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Proceedings Paper

Intraocular enhancement of pressure transients induced by argon-fluoride laser pulses during photorefractive keratectomy
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Paper Abstract

Pulsed laser ablation of corneal tissue at the typical operative fluences of Argon-Fluoride photorefractive keratectomy produces stress waves propagating into the eye. Temporal and spatial evolution of these pressure pulses during propagation were measured directly in porcine eyes with a needle hydrophone. Beside diffraction effects that give rise to a bipolar shape of the pressure pulse with a positive compression peak followed by a marked rarefaction phase, we found a significant focusing of the stress wavefront caused by the spherical shape of the cornea, that increased for larger irradiation spot diameters.

Paper Details

Date Published: 22 December 1997
PDF: 4 pages
Proc. SPIE 3192, Medical Applications of Lasers in Dermatology, Ophthalmology, Dentistry, and Endoscopy, (22 December 1997); doi: 10.1117/12.297838
Show Author Affiliations
Roberto Pini, Istituto di Elettronica Quantistica/CNR (Italy)
Francesca Rossi, Istituto di Elettronica Quantistica/CNR (Italy)
Salvatore Siano, Istituto di Elettronica Quantistica/CNR (Italy)
Renzo Salimbeni, Istituto di Elettronica Quantistica/CNR (Italy)
Pier Giorgio Gobbi, Istituto Scientifico San Raffaele (Italy)


Published in SPIE Proceedings Vol. 3192:
Medical Applications of Lasers in Dermatology, Ophthalmology, Dentistry, and Endoscopy
Gregory B. Altshuler; Reginald Birngruber; Marco Dal Fante; Raimund Hibst; Herbert Hoenigsmann; Neville Krasner; Frederic Laffitte, Editor(s)

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