Modern specialty contact lenses have really revolutionized vision correction for a tremendous number of patients who have irregular corneas and ocular surface disease. Beyond that, it is interesting to also observe their usage in otherwise “normal” patients who can benefit from these advanced designs. For instance, modern specialty lens designs are now often being considered for the correction of general refractive errors in addition to presbyopia.
We have recently published two in-depth editorial supplements to Contact Lens Spectrum that provide great clinical context for many applications of specialty lens designs. Be sure to check them out!
Lyndon Jones Named as a Fellow of the Canadian Academy of Health Sciences
Lyndon Jones, a professor at the School of Optometry and Vision Science and director of the Centre for Contact Lens Research at the University of Waterloo, was awarded a Fellowship of the Canadian Academy of Health Sciences (CAHS). CAHS Fellows, who serve as unpaid volunteers, are nominated by their institutions and peers and selected in a competitive process based on their internationally recognized leadership, academic performance, scientific creativity, and willingness to serve.
Lyndon is also a Fellow and Diplomate of the American Academy of Optometry (AAO), and he has been awarded a number of national and international awards, including the 2014 Glenn Fry Award from the AAO, 2014 Donald Korb Award from the American Optometric Association, 2013 Max Schapero Award from the Cornea and Contact Lens Section of the AAO, and the 2011 George Giles Memorial Lectureship from the British College of Optometrists.
BostonSight Announces International Partnership
BostonSight and the LV Prasad Eye Institute (LVPEI), a nonprofit, non-government eyecare institution located in Hyderabad, India, announced a global partnership to manufacture and distribute BostonSight scleral contact lenses.
LVPEI will manufacture and distribute BostonSight scleral lenses to eyecare practitioners to prescribe to their patients in India, South East Asia, the Middle East, and Africa. This is the first time that BostonSight Prose (prosthetic replacement of the ocular surface ecosystem) and BostonSight Scleral lenses will be fabricated outside of the United States. Both organizations serve and subsidize under-privileged populations who benefit from access to this unique treatment solution that oftentimes is the only vision impairment alleviation for a variety of ocular surface disorders.
AAOF Announces the 2017 Korb-Exford Dry Eye Career Development Grant Recipient
The American Academy of Optometry Foundation (AAOF) has awarded the inaugural 2017 Korb-Exford Dry Eye Career Development Grant to Srihari Narayanan, OD, PhD, a professor at the University of the Incarnate Word Rosenberg School of Optometry. His proposal, titled “Meibomian Gland Dysfunction management to relieve contact lens discomfort,” was chosen out of 12 very competitive proposals. The proposed study will provide clinically useful data for the management of contact lens discomfort associated with meibomian gland dysfunction. Dr. Narayanan will be honored at the AAOF Celebration Luncheon during the American Academy of Optometry’s Annual Meeting in Chicago.
J&J Vision Debuts Video Series
Johnson & Johnson Vision (J&J Vision) will be debuting a brand-new set of videos, which will give viewers the inside scoop on all the resources available, as well as a new Flip Takes video series.
October 10 – Get a personal tour of the redesigned Vision to Action website, including all its interactive content; the conversation and clips on our Vision to Action Facebook page; and Advocacy Academy, a quick-reference to all things advocacy, from how Congress works to the top issues in vision care.
October 12 – Hear former Congressman Tim Roemer share what to expect in meetings on Capitol Hill in J&J Vision’s first Flip Takes video.
October 17 – In the next Flip Takes video, learn personal tips on how to prepare for a meeting with a lawmaker from government affairs expert, Brian Kelly.
October 19 – A former Senate staffer, Claire Grant, shares her thoughts in our final Flip Takes video on how to make the most of your time when meeting with a staffer versus a member of Congress.
German Ophthalmological Society Honors Uta Gehlsen, PhD
The German Ophthalmological Society (DOG) presented Uta Gehlsen, PhD, from the Ocular Surface Group, Department of Ophthalmology, University of Cologne, with the “Dry Eye and Blepharitis/MGD” Award for her research related to the use of a semifluorinated alkane (SFA F4H5) as a novel carrier for cyclosporine A for the topical treatment of dry eye disease (DED).
The DOG Awards recognize scientific and academic excellence, the advancement of young researchers, interdisciplinary, and internationality in the field of ophthalmology.
Sponsored by Optima Pharmazeutische GmbH, the award was presented during the 115th DOG Congress in Berlin.
Dr. Gehlsen’s research, which was published in Graefe’s Archive for Clinical and Experimental Ophthalmology in January 2017, studied whether a new SFA drug delivery system may improve efficacy or tolerability of cyclosporine. Her research found that a cyclosporine A formulation using F4H5 as its vehicle was equally effective but had a significantly faster therapeutic response in reducing the signs of DED compared to a commercially available treatment in an experimental mouse model.
Buddy Russell, COMT, Atlanta
This image shows the eye of a 62-year-old male who presented with a deep penetrating keratoplasty (PK) with old breaks in the Descemet membrane. He presented wearing spectacles with 20/100 vision and tolerating 8.00D of cylinder. Since his PK in 1990, he stated that he has attempted contact lens wear multiple times without success. The eye was fitted with a scleral lens that provided comfortable wear and 20/30 vision.
We thank Mr. Russell 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.
CARE SOLUTION CORNER
Andrew D. Pucker, OD, PhD
Halloween Costume Safety
Halloween is one of the world’s oldest holidays. In fact, Halloween-like traditions date back to at least the time of ancient Babylonia, more than 2,000 years BC.1 Early versions of Halloween primarily focused on honoring the dead, with acts that included rituals such as lighting torches to guide ghosts home for a meal.1 Most celebrations of the dead happened at the end of the summer and at the end of a month, a symbol of being at the end of a lifecycle; likewise, the American version of Halloween takes place on Oct. 31.1 Halloween in the United States is approximately a $2 billion industry that often includes extravert costumes that are intended either to scare or to emulate an idol. These costumes may, at times, pose unknown dangers to our patients.1
It has been estimated that more than 1,000 emergency room visits per year are associated with decorative contact lenses.2 While the U.S. Food and Drug Administration prohibits the sale of decorative contact lenses without a prescription from a licensed healthcare provider, patients still may find ways to acquire decorative contact lenses without a prescription; we need to work toward preventing this through educating our patients about the potential health risks associated with poorly fitting contact lenses and improper contact lens care.2
The American Optometric Association also warns patients about other dangers such as false eyelashes and costume makeup that can irritate the eyes; masks that can obstruct vision; and sharp accessories such as pitchforks that could cause bodily injuries.2 Overall, we need to urge our patients to use common sense and make safe choices while they are having their Halloween fun.
1. Aveni AF. The Book of the Year : A Brief History of Our Seasonal Holidays. Oxford; New York: Oxford University Press; 2003.
2. Halloween Eye Safety. Optometry. 2007;78(10):560-561.
MATERIALS & DESIGNS
David L. Kading, OD
Do GP Contact Lenses Need To Be Treated?
All of the GP lenses that come into my office have been plasma treated. It is another line that I have drawn in the sand. I know that I’m dealing with a new consultant who doesn’t know my account when he or she asks:
Does it help? Eh, I’m not sure.
Does every GP lens patient need it? Probably not.
So why do it for everyone? The answer is simple math.
I play the odds. If 50% of my patients need plasma treatment, and I don’t do it unless they need it, then I have 50% of my patients uncomfortable and/or depositing. Worse yet, they might not come in and tell me. As such, we do it for everyone. We feel that a treatment on the surface of the lens that gives it as near a glass finish as we can get certainly can’t be bad.
Now, we have another treatment—a 90% water polyethylene glycol (PEG)-based polymer coating—that is starting to make its mark in our GP lens world. The coating is put on at the time of lens manufacturing. Most labs are doing this coating so it is readily available.
Is this going to change our industry? The jury is still out. Some patients certainly benefit from the new treatment. However, because it is not in every lab and has an added cost, we are experiencing some barriers to mass adoption. Until these barriers are minimized, we may struggle to see the growth. Perhaps this is the treatment of the future that will be on all of your lenses and mine. Stay tuned.
Comparison of the Influence of Corneo-Scleral and Scleral Lenses on Ocular Surface and Tear Film Metrics in a Presbyopic Population
The purpose of this study was to assess and compare the effect of the corneo-scleral lenses (C-ScL) and scleral lenses (ScL) on tear film parameters and central corneal thickness (CCT) in healthy presbyopic subjects.
Thirty subjects wore two contact lenses (CLs), randomly assigned, of neutral power, but of different diameters—12.7mm (C-ScL) and 18mm (ScL). The lenses were equal in the others parameters: material (HS100) and center thickness (0.29mm). At baseline, 20 minutes after application, and at eight hours, the tear meniscus area (TMA) and CCT was measured (with optical coherence tomography), as was tear osmolarity.
TMA revealed statistical differences for both lenses at 20 minutes (p < 0.001) and also at eight hours (p = 0.003), being greater for the C-ScL. CCT showed statistical differences for both lenses at 20 minutes (p = 0.002) and also at eight hours (p = 0.001), being lower for the C-ScL. Osmolarity did not reveal statistical differences at 20 minutes (p = 0.29), whereas it was statistically different at eight hours (p = 0.03), being lower for the C-ScL.
The authors concluded that C-ScL led to a lesser reduction in the TMA and a lower induced hypoxic stress compared to the ScL. Osmolarity levels remained within normal values across the day with no clinical difference between lenses. Both designs can represent a good optical platform for correcting presbyopia as well as protecting the ocular surface by vaulting the cornea.
Lafosse E, Romín DM, Esteve-Taboada JJ, Wolffsohn JS, Talens-Estarelles C, García-Lázaro S. Comparison of the influence of corneo-scleral and scleral lenses on ocular surface and tear film metrics in a presbyopic population. Cont Lens Anterior Eye. 2017 Sep 27. [Epub ahead of print]