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Proceedings Paper

Wavelength optimization in femtosecond laser corneal surgery: experimental results
Author(s): C. Crotti; F. Deloison; D. A. Peyrot; M. Savoldelli; J.-M. Legeais; F. Roger; K. Plamann
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Paper Abstract

Femtosecond laser surgery in the volume of corneal tissue is difficult in the case of oedematous or pathological corneas: in those corneas, the propagation of the laser beam is perturbed by the optical scattering. This phenomenon can be greatly reduced by using a better suited laser wavelength. A series of ex vivo surgical experiments has been conducted at wavelengths around 1600 nm. The results have been compared to experiments performed at 800 nm and 1000 nm. We have compared penetration depth and incision quality as a function of wavelength and energy.

Paper Details

Date Published: 17 July 2009
PDF: 8 pages
Proc. SPIE 7373, Therapeutic Laser Applications and Laser-Tissue Interactions IV, 73730J (17 July 2009); doi: 10.1117/12.831893
Show Author Affiliations
C. Crotti, Lab. d'Optique Appliquée, Ecole Nationale Supérieure de Techniques Avancées, CNRS (France)
F. Deloison, Lab. d'Optique Appliquée, Ecole Nationale Supérieure de Techniques Avancées, CNRS (France)
D. A. Peyrot, Lab. d'Optique Appliquée, Ecole Nationale Supérieure de Techniques Avancées, CNRS (France)
M. Savoldelli, Lab. Biotechnologie et Oeil, Hôpital Hôtel Dieu (France)
J.-M. Legeais, Lab. Biotechnologie et Oeil, Hôpital Hôtel Dieu (France)
F. Roger, Unité de Mécanique, Ecole Nationale Supérieure de Techniques Avancées (France)
K. Plamann, Lab. d'Optique Appliquée, Ecole Nationale Supérieure de Techniques Avancées, CNRS (France)


Published in SPIE Proceedings Vol. 7373:
Therapeutic Laser Applications and Laser-Tissue Interactions IV
Ronald Sroka; Lothar D. Lilge, Editor(s)

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