Posterior Corneal Surface Stability after Femtosecond Laser-Assisted Keratomileusis.
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.
Department of Surgery and Biomedical Science, University of Perugia and S. Maria della Misericordia Hospital, Sant'Andrea delle Fratte, 06156 Perugia, Italy.
Carlo
C
Cagini
Department of Surgery and Biomedical Science, University of Perugia and S. Maria della Misericordia Hospital, Sant'Andrea delle Fratte, 06156 Perugia, Italy.
Marco
M
Messina
Department of Surgery and Biomedical Science, University of Perugia and S. Maria della Misericordia Hospital, Sant'Andrea delle Fratte, 06156 Perugia, Italy ; Centre Ophtalmologique de l'Odéon, 113 Boulevard Saint-Germain, 75006 Paris, France.
Marco
M
Lupidi
Department of Surgery and Biomedical Science, University of Perugia and S. Maria della Misericordia Hospital, Sant'Andrea delle Fratte, 06156 Perugia, Italy.
Francesco
F
Piccinelli
Department of Surgery and Biomedical Science, University of Perugia and S. Maria della Misericordia Hospital, Sant'Andrea delle Fratte, 06156 Perugia, Italy.
Tito
T
Fiore
Department of Economics, Finance and Statistics, University of Perugia, 06156 Perugia, Italy.
Daniela
D
Fruttini
Department of Biotechnology and Medical-Surgical Sciences, "Sapienza" University of Rome, 04100 Latina, Italy.
Leopoldo
L
Spadea