Sunday 4 November 2018

Top Lens Tech for 2018 – Brands in focus

Courtesy: Optical Prism
As 2018 rolls out, the top lens manufacturers in Canada are focusing on their technological advances in the field, while at the same time bringing unique offerings that set themselves apart from their competition.
Eye protection from UV radiation and blue light continues to be a focus alongside quality and utility required by eyeglass wearers who depend on their products day in and day out. And by providing these options, eye care professionals continue to have a healthy variety of options to choose from to meet patient needs.
Optical Prism set out to ask Essilor, Centennial, Plastic Plus and Transitions brands what their ‘latest and greatest’ in lens technology looks like for 2018. The brands each aim to put their best foot forward into the New Year, discussing the quality, advantages and diversity of their offerings that will showcase what they’ve been working on to add to their stake in the eyecare industry.
Essilor brings to the table both its Varilux X Series and Eye Protect System for 2018.

A Silmo d’Or winner in October 2017, the Varilux X series progressive lenses remain the leading innovation in their field and were developed to meet the needs of all presbyopes who are active in their personal and professional lives, and avid users of digital tools.
Thanks to the Xtend technology design innovation, Varilux X series lenses no longer require wearers to move their head to find the right viewing angle,” says Kristel Bordeleau-Tassile, marketing manager for Varilux.
The combination of the technology with a new calculation system enables Essilor to design lenses with greater precision in order to meet the need to see clearly at multiple distances on the same axis of vision, especially within arm’s reach, where the majority of daily activities take place.
Meanwhile Essilor’s Eye Protect System includes product combinations guaranteed to block at least 20% of harmful blue light, whether the lenses are clear or adaptive, and to offer a minimum UV protection of E-SPF 25 with its Crizal technology.
Our exposure to harmful blue-light keeps increasing because of our lifestyle,” says Nathalie Boisvert, product marketing manager. “That’s why, inspired by its mission to improve lives by improving sight, Essilor created Eye Protect System. It provides the optimal visual solution for the short and long-term eye health of consumers.”
Essilor’s goal is to provide consumers with a global solution to protect their eyes against both harmful UV and blue light.
Plastic Plus Factory
For 2018 Plastic Plus says it’s proud to showcase Vandelay Camber as a new family of lenses calculated by Camber Technology, combining complex curves on both surfaces of the lens to provide excellent vision correction.
The unique continueously changing surface curvature of the specifically designed lens blank allows expanded reading zones with improved peripheral vision.
“This lens is beneficial for ‘plus’ patients and it offers a dual-sided technology,” says Plastic Plus president Paul Faibish. “On the backside we process a digital design and the front side Camber has a variable base curve.”
Faibish says this means a perfect base curve for each visual zone.
“This unique technology results in better vision, thinner lenses, expanded visual fields and superior optics,” he says.
The lens allows for better vision because the exclusive front surface matches perfectly with the back digital design and is 100% customizable. This also allows for great visual acuity in near vision for better comfort.
The full family of Camber lenses allows Plastic Plus the ability to create a customized portfolio for eyecare providers to differentiate from others while adapting to their market needs.
“Plastic Plus leads the industry in offering lens technology from multiple manufacturers,” says Faibish. “We also proudly manufacture all our lenses in Canada in our state of the art facility and send no work offshore.”
In the 21st century, Centennial’s lens business has evolved over 50 years with the introduction of new free-form digital technology so that, while semi-finished lenses remain an important part of their product, a large proportion of these lenses are dedicated to producing digitally customized progressive and office lenses.
Centennial provides uncut digital lenses under its own house brands of CHOICE and Centoptic, as well as designs from some of the best-known optical brands, to meet all of our customers’ needs.
What makes Centennial’s lens business unique in Canada is that, rather than being a manufacturer of one brand of lens products, the company operates independently but in partnership with competitors who are also suppliers and customers, and Centennial is in turn a supplier and customer to competing lens manufacturers.
“The next big technological shift in the optical industry will likely be the application of 3D printing technology to the production of both lenses and frames,” says Centennial’s Rick Leroux. “While the technology is still in a relatively experimental phase at present, it has the potential to be a hugely disruptive force, simultaneously providing exciting new possibilities for our industry. Centennial is committed to continue evolving to best meet its customers’ requirements, whether the new technology is in the product itself, how it is manufactured, or in simply making it easier for its customers to order and receive the products to best meet their clients’ needs.”
Leroux says Centennial’s aim is to provide a one-stop source of supply and same-day shipping for a vast range of ophthalmic lens products and, if a specialty product is not stocked in one of Centennial’s three lens warehouses, it can usually be special-ordered for the customer.
In 2018, Transitions Optical is going to continue put a focus on the style aspect of Transitions lenses.
“The protection benefits of Transitions lenses like filtering UV and harmful blue light are a common topic of discussion, however the style aspect of Transitions lenses is often overlooked,” said Patience Cook, director of Transitions Optical North America marketing. “Eyewear is a unique product where style and health intersect, so in 2018 we are going to help eyecare professionals show their patients how the different lens colours available from Transitions can help them create their own unique look.”
Transitions – Live the Good Light
At the end of 2017, Transitions Optical created style materials that provide eyecare professionals with tips for finding the style in eyewear and merchandising their office space to better display eyewear options to patients. These include the Lens Style Guide, the Style One-Page Handout and ABO Course presentation that can be downloaded online by ECPs to teach them about the latest trends, fashion and focus on not just frames, but lenses as well
Eyewear has evolved from a functional product to an important style component. To help ECPs build their practice and take advantage of the opportunities an uptrend in style presents, Transitions Optical created the tools to help ECPs become more knowledgeable about the lens style arena and provide information on how to style Transitions lenses – including frame and lens combinations and colour matching.
“Patients may not be aware of some of the options you are able to offer, like pairing a Transitions XTRActive lens with a flash-mirror coating to complement the different levels of tint,” says Cook.

Thursday 18 December 2014

What’s so special about specialty lenses?



Advancements in specialty lens manufacturing have made it possible for more patients to wear contact lenses


December 16, 2014
By David I. Geffen, OD, FAAO

Increasingly, many practitioners in today’s practices are using specialty contact lenses. These contact lenses historically have been viewed as hard to fit, difficult to find, and much higher in cost. Let’s look at what’s so special about specialty contact lenses.

Extended-range lenses


What determines that a lens is a “specialty” lens? There are many categories of these lenses and way too many to list every brand and manufacturer. The most common specialty lenses are the lenses which fall out of the parameters of normally available lenses in a category. These would be lenses that are higher in spherical power than the company normally manufactures. Biofinity (CooperVision) is a typical lens in this category. Biofinity spheres are available from +6.00 D to -10.00 D—a very large range, which is good for the vast majority of patients. The Biofinity XR or extended range lens is now available from +15.00 D to -20.00 D.



Dr. Geffen: The value of a contact lens patient


Most doctors and manufacturers consider these extended-range contact lenses to be specialty lenses. These lenses allow us to serve the need of our patients who fall out of the normal parameter ranges. These are ordered and manufactured on an as-ordered basis at this time so you may need to wait up to a few weeks to receive these lenses. There are also a number of smaller specialty lens companies that manufacture lenses on an as-needed basis. These companies have thrived in providing eyecare practitioners with lenses with most any power or base curve or diameter a patient may need. They also can get these lenses to patients in a few days.

Toric and multifocal lenses


Toric lenses are the next category of specialty lenses. Like spherical lenses, the major manufactures have a limited power range typically from +6 to -9 with 3 or for cylinder powers. The typical cylinder limit for readily available toric lenses is -2.25 D. Smaller labs are able to fill in the gaps and make a toric lens for our patients with almost any axis or power we need. These lenses are available in a few days to our patients.

Multifocal lenses are also available in many custom designs from small contact lens manufacturers. Some ingenious designs have come out of these labs and we can serve many more patients than ever before.
Lenses for irregular corneas

Now let’s cover some of the truly special designs coming out of smaller labs. Lenses for irregular corneas are changing the way we think about providing excellent vision and comfort to our patients. These lenses have provided a way for doctors to care for those patients who cannot or will not wear rigid gas permeable (RGP) lenses. Bausch + Lomb brought us the Kerasoft soft contact lens for irregular corneas. Kerasoft is available in a wide range of custom parameters and base curves to correct the irregularities in the cornea caused by keratoconus, surgical imperfections, and disease.

Dr. Geffen: R&D needed for new gas perm car systems, materials


Another lens in this category is NovaKone from Alden Optical, one of several specialty contact lens labs that have made great innovations in soft lens designs. NovaKone comes in any custom base curve you would like and has different center thickness parameters to correct for irregularities. There are several other lenses of these types from great-minded individuals creating new and improved contact lenses for every need.

What makes them special


So why are these lenses special? They seem to be treated as devices only certain doctors are allowed to use. They have a reputation as being difficult and eating up too much chair time for many doctors. However, because specialty lens companies are utilizing very advanced manufacturing processes, the reproducibility and quality has never been better. You can have the confidence that the patient will not be calling your office complaining about the lens. These lenses do take a little more time and thought. Specialty contact lens company consultants are excellent partners in your practice—they want you to succeed and make it as easy as possible. The cost of the lenses is higher than standard lenses, and this is a concern for many doctors. Remember that these patients know that they are not the usual contact lens wearer and know that they have special needs. As such, they expect to spend more for both your expertise and the cost of the device. Optometrists are notorious for not charging enough for our expertise and time. We need to be compensated for the extra knowledge and study we do to learn about these special lenses and the time we spend without patients.

So what is so special about specialty contact lenses? I can answer that question only one way. These lenses are so special because we are truly changing the life of patients who has sought our expertise to improve their quality of life!

Saturday 15 February 2014

Tips for handling digital eye strain


Digital eye strain is caused by the overuse of digital devices such as computers and smart phones. Because these electronic devices are designed to be used and held within close range of the eyes, after a while, the eyes become strained as they continue to refocus to process the images on the digital screen.

According to organizations like The Vision Council, more than 70% people don’t know or don’t believe they are at risk for digital eye strain; however, anyone who is in front of a digital screen is vulnerable. Red eyes, twitching eyes, dry eyes, blurred vision, headaches, neck pain, decreased productivity and increased work errors, fatigue from staring at a digital screen, and straining to see small fonts and images are some of the signs and symptoms that occur when experiencing digital eye strain.

“In our fast-paced society, most people use a computer throughout the day while they’re at work, and they also go online to communicate with friends, read books, and even pay bills.”






“It’s just the way we operate in the 21st century. Nevertheless, people can stay digitally connected and also maintain the health of their eyes.”


Optometrists suggests following tips for avoiding digital eye strain:

1. Follow the “20-20-20 rule.” Be mindful of the amount of time that is spent looking at a computer screen without taking a break. Every 20 minutes, take a 20-second break and look at something that is 20 feet away. Looking far away relaxes the focusing muscle inside the eye and reduces eye fatigue.




2. Reduce glare. People often see reflections from objects around their computer on their computer screen. Install an anti-glare screen on the computer monitor to reduce glare on the screen. Cover windows with drapes and blinds, and use a computer hood to block some of the overhead and peripheral light. Get anti-reflective (AR) coating on eyeglass lenses.




3. Work in proper lighting. When looking at a digital screen, the surrounding light should be half as bright as what is typically found in most offices. Try to position the computer screen so windows are on the side (instead of in front or behind) the computer screen. If the interior lighting is a concern, consider reducing the number of fluorescent tubes that are installed above the computer. Also consider turning off the overhead fluorescent lights in the office and use lamps that provide halogen or incandescent lighting, or switch to lower intensity bulbs.

4. Blink often. People tend to blink less often when they look at a computer screen—approximately one third less often as they normally blink—and a lot of the blinking that takes place when looking at a digital screen are only partial lid closures. Blinking less often can cause the eyes to become dry. To reduce the chances of experiencing dry eyes when looking at a digital screen, try this exercise: Every 20 minutes, blink 10 times by closing the eyes very slowly, as if falling asleep. This will moisten the eyes, and it will also help the eyes refocus.

5. Revise the workspace. When working on a computer, people often look back and forth between the computer screen and a printed page, which can cause eye strain. To alleviate the stress and strain on the eyes, put the printed pages on a copy stand that is next to the computer monitor. Make sure the paper on the copy stand is well-lit by using a desk lamp. Poor posture can also lead to problems with clearly seeing a digital screen. Consider purchasing ergonomic furniture where the computer screen is positioned 20 to 24 inches from the eyes. The center of the digital screen should be 10 to 15 degrees below the eyes.


6. Get a regular comprehensive eye exam. Computer users should have eye exams once a year. Before the exam, be sure to measure the distance between the eyes and the digital screen. Share that measurement with the eye care provider, and remember to let the doctor know how often computers and smart phones are used.