COMPARISON OF PLACIDO DISC AND SCHEIMPFLUG IMAGE-DERIVED TOPOGRAPHY-GUIDED EXCIMER LASER SURFACE NORMALIZATION COMBINED WITH HIGHER FLUENCE CXL: THE ATHENS PROTOCOL, IN PROGRESSIVE KERATOCONUS

Anastasios John Kanellopoulos,1,2 George Asimellis11Laservision.gr Eye Institute, Athens, Greece; 2New York University School of Medicine, Department of Opthalmology, NY, NY, USABackground: The purpose of this study was to compare the safety and efficacy of two alternative corneal topography data sources used in topography-guided excimer laser

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