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Corneo-scleral contact lens in a piggyback system for keratoconus A case report.pdf
G Model CLAE 934 No. of Pages 5
Contact Lens and Anterior Eye xxx (2016) xxx–xxx
Contents lists available at ScienceDirect
Contact Lens and Anterior Eye
journal homepage: /locate/clae
Case report
Corneo-scleral contact lens in a piggyback system for keratoconus: A case report
Esteban Porcara,*, Juan Carlos Montalta, Enrique Espa?a-Gregorib, Cristina Peris-Martínezc
a Department of Optics, Optometry and Vision Sciences, Physics College, University of Valencia, Burjassot, Valencia 46100, Spain b Department of Surgery, Ophthalmology unit, La Fe University and Polytechnic Hospital, Faculty of Medicine and Odontology, University of Valencia, Hospital la Fe, Valencia 46026, Spain c FISABIO Oftalmología Médica (FOM), Cornea Unit and Anterior Segment Diseases, Catholic University of Valencia, Valencia 46015, Spain
ARTICLE INFO
Article history: Received 4 July 2016 Received in revised form 12 December 2016 Accepted 21 December 2016
Keywords: Corneal ectasia Keratoconus Corneo-scleral contact lens
ABSTRACT
Purpose: We describe a case of ?tting a corneo-scleral contact lens with a multi-aspheric geometry design (MAGD CScL) on top of a daily silicone hydrogel lens (piggyback system) for keratoconus management. Methods: A 48-year-old man using soft toric contact lenses required an improvement in the unsatisfactory quality of his vision. He presented with bilateral asymmetric keratoconus with high myopia in the right eye (RE) and severe myopia in the left eye (LE). In addition, he had low vision in his LE because of a maculopathy. He was ?tted with MAGD CScL to correct his irregular astigmatism. A diagnostic trial set was used in the ?tting process and the patient was assessed according to a standardised ?tting methodology. Visual acuity, corneal topography and contrast sensitivity were evaluated. The follow-up period was 1 year. Results: The best spectacle-corrected visual acuity was 0.5 logMAR for the RE with à10 D/-5 D ? 60 and 2 logMAR for the LE with à20 D/-3 D ? 105. Afte
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