Transepithelial Phototherapeutic Keratectomy Using a 213-nm Solid-State Laser System Followed by Corneal Collagen Cross-Linking with Riboflavin and UVA Irradiation

Author:

Kymionis George D.1,Grentzelos Michael A.1,Karavitaki Alexandra E.1,Kounis George A.1,Kontadakis Georgios A.1,Yoo Sonia2,Pallikaris Ioannis G.1

Affiliation:

1. Institute of Vision and Optics, Faculty of Medicine, University of Crete, 71003 Heraklion, Crete, Greece

2. Bascom Palmer Eye Institute, University of Miami, Miami, FL 33136, USA

Abstract

Purpose. To present a case of a keratoconic patient who underwent epithelial removal with transepithelial phototherapeutic keratectomy (t-PTK) using a 213-nm solid-state laser system followed by corneal collagen cross-linking (CXL) with riboflavin and ultraviolet-A (UVA) irradiation.Methods. Case report.Results. A twenty-four-year-old male with keratoconus underwent CXL treatment after epithelial removal with t-PTK using a solid-state laser system. No intra- or early postoperative complications were found. One month postoperatively, uncorrected visual acuity (UCVA) improved from 20/63 to 20/32 while best spectacle- corrected visual acuity (BSCVA) improved from 20/40 to 20/25. Corneal topography revealed a significant improvement which remained stable during the six-month followup period.Conclusions. Epithelial removal with t-PTK before CXL could improve patient's visual outcome.

Publisher

Hindawi Limited

Subject

Ophthalmology

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