GP Lens Institute Newsletter | Apr 29, 2022


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Building a Modern Practice

This month we are highlighting two very informative webinars: 1) Our April webinar for eye care professionals entitled: “Incorporating Technology into Today’s Contact Lens Practice” presented by Dr. Barry Eiden, and 2) Our quarterly student webinar entitled: "Nuts and Bolts of Orthokeratology” presented by Dr. Ariel Cerenzie. Dr. Eiden, of course, is internationally renown for his writing and speaking on specialty contact lens topics including both technology and keratoconus. He owns a prominent specialty lens practice in the Chicago area (North Suburban Vision Consultants), founded the International Keratoconus Academy of Eye Care Practitioners, and has received numerous honors including the recent GPLI-NKCF Thomas J. “Tommy” Pham Keratoconus Practitioner of the Year award. Dr. Cerenzie completed a cornea and contact lens residency program. She then joined a prominent practice in Charlotte, NC where she specializes in fitting patients with corneal disease, high astigmatism, and – of course – young emerging myopes.


Incorporating Technology into Today’s Contact Lens Practice

S. Barry Eiden, OD, FAAO, FSLS

Dr. Eiden discussed the following advanced technologies and how they can both be incorporated and applied in optometric practice:

1.  Placido-based Corneal Topography

2.  Anterior Segment Tomography

     a.  Scheimpflug Tomography

     b.  AS-OCT

3.  Corneo-Scleral Profilometry

     a.  NaFl-based

     b.  Scheimpflug-based

     c.   Impression-based

4.  Specular Microscopy

5.  Aberrometry

     a.  Diagnostic technologies

     b.  Therapeutic approaches

6.  Ocular Surface Diagnostics

     a.  Meibography/Osmolarity/MMP9s/Others

7.  Genetic Testing of Corneal Diseases

8.  Ocular Biometry

Some clinical pearls from this presentation included:

★ Outstanding graphics for all of the technologies presented

★ Technology allows us to individualize/personalize our contact lens management strategies

★ New technologies allow you to customize scleral lens design to match the scleral lens and therefore optimize first-fit success

★ Advanced in aberrometry and contact lens manufacturing allows for the correction of high order aberrations

★ New techniques and instrumentation allow for diagnosis and management of ocular surface and dry eye disease

★ With the advancements made in myopia management, the ability to monitor axial length becomes increasingly important

Watch the Webinar


The Nuts and Bolts of Orthokeratology

Ariel Cerenzie, OD, FAAO, FSLS

Why Orthokeratology?

1. Myopia – notably high myopia – is a growing concern with resulting increased incidence of retinal pathology – including myopic macular degeneration and retinal detachment – as well as glaucoma.

2. You can change people’s lives – not only as a result of significantly reducing their myopia progression and risk of disease – but also by allowing the freedom provided by not having to wear a correction during the day. It has been found in a study of 100 orthokeratology-wearing children, that this modality increased their self-confidence, increased their willingness to try new things, and increased their activity in sports and entertainment.(1)

3. Practice Builder. Myopia management is rapidly becoming standard of care as traditional spectacles and contact lenses do not impact eye growth or amount of myopia progression. In fact the World Council of Optometry passed a resolution in 2021 for myopia management standard of care. Offering orthokeratology as a service in your practice will allow you to offer an exceptional benefit not provided by most other practices.


Dr. Cerenzie then provided a very good overview of the role of base curve, reverse curve, alignment curve, and peripheral curve in an optimum orthokeratology lens-to-cornea fitting relationship. This also included associated corneal topography changes. She also discussed the benefits and challenges of the three methods of fitting orthokeratology including empirical. diagnostic, and software-designed.


She completed the webinar with a very applicable case example. This was initiated by following the recommendations provided by the fabricating laboratory. The associated parameter determination guide as well as consultation services are invaluable when fitting these patients. This patient was a 7 year-old who progressed from a 1 D myope to a 3 D myope in one year. This patient was put on a combination of low dose atropine and orthokeratology. The orthokeratology design was provided after input of refractive parameters and horizontal visible iris diameter into a calculator. The evaluation of the fit as well as results of the 1 day and 1 week follow-up visits – and what to evaluate on these and future follow-up visits – were discussed.


(1)Zhao F, Zhao G, Zhao Z. Investigation of the effect of orthokeratology lenses on quality of life and behaviors of children. Eye Cont Lens 2018;44(5):335-338

Watch the Webinar


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May 17th at 8PM Central

Specialty Contact Lens Coding and Billing Update by Clarke Newman, OD, FAAO, FBCLA, FSLS, FNAP

Sponsored by: Acuity PolymersArt OpticalContamac, and TruForm Optics

Learn More and Register


The 2021 GP Lens Institute Annual Report is Now Available!


We are excited to share our first GPLI Annual Report - Our 2021 Year in Review! This report is full of celebrations, program updates, and thank yous to those who support our mission to provide education and resources for fitting specialty contact lenses.

View the Report


Myopia Management

Kid smiling with contact lens.jpeg

With myopia management rapidly becoming standard of care in today’s practice you can access any of our recent webinars to learn more about orthokeratology and other forms of myopia management including:

Software Applications for Specialty Lens Designs»

Presented in October 2021 by Dr. Jason Jedlicka

Myopia Management Update»

Presented in August 2021 by Dr. Jeffrey Walline

OrthoK: Initial Fitting Challenges and Problem-Solving»

Presented in March 2021 by Dr. Michael Lipson

Orthokeratology Update»

Presented in December 2020 by Dr. Bruce Morgan

Reimbursement Paradigms in Myopia Management»

Presented in September 2020 by Dr. Clarke Newman


You can also access brochures pertaining to orthokeratology (i.e., “See With Your Contact Lenses Even When You Are Not Wearing Them” and “Myopia Management").

Order Printed Materials

Orders shipped to the US only - 200 of each complimentary including shipping



We have almost 3000 GP specialists with their area(s) of specialty listed to assist you when you need to refer a patient or for patients looking for a GP specialist as this resource is also available on our consumer site: If you are interested in signing up to be a referral GP lens practitioner, you can do so here

Specialties Include:

General GP Contact Lenses

Bifocal/Multifocal Contact Lenses

Contact Lenses for Irregular Corneas

Corneal Reshaping / Orthokeratology

Scleral Lens Designs

Submit Your Practice
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The GP Lens Institute family wants to express our sincere condolences to the family of Advisory Board member Dr. Melissa Barnett on the recent passing of her husband, Dr. Todd Erickson. Here is the link to a memorial fund established in Todd’s name:



Do you have an inspiring or success story to share? Email it to [email protected] to have it featured in a future newsletter or social media post!


Did you know the GPLI is headquartered in Lincoln, Nebraska, in the heartland of America? Give to Lincoln Day is a giving event for the nonprofits of Lincoln, where donors can make a larger impact with a matching fund from the Lincoln Community Foundation and generous sponsors. GPLI will get a proportional share of the $500,000 match fund depending on how much is donated through our G2L nonprofit page. AND, the giving can actually begin May 1st, so mark your calendars!

From May 1-26, you can make a bigger impact for our specialty contact lens education programs and services.

Donate through G2L May 1st-26th!

About the GPLI


Edward S. Bennett, OD, MSEd, FAAO, FSLS

Professor Emeritus, University of Missouri St Louis College of Optometry

President and Executive Director, GP Lens Institute (GPLI)

The Gas Permeable Lens Institute is dedicated to providing eyecare professionals with unbiased educational and practice-building resources highlighting GP and custom manufactured soft contact lenses.

Please support the educational opportunities provided by the GP Lens Institute. We will continue to support all ECPs, staff and your patients. Be kind, respectful and find happiness within yourself!!

Thank you again to our newsletter sponsors

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