As noted previously, Contact Lens Spectrum and PentaVision Media have launched the Global Myopia Symposium, which is intended to address all aspect of the global myopia epidemic. This first meeting will be held on Jan. 20, 2021 in Las Vegas (www.gmsymposium.com). Just this week, we announced our first call for Continuing Education (CE) courses: https://www.eiseverywhere.com /website/10410/call-for-proposals. We are excited to see a robust engagement about myopia education and look forward to seeking your input on this exciting educational program!
Jason J. Nichols, OD, MPH, PhD
Treehouse Eyes Opens Five Additional Locations
Treehouse Eyes announced the opening of five new centers. In collaboration with select practices, Treehouse Eyes is bringing its proprietary brand of myopia management into those practices. The latest practices to join the growing Treehouse Eyes network are Lumen Optometric, Dr. Eric To, Sierra Madre, CA; Eye to Eye Optometry, Dr. Elaine Linder, Antioch, CA; Diamond Vision, Dr. Shane Galan, Rockville Centre, NY; River Oaks Family Optometry, Dr. Elaine Chung, San Jose, CA; and Warm Springs Optometric Group, Drs. Michael Fauria and Susan Pirrone, Fremont, CA.
Essilor Offers Free Webinars
Essilor Custom Contact Lens Specialists is bringing back more webinars as part of its “Focus on Education” series. Each class will be hosted by Howard Purcell, OD, president and CEO of the New England College of Optometry. Upcoming sessions include “Getting the Most Out of Presbyopic GP Lenses,” on March 18 at 8:00 p.m. EST, presented by Thomas G. Quinn, OD, MS; and “Building a Specialty Lens Practice with Staff Training at the Core,” on April 21 at 8:00 p.m. EST, presented by Katie Greiner, OD, MS, MBA. To register or to check out past webinars, visit http://essilorcontacts.com/Content.aspx.
Eyevance Pharmaceuticals Appoints Julie Speed as Chief Commercial Officer
Eyevance Pharmaceuticals announced the appointment of Julie Speed to the position of chief commercial officer. In her new role, Ms. Speed will be responsible for developing the commercial strategy and overseeing the growth of Eyevance’s product portfolio, including Flarex (fluorometholone acetate) 0.1%, Freshkote Preservative Free Tear Lubricant, Zerviate (cetirizine ophthalmic solution) 0.24%, Tobradex ST (tobramycin/dexamethasone ophthalmic suspension) 0.3%/0.05%, and Natacyn (natamycin ophthalmic suspension) 5%. Ms. Speed will join the Eyevance Executive Leadership team and report directly to Eyevance’s CEO.
Most recently, Ms. Speed served as senior director, US Marketing at Johnson & Johnson Vision. Prior to that, she served as vice president of Global Marketing at TearLab Corporation. She also spent more than 15 years at Alcon.
Smart Contact Lens Sensor Developed for Point-of-Care Eye Health Monitoring
A research group led by Prof. Xuemin Du from the Shenzhen Institutes of Advanced Technology (SIAT) of the Chinese Academy of Sciences has developed a “smart” contact lens that can show real-time changes in moisture and pressure by altering colors. The lens can potentially be used for point-of-care diagnosis of xerophthalmia and high intraocular pressure.
This contact lens features periodic nanostructures within the poly(2-hydroxyethyl methacrylate) (pHEMA) hydrogel matrix, resulting in bright, tunable structural colors ranging from red to green to blue. This structurally colored contact lens sensor is made solely from a biocompatible hydrogel, without the addition of any chemical pigments, thus exhibiting superior biosafety and comfort for wearable applications, according to the researchers.
The spacing of periodic nanostructures within the pHEMA hydrogel is sensitive to changes in moisture and pressure, leading to real-time color changes in the “smart” contact lens. Additionally, a linear decrease in the wavelength of the reflectance peak of the cosmetic contact lens is observed when human intraocular pressure changes in the pathological range.
We Value Your Input
Contact lens (CL) practice across the world is at a critical juncture, with some potential opportunities (such as contact lenses for myopia control, multifocal lenses for presbyopia, and specialty lenses) along with looming threats (such as increasing competition from online business). Anecdotal discussions with eyecare professionals have revealed different levels of optimism regarding the future of CL practice.
Hence, a partnership between Contact Lens Spectrum and organizations across the world—including the International Association of Contact Lens Educators and the British Contact Lens Association—has formed to better understand these issues.
To help us gather what you perceive to be the opportunities and threats to CL practice, please take about 5 minutes to fill out this survey: https://forms.gle/7gPWKQemgnivZ6oH8. The findings of this study will help the industry to design targeted strategies to enhance CL practice and address the perceived threats.
Global Myopia Symposium – Call for CE Abstracts
The Global Myopia Symposium (GMS) Program Committee invites the submission of one-hour continuing education courses for consideration for the GMS 2021, which will take place in Las Vegas on Jan. 20, 2021. Courses can cover all aspects of myopia and its management in addition to related topics such as epidemiology, controversies, risks-benefits, diagnosis and treatment approaches, and practice management. Note: The submission window will close at 5:00 p.m. ET on March 15, 2020. For more information or to submit your proposal, visit https://www.eiseverywhere.com/website/10410/call-for-proposals.
How significant an obstacle to successful scleral lens wear is difficulty with handling of the lenses?
This image shows an example of poor wetting on a large-diameter GP lens. Aside from causing patient discomfort, this caused poor vision and lens deposits. It was remedied with a more lubricous and hydrophilic coating.
We thank Dr. Summers for this image and 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 a detailed explanation of the photo and your full name, degree or title, and city/state/country.
SPECIALTY LENS SPACE
Karen DeLoss, OD
Options and Considerations for Keratoconus
Anyone reading this article should be familiar with keratoconus and aware of options for its management. Scleral lenses tend to get the majority of attention these days as a comfortable option for patients, and I include myself in that category. However, I do commonly use a piggyback lens system for keratoconus patients and find that it can be a quick-and-easy alternative for those patients who are or have become intolerant to corneal GP lenses.
A low-powered soft lens has been suggested for keratoconus patients, as it theoretically shifts the higher elevation of the cornea to a more central location.1,2 However, it has been suggested that a negative-powered soft lens carrier can be clinically effective in a piggyback system. Studies have shown that negative-powered soft lenses can help reduce higher-order aberrations such as spherical aberration and coma, which can lead to better quality of vision. Additionally, these studies showed that there is a reduction in the total effective power of the system and, of course, a thinner central area that can aid in oxygen transmission.3,4 Personally, I use a negative-powered lens because it tends to be what works best for me. Of course, it’s important to educate patients that they may need two cleaning systems or storage cases, but the overall benefits may likely exceed costs and/or the hassle of two systems.
1. O’Donnell C, Maldonado-Codina C. A hyper-Dk contact lens system for keratoconus. Eye Contact Lens. 2004 Jan;30:44-48.
2. Sengor T, Kurna SA, Aki S, Özkurt Y. High Dk piggyback system for contact les-intolerant keratoconus patients. Clin Ophthalmol. 2011;5:331-335.
3. Romero-Jiménez M, Santodomingo-Rubido J, González-Méijome JM, Flores-Rodriguez P, Villa-Collar C. Which soft lens power is better for piggyback in keratoconus? Part II. Cont Lens Anterior Eye. 2015 Feb;38:48-53.
4. Romero-Jiménez M, Santodomingo-Rubido J, Flores-Rodríguez P, González-Méijome JM. Which soft contact lens power is better for piggyback fitting in keratoconus? Cont Lens Anterior Eye. 2013 Feb;36:45-48.
MATERIALS & DESIGNS
David L. Kading, OD
Does One Size Fit All?
When a new lens comes out, we all celebrate. The innovators start fitting, and the laggards look on with hesitation. It’s natural for clinicians to turn to a new option to fix the problems of their patients. But, what should we know about a lens or a product before we start using it?
If a patient has dry eye, does a dry eye drug guarantee success? If a patient has presbyopia, will a multifocal lens always work for them? And, if a patient has progressive myopia, will a soft multifocal be a one-size-fits-all? While the daily disposable multifocal lenses currently on the market are certainly going to benefit millions of patients, are they capable of solving all of our patients’ problems?
Just like a dry eye medication won’t work for everyone, practitioners need to understand all of the aspects of myopia management opportunities and to know when one might work better than another as well as when we need to switch from one option to another. Likewise, as we start fitting more and more of our patients into multifocal daily disposable lenses for myopia management, make sure to stay abreast on all the options for your myopia patients.
Meibomian Gland Dropout, but Distortion, Can Distinguish Dry Eyes From Normal Eyes in Contact Lens Wearers
The purpose of this study was to examine the effectiveness of using meibomian gland (MG) dropout and distortion for dry eye disease (DED) diagnosis in a young population with long-term contact lens (CL) wear.
Seventy-three CL wearers and 68 non-CL-wearers (20 to 28 years old) participated in the study. The diagnosis of DED was based on an ocular surface disease index ≥ 13 and a noninvasive breakup time of < 10 seconds or positive corneal fluorescein staining. The MG dropout and distortion in each subject were quantified with non-invasive meibography. Receiver operating characteristic (ROC) curves were created to evaluate the effectiveness of using MG dropout and distortion to determine the presence of DED in CL wearers and non-CL wearers.
In non-CL wearers, the MG distortion was significantly higher in DED subjects than in normal subjects (3.83 ± 1.81 versus 1.59 ± 1.04). In CL wearers, MG distortion was not significantly different (5.12 ± 4.11 versus 5.51 ± 3.15 in normal and DED subjects, respectively). The area under the ROC curve (AUC) for MG distortion was 0.783 in the non-CL wearers, but 0.507 in CL wearers. In non-CL wearers, MG dropout was significantly higher in DED subjects than in normal subjects (0.22 ± 0.08 versus 0.15 ± 0.06). In CL wearers, MG dropout was also significantly higher in DED subjects than in normal subjects (0.29 ± 0.11 versus 0.22 ± 0.08). The AUC for MG dropout used to classify DED was 0.74 in the non-CL wearers and 0.72 in CL wearers.
The researchers concluded that MG dropout was effective in distinguishing subjects who had DED from normal subjects in both CL wearers and non-CL wearers. MG distortion can only distinguish DED subjects from normal ones in non-CL wearers, but not in CL wearers.
Gu T, Du B, Bi H, et al. Meibomian gland dropout, but distortion, can distinguish dry eyes from normal eyes in contact lens wearers. Curr Eye Res. 2020 Feb 17. [Epub ahead of print]