Optimizing energy deposition on corneal stroma for an application in laser femtosurgery

D. Giguère; G. Olivié; S. Toetsch; G. Girard; F. Vidal; I. Brunette M.D.; T. Ozaki; J.-C. Kieffer

doi:10.1117/12.629363

13 October 2005 Optimizing energy deposition on corneal stroma for an application in laser femtosurgery

D. Giguère, G. Olivié, S. Toetsch, G. Girard, F. Vidal, I. Brunette M.D., T. Ozaki, J.-C. Kieffer

Proceedings Volume 5969, Photonic Applications in Biosensing and Imaging; 59691Z (2005) https://doi.org/10.1117/12.629363
Event: Photonics North, 2005, Toronto, Canada

Abstract

Ultrashort laser pulses are very promising tools for performing accurate dissection in the eye, especially in the corneal stroma. The development of eye femtosurgery requires basic knowledge about laser-tissue interaction. One of the most significant parameters is the ablation threshold, the minimal laser energy per unit surface required for ablation. We present here measurements of the femtosecond laser ablation threshold as a function of the pulse duration for two cornea layers (epithelium and stroma) using optical damage diagnosis. Experiments have been realized with the INRS Ti:Sapphire laser (60 fs-5000 fs, 800 nm, 10 Hz). Our experimental results are fitted with a model for laser-matter interaction in order to determine some intrinsic physical parameters

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D. Giguère, G. Olivié, S. Toetsch, G. Girard, F. Vidal, I. Brunette M.D., T. Ozaki, and J.-C. Kieffer "Optimizing energy deposition on corneal stroma for an application in laser femtosurgery", Proc. SPIE 5969, Photonic Applications in Biosensing and Imaging, 59691Z (13 October 2005); https://doi.org/10.1117/12.629363

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