As we enter the fall season, our team at Contact Lens Spectrum begins planning for our Annual Report, which we publish each year in our January issue of the journal. The Annual Report is filled with tips and trends about all that is going on in the contact lens industry. We appreciate hearing from you as well. If you think of anything that we should cover relative to the world of contact lenses, please email us at firstname.lastname@example.org.
Jason J. Nichols, OD, MPH, PhD
SpecialEyes Algorithm Added to
Volk Eye Check
SpecialEyes, LLC announced a new partnership with Volk Optical, which has integrated SpecialEyes’ Arc Length Calculator with the Volk Eye Check device. Powered by IRISS Medical Technologies, Volk Eye Check now incorporates SpecialEyes’ sagittal-depth fitting algorithm to assist eyecare practitioners in designing and fitting custom contact lenses.
Volk Eye Check’s Contact Lens (CL) mode allows practitioners to easily obtain key ocular measurements for each patient and upload them to a server, where the SpecialEyes Arc Length Calculator processes the data. The calculator’s fitting algorithm then identifies potential custom contact lens designs based on the patient’s unique measurements, including HVID, pupil size, and sagittal depth. Finally, the system generates a customized contact lens report and best-fit analysis with a list of custom lens options, including SpecialEyes 54 Sphere, 54 Toric, and 54 Multifocal contact lens designs.
For additional details on the Volk Eye Check device, visit Volk at booth number 1214 at the American Academy of Optometry meeting in New Orleans or see http://www2.volk.com/specialeyes. To learn more about SpecialEyes’ custom sphere, toric, and multifocal contact lenses, visit http://www.specialeyesqc.com.
1-Day Acuvue Moist Multifocal Contact Lens Wins SILMO d’Or Award
Johnson & Johnson Vision Care, Inc. was recently awarded the prestigious SILMO d’Or vision award for its new contact lens for presbyopia, 1-Day Acuvue Moist Brand Multifocal Contact Lens. This is the fifth SILMO d’Or win for the Acuvue brand.
SILMO, The International Optical Trade Show, acknowledges the most significant technological innovations each year with its SILMO d’Or awards. The juried awards were chaired by international designer Emmanuel Gallina, and recognized 10 winning products in nine categories. The 1-Day Acuvue Moist Brand Multifocal won the Vision category for contact lenses. Other award categories included Material and Equipment; Low Vision; Children; Optic Frame; Sunglasses; Sports Equipment; Frame Technology; and a Special Reward. The SILMO d’Or awards have been handed out since 1994.
According to the company, the 1-Day Acuvue Moist Brand Multifocal is the only multifocal contact lens that has been created with uniquely optimized optic designs to address the natural variations in pupil size according to age – and refractive power. With 1-Day Acuvue Moist Multifocal, 94% of patients are successfully fit with two pairs of lenses or less. The product launched in Europe and the U.S. earlier this year.
Don’t Miss the 10th Global Specialty Lens Symposium
The 10th Global Specialty Lens Symposium will be held January 21 – 24, 2016 at Caesars Palace Las Vegas, Nevada. The GSLS is a must-attend meeting, brought to you by Contact Lens Spectrum, focusing on the successful management of ocular conditions using today's specialty contact lenses. This meeting will include insightful presentations by international experts in the field, hands-on demonstrations of cutting-edge products and valuable continuing education credits.
The 2015 event was attended by almost 600 registrants from 36 countries, 42 states, Puerto Rico and Guam. It continues to be the largest conference of its kind in the U.S.
Join your peers in 2016 for the 10th anniversary in Las Vegas! Visit www.GSLSymposium.com for more information and to register.
Solotica Launches Zenlens in Brazil
Alden Optical announced that its licensing partner Solótica Lentes de Contato has launched Zenlens, Alden’s scleral design, into the Brazilian market. This launch is the result of an extensive evaluation and development project to manufacture Zenlens under license in Brazil. Brazil represents the 5th largest country with respect to population while Solotica is the largest Brazilian contact lens manufacturer.
URSAPHARM and Novaliq Announce European Market Launch for EvoTears Eye Drops
URSAPHARM, one of the leading European companies in the field of ophthalmology, and Novaliq, a clinical stage specialty pharma company with a disruptive drug delivery technology platform focusing on ophthalmology, jointly announced a partnership agreement as well as the initial European launch of EvoTears, a new OTC treatment for dry eye disease.
As part of the agreement, URSAPHARM obtains the exclusive license for the European market commercialization of EvoTears, Novaliq’s first commercially available ophthalmic product for the treatment of evaporative dry eye diseases.
EvoTears, the first product based on Novaliq’s proprietary EyeSol Technology, is an innovative multi-dose, non-aqueous and preservative-free topical eye drop formulation for the lubrication of the ocular surface. The EvoTears droplet forms a thin and smooth protecting film supporting the lipid layer in its function to prevent tear evaporation for the relief of dry eye and irritated eyes symptoms. EvoTears has been classified as a classⅡmedical device and received CE mark approval in Europe in July 2013. According to the company, in an open, prospective, uncontrolled post-market clinical study the product successfully demonstrated effectiveness and safety in relief of dry eye symptoms. All results of the study point towards excellent clinical performance, safety and very high convenience and acceptance of EvoTears for patients suffering from hyper-evaporative dry eye. For more on Novaliq visit www.novaliq.com.
Corneal Neovascularization Colton Heinrich, OD, Fullerton, CA
This patient was referred for a new contact lens fitting due to a tight fitting corneal gas permeable lens of the left eye. The patient had undergone LASIK surgery in both eyes in 1999. Post operatively the patient was informed that she had developed “recurrent astigmatism” and would likely require a corneal transplant. The patient denied any complaints with the current lenses and reported that she was referred because there were dry spots on her eyes. She reported that she has never been diagnosed as having corneal neovascularization. Note neovascularization running along flap edge.
We thank Dr. Heinrich for this image and we welcome photo submissions from our other readers! It is easy to submit a photo for consideration for publishing in Contact Lenses Today. Simply visit http://www.cltoday.com/upload/upload.aspx to upload your image. Please include an explanation of the photo and your full name, degree or title and city/state/country.
OCULAR SURFACE UPDATE Katherine M. Mastrota, MS, OD, FAAO
Demodex and Eye/Eyelid Disease…The Controversy Continues
Many clinicians are convinced that Demodex mites precipitate skin, eye/eyelid disease…dry eye, chalazion, blepharitis, and corneal disease to name a few. Others would profess that Demodex are innocuous skin commensals that have been erroneously targeted for eradication by clinical caregivers. Research on Demodex is interesting, lending evidence to both arguments regarding Demodex and its role in disease. In my opinion, the truth probably lies somewhere in between.
The aim of a recent study1 was to determine if Demodex infestation is more frequent in contact lens wearers than in non-wearers. Secondary aims were to evaluate the effects of Demodex on the ocular surface (symptoms and signs) and to evaluate the ability of confocal laser scanning microscopy and light microscopy to detect and quantify the Demodex infestation compared with the conventional light microscopic technique.
Forty participants (20 non-wearers, 20 lens wearers) were in the study. Ocular comfort scores, vital staining (corneal, conjunctival, and lid wiper), tear osmolarity, tear breakup time, and meibomian gland evaluation were evaluated. Demodex was detected using in vivo confocal microscopy and conventional light microscopy.
The number of Demodex was higher in lens wearers than in non-wearers. Demodex was observed in a large majority (90%) of lens wearers and in 65% of non-wearers using confocal microscopy. The detection rate was lower in both groups using conventional light microscopy where Demodex could only be confirmed in 70% and 60% of lens wearers and non-wearers, respectively. The number of Demodex tended to increase with age but Demodex did not appear to affect ocular comfort or any clinical signs. The authors conclude that contact lens wearers harbor Demodex as frequently as non-wearers and in higher numbers, which is best detected using in vivo confocal microscopy. The significance of these findings is uncertain because no associations were found with any symptoms and signs of dry eye disease.
So there you are---another finding to ruminate upon. What interests me most about this study is the improved detection rates of Demodex with confocal microscopy vs. light microscopy that illustrates the difficulty clinicians may have in identifying the mite without specialty instrumentation.
Jalbert I, Rejab S. Increased numbers of Demodex in contact lens wearers. Optom Vis Sci. 2015 Jun;92(6):671-8. doi: 10.1097/OPX.0000000000000605.
We Don’t Know What We Don’t Know…
Contact Lens Wearer Risk Behaviors for Contact Lens Related Eye Infections in the United States (Part 2)
In my last column we reviewed the recently reported results from the Center for Disease Control (CDC) on the outcomes of a survey of contact lens wearers to evaluate the prevalence of risk behaviors for contact lens related infections.1 Based on the results from the survey, along with literature review and consultation with numerous professional organizations, the CDC made the following recommendations to reduce the risk for contact lens-associated complications:
Contact lens habits and hygiene
Never sleep in contact lenses unless advised to do so by an eye care provider.
Keep all water away from contact lenses. Avoid showering while wearing contact lenses, remove them before using a hot tub or swimming, and never rinse or store contact lenses in water.
Contact lenses and supplies
Replace contact lenses as often as recommended by an eye care provider.
Discard used solution from the contact lens case and clean it with fresh solution, never water, every day. Store contact lens case upside down with the caps off after each use.
Replace the contact lens case at least once every 3 months.
Eye care provider involvement
Visit an eye care provider as often as recommended by your primary health care provider.
Remove contact lenses immediately and call an eye care provider if you are experiencing eye pain, discomfort, redness, or blurred vision.
Carry a backup pair of glasses with a current prescription in case contact lenses need to be removed.
As eye care practitioners we often are not aware of the daily habits of our patients. This report brings to our attention the frequency of risky behaviors that our contact lens wearing patients are performing on a daily basis. By properly educating our patients we can have a significant positive impact on the likelihood of safe and effective contact lens wear. As the old saying goes “an ounce of prevention is worth a pound of cure.”
1. Cope JR, Collier SA, Rao MM, Chalmers R, Mitchell GL, Richdale K, Wagner H, Kinoshita BT, Lam DY, Sorbara L, Zimmerman A, Yoder JS, Beach MJ. Contact Lens Wearer Demographics and Risk Behaviors for Contact Lens-Related Eye Infections - United States, 2014. MMWR Morb Mortal Wkly Rep. 2015 Aug 21;64(32):865-70.
Demonstrating Correction of Low Levels of Astigmatism with Realistic Scenes
Modern standard visual acuity tests are primarily designed as diagnostic tools for use during subjective refraction and normally bear little relation to real-world situations. The authors have developed a methodology to create realistic rendered scenes that demonstrate potential vision improvement in a relevant and engaging way. Low-cylindrical refractive error can be made more noticeable by optimizing the contrast and spatial frequencies, and by testing four different visual perception skills: motion tracking, pattern recognition, visual clutter differentiation and contrast sensitivity. Using a 1.00DC lens during iteration, they created a range of still and video scenes before optimizing to a selection 3-D rendered street scenes. These were assessed on everyday relevance, emotional and visual engagement and sensitivity to refractive correction for low-cylinder astigmats (0.75-1.00DC, n=74) wearing best spherical equivalent correction and then with astigmatism corrected.
The most promising visual elements involved or combined optimized textures, distracting patterns behind text, faces at a distance, and oblique text. 91.9% of subjects (95% CI: 83.2, 97.0) reported an overall visual improvement when viewing the images with astigmatic correction, and 96% found the images helpful to determine which type of contact lens to use. The researchers concluded that their method, which combines visual science with design thinking, takes a new approach to creating vision tests. The resultant test scenes can be used to improve patient interaction and help low cylinder astigmats see relevant, every-day benefits in correcting low levels (0.75 & 1.00DC) of astigmatism.
Milton A, Murphy M, Rose B, Olivares G, Little BK, Lau C, Sulley A. Demonstrating correction of low levels of astigmatism with realistic scenes. Cont Lens Anterior Eye. 2015 Aug 17. pii: S1367-0484(15)30015-1. doi: 10.1016/j.clae.2015.07.004. [Epub ahead of print]