GP Lens Institute Newsletter | October 15, 2021


Building Your Practice with GP and Custom Soft Contact Lenses

In this issue, the ease of GP fitting is emphasized, ranging from empirical fitting resources to aspheric multifocal fitting pearls. The initial focus, however, pertains to an outstanding webinar – presented October 5th – on why you should an optometric residency program. Drs. Sydni Davis, Tiffany Andrzejewski, Carl Kramer, and Madison Moss provided an excellent overview of the benefits of their respective cornea and contact lens residency programs and communicated how it opened doors for them to find the practice modality they coveted. 


Why You Should Consider an Optometric Residency

Sydni Davis OD; Tiffany Andrzejewski OD, FAAO; Carl Kramer OD, FAAO; Madison Moss OD


The faculty initially introduced themselves and their background, indicated why they chose a particular residency, presented an interested case from their residency program, and then indicated how their residency led them to their current modality. Dr. Davis performed her residency at the Arizona College of Optometry where she immediately joined the faculty upon graduation. Dr. Andrzejewski likewise joined the Indiana University School of Optometry faculty upon completion of her residency program and several years later joined the prestigious MD-OD Chicago Cornea Consultants practice. Dr. Kramer – after completing the residency program at University of Missouri-St. Louis (UMSL) College of Optometry – was in private practice for over four years in the Kansas City area prior to recently joining the faculty at UMSL. Dr. Moss completed UMSL’s residency program and is now building a contact lens specialty practice at Carrboro Family Vision in North Carolina.

The faculty then addressed such questions as:

  1. What are the benefits (in general) of completing a residency program?
  2. What did you enjoy most about completing a Cornea and Contact Lens residency program?
  3. What advice do you have for an aspiring Cornea and Contact Lens Resident? 
  4. How do you select the right residency?
  5. Knowing the initial stipend is much less than going directly into a practice, how is this ultimately not an issue? 
  6. What is the general application and interview process/timeline for residencies?
  7. What do you do during your residency - or wish you would have done - to help you advance in your career (i.e., the importance of going to meetings - pursuing Academy Fellowship, visiting practices, contacting distinguished colleagues for advice, using your residency director and faculty to help you, etc.)
  8. Outside of the clinic, what are some other experiences that residents typically have throughout the year of residency? 
Watch the Webinar



October 19: Jason Jedlicka OD, FAAO, FSLS:

Software Applications for Specialty Lens Designs

November 16: Greg DeNaeyer OD, FAAO, FSLS: Beyond the Basics: Advanced scleral lens design

December 21: Maria K. Walker OD, MS, FAAO, FSLS: GP Material Update

Learn More and Register
Click _n_ Fit _2.png


On www.gpli.info “Education” “By Lens Type” “Spherical GP Lenses” you will find several resources that will help with empirical fitting and evaluation of GP lenses. The GPLI Toric and Spherical Lens Calculator provides a reasonably comprehensive empirical lens design after you have inputted refractive information. Click ‘n’ Fit is a virtual fitting system that allows you to select a lens from a diagnostic set and evaluate the fitting relationship. You can also make changes in base curve radius and diameter and assess the change in lens position and fluorescein pattern. It also provides a virtual one-week follow-up visit.

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


The GPLI maintains a database of U.S. eye care professionals who prescribe and fit GP lenses. This list is used daily by consumers visiting our patient education website.

Specialties Include:

General GP Contact Lenses

Bifocal/Multifocal Contact Lenses

Contact Lenses for Irregular Corneas

Corneal Reshaping / Orthokeratology

Scleral Lens Designs

Apply to have your practice added to our locator database.

Submit Your Practice


Aspheric GP Multifocal Fitting Pearls

Dr. Ed Bennett

Many of the pearls when fitting aspheric multifocals are, in fact, similar to soft lens multifocal fitting. These include:

  1. Empirical Fitting: Providing the laboratory with the recommended information (typically refraction, K’s/sim K’s, add power and sometimes pupil size) often results in an excellent experience visually for presbyopes experiencing GP multifocal wear for the first time. This, in turn, often lessens their perception of awareness due to the “Wow” factor.
  2. Fit Assessment: The lens should center well or slightly superior-central. As the lenses in common use today are predominantly front surface aspheric they should have a back surface that aligns well with the cornea resulting in an alignment fluorescein pattern.
  3. Take a Walk! After dispensing - while they are adapting - have them walk around the office and “take their lenses for a ride” looking at a magazine, off at a distance, perhaps at a computer, and then come back and report how they feel about their vision.
  4. We Have Two Eyes Not One. For assessing the over-refraction, have them keep both eyes open and use flip lenses (often 0.25D) in front of each eye individually. It’s remarkable what a difference 0.25D makes in the subjective perception of vision.
  5. Let them know that their vision will improve as they adapt to the lenses; GP aspherics are much easier to adapt to visually than soft multifocals due to both the optical quality and the center-distance optics.
  6. But what if there is a problem? That’s no problem. Your laboratory consultant is worth their weight in gold for helping through the process, beginning with lens selection, and finishing with problem-solving. The ability today to use a cell phone adaptor for the slit lamp to take photos and video is very helpful to the consultant who is THE expert with that specific lens design. Common problems include an inferior decentering lens (often solved with a steeper base curve design) or the need for more add power (often solved by reducing the effective distance zone in either the non-dominant eye or both eyes). 
  7. Communication = Success! Find out what their primary visual goals are and attempt to meet their primary goals. Never guarantee that they will not require over-glasses. They are infrequently needed with GP wearers but occasionally someone may desire a small amount of minus power to wear for night driving or a small amount of plus power to read very small print such as with medication labels. 
  8. But what about monovision? Certainly monovision, like hybrid multifocals and scleral multifocals are tools that should be in the presbyopic fitting toolbox. That said, today’s designs have become so sophisticated and result in better vision than yesterday’s designs such that the benefit of good binocular correction at all distances make multifocals an option to be positioned first when providing the options to the patient. And if vision is an important, aspheric (and segmented, translating) multifocals need to be emphasized.

The Bottom Line

Every presbyope deserves to be asked if they would be interested in contact lenses. Those individuals who are existing wearers will be very motivated to stay in contact lenses. But you will be surprised to find that many presbyopes who are not wearing lenses will respond positively and not only will you change their life but they might represent your most prolific referral source. It’s quite evident that the presbyope represents your greatest opportunity and you can build a practice simply on the contact lens fitting of these patients.

Join us at the Global Specialty Lens Symposium


The CLMA and the GP Lens Institute are GOLD Level Sponsors to the GSLS 2022. One Contact Lens Educator - faculty member - from each optometric school and college of Optometry in North America will receive a complimentary registration to attend.


About 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!!




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