19 December 2008 Corneal morphology after ex-vivo UV and mid-infrared laser ablation
Author Affiliations +
Proceedings Volume 7027, 15th International School on Quantum Electronics: Laser Physics and Applications; 70271B (2008); doi: 10.1117/12.822524
Event: 15th International School on Quantum Electronics: Laser Physics and Applications, 2008, Bourgas, Bulgaria
Abstract
In this work, ablation experiments of ex vivo porcine cornea tissue were conducted with two solid state lasers (an Er:YAG laser and the 4th harmonic of an Nd:YAG laser, both in the ns pulse width range) emitting in mid infrared and ultraviolet part of the spectrum respectively, at moderate laser fluences. The cornea epithelium of each porcine eye was manually removed before the ablation. Histology analysis of the specimens was performed, in order to examine the microscopic appearance of the ablated craters and the existence of any thermal or mechanical damage caused by the midinfrared and the UV laser irradiation. For a detailed and complete examination of the morphology of the laser ablated corneal tissue, the surface roughness was investigated by scanning electron microscopy.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. Spyratou, G. E. Voloudakis, K. Moutsouris, I. Asproudis, S. Baltatzis, M. Makropoulou, C. Bacharis, A. A. Serafetinides, "Corneal morphology after ex-vivo UV and mid-infrared laser ablation", Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 70271B (19 December 2008); doi: 10.1117/12.822524; https://doi.org/10.1117/12.822524
PROCEEDINGS
7 PAGES


SHARE
KEYWORDS
Cornea

Laser ablation

Er:YAG lasers

Nd:YAG lasers

Ultraviolet radiation

Mid-IR

Scanning electron microscopy

RELATED CONTENT

All-femtosecond laser-assisted in situ keratomileusis
Proceedings of SPIE (March 26 2013)
UV solid state laser ablation of intraocular lenses
Proceedings of SPIE (June 24 2013)
Corneal reshaping using a pulsed UV solid-state laser
Proceedings of SPIE (June 24 1993)
Effects of pulsed lasers on hard biological tissue
Proceedings of SPIE (July 07 1993)
Erbium:YAG laser-tissue interactions
Proceedings of SPIE (June 01 1998)

Back to Top