Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance

10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits


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Modified Athens protocol in the management and visual rehabilitation of keratoconus: topography-guided partial PRK normalization first, followed by 50um PTK to account for epithelium, followed by variable fluence, topography-customized pattern CXL

Poster Details

First Author: A. Kanellopoulos GREECE

Co Author(s):                        

Abstract Details


To investigate clinical safety and efficacy of topography-guided partial excimer-laser ablation employed to normalize the anterior cornea surface combined with variable-fluence, topography-customized pattern CXL.


the Laservsiion Clinical and Resecrh Institute, Athens, Greece


45 consecutive cases treated with the EX500 Wavelight excimer, part of the Refractive Suite and the KXL II CXL device with the following Steps: 1. Partial topography-guided excimer-laser PRK ablation 2. PTK Excimer-laser ablation to account for epithelial removal, employed AFTER the step #1 (50-μm, 8.00-mm zone). 3. variable higher-fluence and variable shape Customized UV-A delivered in custom-designed CXL pattern Long-term stability assessed with refraction, keratometry, Placido topography, Anterior-Segment-OCT, and Scheimpflug-imaging


All cases had one-year refractive, keratometric, and anterior-surface irregularity indices improvement superior to our previously published standard Athens Protocol results. Average Keratometry improvement: from 51.5 Diopters to 45.4 D, UDVA: from 20/70, to 20/40, CDVA from 20/40 to 20/25, Index of Height Decentration (IHD): from 0,155 to 0,042. Keratoconus stage (1-4): from 3 to 1-2 in average.


Topography-guided partial PRK with excimer laser combined with customized variable fluence and pattern UV-A delivery CXL (vCXL) leads to improved visual rehabilitation outcomes with similar stability established, and potentially a more effective normalization with less cornea tissue removal due to the added refractive effect of vCXL.

Financial Disclosure:

One or more of the authors receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented

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