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Journal of Ophthalmology
Volume 2015, Article ID 184850, 6 pages
Clinical Study

Posterior Corneal Surface Stability after Femtosecond Laser-Assisted Keratomileusis

1Department of Surgery and Biomedical Science, University of Perugia and S. Maria della Misericordia Hospital, Sant’Andrea delle Fratte, 06156 Perugia, Italy
2Centre Ophtalmologique de l’Odéon, 113 Boulevard Saint-Germain, 75006 Paris, France
3Department of Economics, Finance and Statistics, University of Perugia, 06156 Perugia, Italy
4Department of Biotechnology and Medical-Surgical Sciences, “Sapienza” University of Rome, 04100 Latina, Italy

Received 7 March 2015; Accepted 17 August 2015

Academic Editor: Jorge Aliò

Copyright © 2015 Carlo Cagini et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The purpose of this study was to evaluate posterior corneal surface variation after femtosecond laser-assisted keratomileusis in patients with myopia and myopic astigmatism. Patients were evaluated by corneal tomography preoperatively and at 1, 6, and 12 months. We analyzed changes in the posterior corneal curvature, posterior corneal elevation, and anterior chamber depth. Moreover, we explored correlation between corneal ablation depth, residual corneal thickness, percentage of ablated corneal tissue, and preoperative corneal thickness. During follow-up, the posterior corneal surface did not have a significant forward corneal shift: no significant linear relationships emerged between the anterior displacement of the posterior corneal surface and corneal ablation depth, residual corneal thickness, or percentage of ablated corneal tissue.