Corneal morphology after ex-vivo UV and mid-infrared laser ablation

E. Spyratou; G. E. Voloudakis; K. Moutsouris; I. Asproudis; S. Baltatzis; M. Makropoulou; C. Bacharis; A. A. Serafetinides

doi:10.1117/12.822524

19 December 2008 Corneal morphology after ex-vivo UV and mid-infrared laser ablation

E. Spyratou, G. E. Voloudakis, K. Moutsouris, I. Asproudis, S. Baltatzis, M. Makropoulou, C. Bacharis, A. A. Serafetinides

Author Affiliations +

Proceedings Volume 7027, 15th International School on Quantum Electronics: Laser Physics and Applications; 70271B (2008) https://doi.org/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.

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E. Spyratou, G. E. Voloudakis, K. Moutsouris, I. Asproudis, S. Baltatzis, M. Makropoulou, C. Bacharis, and 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); https://doi.org/10.1117/12.822524

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