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Success of Rigid Gas Permeable Contact Lens Fitting

Ortiz-Toquero, Sara M.Sc.; Martin, Mario O.D.; Rodriguez, Guadalupe M.Sc.; de Juan, Victoria Ph.D.; Martin, Raul Ph.D.

Eye & Contact Lens: Science & Clinical Practice: May 2017 - Volume 43 - Issue 3 - p 168–173
doi: 10.1097/ICL.0000000000000254
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Objectives: To assess the percentage of successful rigid gas permeable (GP) contact lenses (CLs) fit for both refractive and therapeutic reasons.

Methods: New CLs (soft or GP) fittings were retrospectively analyzed and divided into refractive and therapeutic prescriptions. A standardized fitting protocol that included complete CLs information after a first eye examination, a diagnostic fitting visit, a dispensing visit, and a prescribing visit was used in all fittings. A GP fitting was defined as successful if full-time wear and optimal ocular surface physiology were both achieved at the review assessment 2 to 3 weeks after lens dispensing.

Results: Of 232 new CLs fittings analyzed, 166 were refractive fittings (71.6%) and 66 were therapeutic (28.4%). Of the refractive fittings, 88 subjects (53%) were initially fitted with GP CLs and 61 (69.3%) of these met the criteria for successful GP fitting. Within this group, a different percentage of successful fits were found for neophyte (72%), previous soft lens wearers (62%), and previous GP wearers (92.3%). Of the therapeutic fittings, 61 subjects (92.4%) were initially fitted with GP CLs and 59 (96.7%) of these met the criteria for successful GP fitting.

Conclusions: Following a standardized CLs fitting protocol, a relatively high percentage of successful GP fits was achieved for refractive (7/10 subjects) and therapeutic (9/10 subjects) prescriptions. These results will improve the information available to patients and aid in their CL choices by providing them with a realistic attitude. It will also help eye care practitioners in their clinical activities by providing evidence-based information.

Departamento de Física Teórica (S.O.-T., G.R., V.d.J., R.M.), Atómica y Óptica, Universidad de Valladolid, Valladolid, España; Universidad de Valladolid (S.O.-T., G.R., V.d.J., R.M.), Instituto Universitario de Oftalmobiología Aplicada (IOBA), Valladolid, España; and Optometry Research Group (S.O.-T., M.M., G.R., V.d.J., R.M.), IOBA Eye Institute, School of Optometry, University of Valladolid, Valladolid, Spain.

Address correspondence to Raul Martin, Ph.D., IOBA Eye Institute, University of Valladolid, Paseo de Belen, 17, 47011 Valladolid, Spain; e-mail: raul@ioba.med.uva.es

S. Ortiz-Toquero was supported by Junta Castilla y León (Consejeria de Educación), Program: Estrategia Regional de Investigación Científica, Desarrollo Tecnológico e Innovación 2007 to 2013, co-funding by Social European Fund. The remaining authors have no funding or conflicts of interest to disclose.

Accepted January 04, 2016

© 2017 Contact Lens Association of Ophthalmologists, Inc.