”

Alain Després,Riverside’s vice-president of marketing, notes that quality control is key to Riverside’s success. “We have sophisticated quality control and audit check measures to ensure a reliable product. We take our business very seriously and our customers know that we are responsive if they need anything special or out of the norm.”

Hoya Lens Canada was thrilled with their ‘Best New Product’ award at Vision Expo East 2012 for the HOYA Distortion-Free Optics™ with the Avantek™ Mounting System. Distortion-Free Optics integrates lens materials, design, treatment and mounting system. In addition to eliminating the need for obstructive screws, wires or rims, the Avantek Mounting System offers superior durability in comparison to drill mounts. Hoya Canada Director of Marketing Maria Petruccelli says this package features a titanium-alloy frame in eight colours that beautifully showcase lenses that are absolutely distortion-free. “With the Avantek system, there’s no longer any reason to impede the wearer’s vision with screws and plugs on the lenses.”

The Avantek system uses tabs edged out from the lens, rather than screws or plugs. “Why drill holes into expensive premium frames when you don’t have to?” adds Petruccelli. “And from the ECP point of view, there is no need to tighten screws or replace plugs.”

Petruccelli notes that the Phoenix proprietary lens material is perfect for the Avantek system. “It also has an Abbe value of 43 so the visual clarity is excellent. The combination can really set a practice apart.”

Innova Medical Ophthalmics, the Canadian owned supplier of diagnostic and surgical equipment to the optical industry, took the bold step of opening a new lab facility and independent company – Occulab, in Montreal last November.

Why take this bold step in an era when the number of independent labs is dwindling? Wayne Stobie, director of marketing, explains: “We were hearing from ECPs that they want more choice. We decided to invest in the very best state-of-the-art technology available in North America. Our fully automated lab generates free-form lenses including a complete high-end coating facility. We offer edging, remote tracing and web ordering, so it is simple for people to do business with us. Our first priority is unrivalled quality and we’ve gone through a long quality control process with our new lens material known as Quatrex, which offers the benefits of Trivex® but none of the limitations. Many types of free-form lenses designs are available, including progressives geared to lifestyle, computer and sports, as well as special customized lenses upon request.”

Signet Armorlite’s Canadian Sales Manager Roberto DiFelice notes that their best seller by far on the digital front is the Kodak Unique, a full backside progressive with six corridors, starting from 13 mm fitting height. Why is it so successful? “The Unique is a design that works for most patients and it doesn’t require any extra dispensing measurements or equipment,” explains DiFelice. “The technology selects the corridor length for each patient’s Rx based on the frame size, monocular PD and fitting heights. This ensures the best overall visual performance for nearly any B measurement, large or very small.”

DiFelice adds, “The visual quality is often compared to single vision, while being a progressive. There is easy adaptation and a smooth gradation of the power across the surface, giving sharp, clear vision near, far and in-between.”

The Kodak Unique is available in many lens material options and multiple indices in clear, photochromic and polarized.

Rodenstock has a new interactive lens design technology — the Impression FreeSign®. “The dispenser designs the lens interactively with the client present,” explains Martin Bell, sales and marketing manager for Rodenstock Canada. The FreeSign program makes a complex calculation based on the wearer’s current prescription, her lifestyle needs and of course the prescription, and then comes up with a design that the practitioner and patient can view on the screen and discuss. It shows the visual field, which can be adjusted as new factors are brought into consideration.

The optics can also be adjusted for the base curve of the frame. “No matter what base curve you choose, the client will have the same excellent visual experience,” explains Bell.

The value of the Impression FreeSign is seen in the example of one patient, a truck driver, whose peripheral vision needs include both outward and downwards movements for a clear view of side mirrors while driving. “With the FreeSign program I can take that into consideration and customize the design so that his unique needs are met,” explains Bell.

There is no cost to have the program installed and Rodenstock supplies training. “But it’s not for everyone,” notes Bell. “We only want it in stores where a premium is placed on developing a relationship with the customer.”

Seiko has a new computer lens, the PCWide, available from Plastic Plus. “This is the perfect solution for anyone spending a number of hours a day at a desk,” says Plastic Plus President Paul Faibish.

The PCWide provides the benefits of a single-vision and no-line variable focus lens by using reverse power accommodation technology to control lens power in a precise manner. Sharp, clear vision at computer monitor distances allows wearers to adjust instantly to the smooth power transitions in the extra-wide intermediate portion of the lens. “This is a relatively inexpensive purchase that maximizes vision during the day,” notes Faibish. “And it gives the dispenser an opportunity to sell an extra pair of glasses that will provide immediate benefit to the customer.”

Look also for the Seiko Wrap Tech Thin lens, a free-form panoramic, aspheric and asymmetric design that corrects power error and astigmatism across the lens surface. “For high-base lenses there is nothing like this technology, which achieves the most aberration-free vision in a lightweight, thin, high-index material,” explains Faibish. “Fashionable curved frames require this lens, which is available in clear, polarized and Transitions.”

Nikon Optical’s Technical Consultant Chantal Gravel is understandably proud of the Nikon Optical Design Engine (NODE), which optimizes lens design. “All of Nikon’s research and development for every kind of lens, including cameras and telescopes, is automatically accessed by the optical division through the NODE system. Every time we receive a request to make a pair of lenses, all the order information – measurements, PD, frame dimensions and so on goes through the system and each lens is individually optimized and sometimes personalized, depending on the patient’s needs and ECP instructions.”

With SeeMax POWER AP, a personalized progressive lens, the combination of NODE optimization, advanced personalization and fitting parameters improves the field of vision by up to 20 per cent compared to the original SeeMax Power. “This is the ideal progressive lens for patients seeking the highest visual quality,” says Gravel. “We offer a good quality product for everybody but our major strength is sophisticated bi-aspheric technology. We produce the most sophisticated lenses so that ECPs have access to the latest technology for their patients.”

The name Oakley is synonymous with sports and three new sport-specific progressive lenses enhance Oakley’s reputation as the go-to company in this arena. Oakley True Digital Cycling, Golf and Fishing lenses are tailored specifically for each sport so that presbyopic athletes and enthusiasts enjoy their activities even more.

Each sport requires a different type of straight and peripheral vision and Oakley’s innovative technology optimizes for the vision needs critical to each sport. Light-filtering technology further enhances the sporting experience: reducing glare for cyclists, enhancing the image of the ball against both sky and greens for golfers, and reducing reflected glare for fishers. Even deep-sea fishers have a lens that deals with the intense midday sun when on the water.

Back surface reflections are addressed via Oakley Stealth™ AR, which improves overall lens clarity, in addition to front-side mirror coatings that reduce glare and balance light transmission. These lenses also look very cool – and that can’t hurt!

Younger Optics knows that NuPolar Trilogy provides unprecedented comfort and visual acuity in a lightweight lens product that meets the needs of virtually every customer. “In today’s competitive market you cannot afford to have a customer who is dissatisfied,” notes Marketing Manager Robert Lee. “On the other hand, satisfied patients are returning patients.”

Now that Younger can combine polarization with Trilogy, the sales opportunities are much expanded. “The last thing you want to see is a customer walking through your door with a pair of delaminated polarized sunglasses in their hands,” explains Lee. “This problem is now solved with Trilogy Polarized lenses.”

Trilogy lens material also provides excellent optical quality while being chemical- and impact-resistant, and providing UVA/UVB blocking. “Nor will it crack and break around stress points like some inferior materials,” adds Lee.

Anyone with edging on their minds needs to know about the WECO Edge 680, the newest patternless edger from the German brand WECO. Released in spring 2012, the Edge 680 gives the gift of high productivity combined with perfect edging results. Operators love the total control afforded by this machine, with a large, tiltable, intuitive touch-screen, which allows for easy use of the step-down beveling feature. High curve applications are accomplished with great ease, as is high-definition angled drilling and grooving. Speed and agility marry quality in this device, which is compatible with an extensive range of centering and tracing devices.

Another edging innovation comes from Briot USA. The Emotion, launched at Vision Expo East 2012, is an all-in-one technological wonder with features that include shape modification, customized grooves and angled drilling. With a simple touch screen interface, the Emotion represents the best in easy-to-use technology. You’ll no doubt be smiling as you meet difficult edging challenges with this advanced device.

Essilor is leading the sun protection field with the development of an Eye-Sun Protection factor (E-SPF) rating system. The impetus for the development of this system was the fact that a recent consumer survey in Europe showed that more than two-thirds of consumers are not aware that clear lenses offer UV protection. At the same time, more than 90 percent of respondents believed that such a system would be helpful.

Essilor’s E-SPF provides an objective, science-based index for eyewear, certifying the UV protection of a lens. Values vary from 2 to a maximum of 25 for clear lenses and 50+ for tinted as well as polarized sun lenses. With an E-SPF of 25, Crizal UV lenses reach the best level of protection in the clear lens category and outperform other lenses on the market. The E-SPF system is propriety to Essilor.

Also look for the Optifog™ lens from Essilor, which addresses the problem of lenses fogging up when the wearer moves from cold to hot temperatures in humid environments. Optifog lenses will be helpful for drivers as well as in professional (e.g. surgical) and industrial settings where foggy lenses can be problematic.

Vision-Ease Lens works for the working person with Continua FSV Safety Plus lenses, now available in both plus and minus powers. These are high-impact, 2.0 mm lenses aimed at industrial accounts where protective eyewear is both necessary and effective in reducing personal injury. The product excels because the thinnest point on any part of the lens is 2.0 mm, giving maximum protection and reducing the chance that a frame would become dislodged upon impact.

Continua FSV Safety Plus lenses are now available in +3.00 to -6.00 sphere to -2.00 cylinder. Safety Plus lenses in the range of +2.00 to +3.00 sphere and 0.00 to -2.00 cylinder have slightly flatter front curves than those previously produced.

Transitions Optical continues to break exciting new ground in lens technology with the development of Transitions® Vantage™ lenses with variable polarization. Leave it to Transitions to create a lens that polarizes gradually in response to light conditions. The Vantage is an everyday photochromic lens that starts out virtually clear and non-polarized indoors. When the wearer is outdoors, the lens responds by darkening and polarizing, optimizing the angle at which light reaches the eyes to help control glare and light scatter.

The molecules in conventional photochromic lenses darken in a random pattern, creating an even tint. The photochromic molecules in Transitions Vantage lenses not only darken, but also align to create polarization. This means Transitions Vantage lenses have a level of polarization that depends on the amount of UV exposure – the darker the lens, the more polarization there is.

Variable polarization provides added glare protection over and above traditional photochromic lenses. With AR added, Transitions Vantage lenses help to manage glare in all its many guises.

Kudos to Transitions – changing the paradigm once again!

Diabetes and Vision

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By Netan Choudhry, MD, and Jennifer George

eyeonhealthThe Canadian Diabetes Association estimates that almost nine million Canadians are currently living with diabetes or a precursor of the disease. Worldwide, three people are diagnosed with diabetes every 10 seconds.

Today, the leading cause of diabetes is excessive weight gain, making it one of the most preventable pandemics in the world. While the disease affects all of the body’s organs, the eyes remain its primary targets. Diabetic retinopathy is the leading cause of blindness among people 35-60 years of age. In 2008, it was estimated that approximately two million Canadians suffer from diabetic retinopathy, nearly all of whom will develop some form of diabetic eye disease.

Diabetes is caused by elevated blood sugar levels in the body, which damage the walls of the blood vessels. Diabetics are prone to developing eye and kidney diseases because these organs harbour the smallest blood vessels. Once damaged, the eyes experience poor blood flow and the contents of these blood vessels (blood and fats) gradually leak into the retina.

The retina is a very thin layer of nerve tissue located in the back of the eyes. Its function is similar to the film inside a camera, capturing images and sending them to the brain through the optic nerve, which serves as the battery in the camera. The gradual leakage of the retinal blood vessels results in the swelling of the retina, causing blurred vision. This poor flow of blood to both the retina and surrounding portions of the eye results in gradual ischemia, or death of the retinal (nerve) tissue, and the development of new abnormal blood vessels. The resulting abnormal blood vessels are fragile and bleed into the eye causing decreased vision loss, scarring and finally, blindness.

The treatment for diabetic retinopathy will vary based on the stage of the disease. In the absence of retinal swelling and abnormal blood vessel growth, the only required treatment is the strict management of one’s blood sugar. However, in the presence of swelling and abnormal blood vessel growth, a combination of medicine delivered into the eye and laser treatment is most effective. If the development of scar tissue occurs, resulting in the detachment of the retina, surgery is the only option.

Diabetic retinopathy may not produce symptoms of vision loss immediately; however, an examination may detect small hemorrhages in the retina. Early detection is key in preventing the progression of this disease. The best way to prevent diabetic eye disease is to strictly control blood sugar and involves both a healthy diabetic diet and exercise. With the help of a family doctor or endocrinologist (diabetes specialist), the patient can set goals for blood sugar, weight, cholesterol and blood pressure, and develop a healthy exercise regimen, all of which are key to preventing the complications of diabetes.

Additionally, all diabetics should have a retinal exam, which involves having the eyes dilated. Type I diabetics should schedule a retinal exam within five years of being diagnosed, while Type II diabetics should have an eye exam upon diagnosis of diabetes, continuing with yearly checkups thereafter. Retinopathy can progress quickly during pregnancy, so pregnant women with diabetes should schedule an appointment with their eyecare providers in the first trimester.

The management of diabetes starts with diet, exercise and routine follow-up with doctors. In general, a heart healthy diet is also good for the eyes. Controlling blood pressure and cholesterol, alongside blood sugar, will ensure that the patient’s eyes continue to see their best.

Italy’s Finest on Display

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By JoAnne Sommers

event_italiantradeAs a group of Canadian importers, distributors and retailers recently discovered, the term “Italian design” is synonymous with the very finest in craftsmanship, style and quality.

The companies participated in a Toronto workshop in mid-May that showcased the latest in Italian eyewear from producers new to Canada. A delegation of Italian designers and manufacturers representing eight companies attended the event, which was organized by the Italian Trade Commission in cooperation with the Italian Optical Goods Association (ANFAO).

Mehran Baghaie, operations director and chief designer at Spectacle Eyeworks, represented ASSOLUTO, whose collection of optical frames and sunglasses is crafted with Swarovski stones. “ASSOLUTO collections are well-priced, given their high quality, and the stones are very popular,” he said. “Everyone loves bling and they do it tastefully.”

Baghaie appreciated the fact that meetings were held by appointment only. “We had a guaranteed audience, unlike other shows where you sit waiting for clients to come to you.”

Swarovski was also featured in the Dario Martini collection presented by Martini Occhiali. The company distributes a wide range of metal eyewear for men, women and children in many different colours and its top product is an exclusive collection of women’s eyewear embellished with original Swarovski crystals.

Milano6769, a brand of Eye Technologies Group, presented a collection of hand-made frames polished with natural waxes and featuring attractive temple designs. The collection consists of 10 models in four colours each.

“The show was small but buyers were pleased because they didn’t waste time with suppliers offering different levels of quality,” said Roberto Iazzolino, Milano6769’s vice-president of International Sales. “We met only top buyers for top companies.”

“Eye Technologies Group has partnered with Quebec-based DirectLab Network to develop the lens business in Italy and will soon have a company in Canada specializing in lenses and frames,” said Iazzolino.

Trevi-Coliseum, the largest exhibitor, produces the Clark, Coliseum and Cotton Club lines. Their frames maintain handcrafted quality, combined with the latest technologies and exotic materials such as carbon fibre, wood, titanium and natural rubber.

G.B. s.r.l. specializes primarily in metal eyewear and NIK03® is their top brand. A leader in stainless steel, nickel-free frames, G.B. emphasizes quality while working to protect “Made in Italy” production.

Logoproject design employs cutting-edge designers who pay careful attention to materials and innovative manufacturing techniques in their eyewear collections. Logoproject is the exclusive worldwide licensee for Romeo Gigli eyewear, a wild, funky, colourful, and fun  collection of frames and sunwear.

Inspired by the latest fashion trends, Matinèe collections from Matinèe Maryla feature an original and unique style, with retro influences and contemporary flavours, in both material and design.

Ali Khan, optician and CEO of the Academy of Ophthalmic Education, said he much preferred the Toronto event to “big” shows like Mido because he wasn’t obligated to purchase hundreds of frames that might end up collecting dust. He also noted that it was a great way for professionals to differentiate themselves from their competitors.

Khan was very impressed with the quality of the products, notably the collection displayed by designer Lara D’Alpaos, an architect, who had has never distributed in Canada before. The design and materials of her Lara D. collection have been crafted to blend into a single  element that embodies the concept of wearability.

Organizers were pleased with the turnout of more than 200 visitors, including Mido Marketing Manager Francesco Gili. Congratulations go to Italian Trade Commissioner Pasquale Bova and his wonderful team for the success of the event. The Italian Trade Commission and ANFAO are already planning next year’s workshop, which is tentatively scheduled for Montreal in late May or early June. Stay tuned.

Ecological Frames for the Swing Collection

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Ecological Frames for the Swing Collection

The arguments are substantive: frames made from an ultra-light memory material, almost unbreakable and impact resistant, Grilamid TR 90, which is hypoallergenic and antibacterial, coloured by food dyes. Added to that are interchangeable temples offered in a beautiful variety of colours. The brand new Swing collection is distributed by Importlux.

This trendy collection is suitable for both teens and adults. There are also models for children and infants that include retainer cords. There is a vast selection of appealing colours, shapes and sizes to choose from, all at competitive and affordable prices.

Tartine et Chocolat: A Timeless Collection for Today’s Chic Youth

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Tartine et Chocolat: A Timeless Collection for Today’s Chic Youth

Prisme Optical Group presents and distributes the new collection of ophthalmic and sun eyewear for children, Tartine et Chocolat. The company’s president,RichardStortini, is delighted to offer stylishly refined eyewear that respects the specific needs of this young clientele.

Since its creation in 1977, the French brand has devoted itself to the world of children, placing an emphasis on chic, timeless style and beauty. Tartine et Chocolat quickly charms parents with its line of elegant and relaxed clothing, which breathes softness.

In 2002, Emilie Zannier turned the label into a world leader in top-of-the-line children’s clothing and accessories. Tartine et Chocolat eyewear embodies this spirit by offering trendy models with fine details that echo the ready-to-wear clothing line, like the rhombus, the bow or different insignias. An accent on acetate allows the ophthalmic and sunwear lines to play up the depths, the colours and the nuances. Certain models adopt the vintage look that is currently a fashion trend.

The collection is comprised of nine ophthalmic models and eight sunglasses, all out of acetate and offered in a choice of three colours.

“So much refinement is sure to inspire jealousy”, addsRichardStortiniwith a smile. “And there’s no need to break the bank. The price range is very affordable.”

Photographs of the frames as well as samples are available through the distributor.

New Lab Location in Mississauga

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New Lab Location in Mississauga

Riverside Opticalab is pleased to announce the opening of a new ophthalmic laboratory, located inMississauga,Ontario. Bringing three decades of optical expertise to the table, this new lab is conveniently and centrally located to provide easy access for both clients and courier services.

In 1976, Riverside Opticalab set up its Canadian ophthalmic division, with its head office and laboratory inOttawa,Ontario. Over the years, the company opened other ophthalmic laboratories inMontreal,QuebecandWaterloo,Ontario.

In 2012, the company committed to the opening of a laboratory located at2382 Dunwin Drive, inMississauga. The decision was made to address the rapid expansion of theOntariomarket and offerRiverside’s products and services to the Greater Toronto Area.

As one of the most advanced ophthalmic companies inCanada, Riverside Opticalab has become the laboratory and manufacturer of the Persona and Signature HD high definition lenses. The company offers a complete range of multi-brand lenses that will satisfy the simplest to the most complex ophthalmic needs.

Nikon Improves and Expands

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Nikon Improves and Expands

Today’s digital screens are usually equipped with power light sources such as Light Emitting Diodes (LED). Long exposure to this light can increase eye strain. To address this problem, Nikon now offers SeeCoat Blue, an alternative coating specifically designed to cut blue light by 10 per cent. SeeCoat Blue improves contrast and reduces screen brightness, flickering and eye fatigue, offering a stress-free visual experience.

SeeCoat Blue transmits 97.5 per cent of light, which equates to that of a standard AR coating.

All other features of SeeCoat Plus are maintained, so that in addition to cutting blue light SeeCoat Blue provides scratch resistant, anti-static, anti-reflective and smudge resistant properties. 

SeeCoat Blue is available on all Nikon Rx single vision, Nikon Relaxsee, Nikon Online and on all Nikon premium progressives (SeeMax Power AP, Presio Power and Balance Digital). 

Furthermore, in response to the ever-increasing demand for high base frames, Nikon introduces bases 3, 4, 5, 6 and 7 on Balance Digital 12. Fitting the wrong lens curve in a given frame creates warpage and distortion. These new base options now allow the transfer of a given prescription to a different base curve to match the frame’s profile.

Balance Digital 12 1.60 is now available in bases 4 and 7 for its polarized version from total sphere -6.00D to +7.00D, cylinder -6.00 up to an addition of +3.50D, as well as, in bases 3, 5 and 6, for its clear and Transitions® versions from total sphere -8.00D to +5.00D, cylinder -4.00 up to an addition of +4.00D. 

Balance Digital is available with its renowned Nikon coatings SeeCoat Plus, HCC ICE and HCC in addition to SeeCoat Blue.

Balance Digital is offered in 10-mm, 12-mm and 14-mm corridor lengths in a choice of index 1.50, 1.60, 1.67 and 1.74, in both clear and Transitions, with polarized 1.60 available in corridors 12-mm and 14-mm.

Flower Power

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Flower Power

Spring is upon us, and the little fashionistas will love the cool and colourful frames by Float Kids (a premium brand under the Exotiq Collections). The collection is kid-approved, with a range of stylish frames in geometric shapes, unique embellishments and trending colour palettes. Float Kids is European designed with the highest quality components and materials to ensure durability and another day in the park.

A favourite for the “little miss sunshine” is model Float Kids KP 223. This frame is a blooming dream in brushed copper and cream (shown), with a delicate touch of pink.  The fresh daisy temple embellishment pairs beautifully with the geometric-chic front shape. She will be the hippest and cutest of the bunch. This flower power frame is also available in violet/purple.