PMID: 9423900Jan 10, 1998Paper

Factors determining the refractive effects of intrastromal photorefractive keratectomy with the picosecond laser

Journal of Cataract and Refractive Surgery
A VogelR Birngruber

Abstract

To determine the relationship between laser parameters and tissue removal with picosecond laser intrastromal photorefractive keratectomy (ISPRK) and to assess the effect of the parameters on the healing process and the long-term refractive changes. Medical Laser Center Lübeck, Germany. A modified Intelligent Surgical Lasers (ISL) 2001 system with a cone angle of 30 degrees was used for in vitro investigations of the laser effects in water and on the porcine cornea. Photographic methods were used to determine the plasma volume and to investigate the thickness of the intrastromal bubble layer as a function of the laser pulse energy, the number of layers in which the pulses were applied, and the layer separation. The data were used to calculate the amount of tissue removal. Histologic evaluation was done by polarization microscopy after Sirius-red staining. The laser pulses produced a sponge-like appearance of the stroma in a layer extending through about one third the corneal thickness, accompanied by mechanical distortions of the stromal lamellae. Thermal changes were weak. Tissue removal was impaired by the cavitation bubbles from preceding laser pulses. The amount of evaporated tissue depended only weakly on laser pulse energy...Continue Reading

References

Dec 1, 1989·IEEE Transactions on Bio-medical Engineering·S ThomsenW F Cheong
Jan 1, 1988·Journal of Cataract and Refractive Surgery·C R MunnerlynJ Marshall
Nov 1, 1973·Beiträge Zur Pathologie·H PuchtlerL S Valentine
Jan 1, 1994·Lasers in Surgery and Medicine·A VogelR Birngruber
Jun 1, 1996·Journal of Cataract and Refractive Surgery·C GallinaroJ Colin
Dec 1, 1996·American Journal of Ophthalmology·R B VajpayeeH R Taylor
May 1, 1997·Physics in Medicine and Biology·A Vogel

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Citations

Feb 18, 2004·Journal of Cataract and Refractive Surgery·Perry S Binder
Aug 23, 2001·Journal of Biomedical Optics·B M KimL B Da Silva
May 25, 2011·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Christian MeltendorfUlrich von Pape
Dec 14, 2011·Journal of Cataract and Refractive Surgery·Gonzalo MuñozSantiago García-Lázaro
Oct 30, 2010·Journal of Cataract and Refractive Surgery·Gonzalo MuñozAlejandro Cerviño-Expósito
May 13, 2009·Journal of Refractive Surgery·Marcus BlumWalter Sekundo
Oct 20, 2009·Journal of Refractive Surgery·Mike P HolzerGerd U Auffarth
Jan 1, 2008·Journal of Cataract and Refractive Surgery·Perry S BinderRonald Kurtz
Jun 26, 2007·Journal of Cataract and Refractive Surgery·Gonzalo MuñozJaime Javaloy
Dec 2, 2006·Journal of Cataract and Refractive Surgery·Gonzalo MuñozJorge L Alió
Oct 31, 2006·Ophthalmology·Robert Montés-MicóJorge L Alió
Jul 26, 2006·Journal of Cataract and Refractive Surgery·Gonzalo MuñozJorge L Alió
Oct 12, 2002·Zeitschrift für medizinische Physik·Jürgen Eichler, Beop-Min Kim
Mar 5, 2010·Journal of Refractive Surgery·Antonio Rodríguez-GalieteroJosé Angel Cristóbal Bescós
Apr 9, 2005·Physics in Medicine and Biology·Mark A MackanosE D Jansen
Oct 8, 2020·Translational Vision Science & Technology·Sebastian FreidankNorbert Linz
Feb 13, 2003·Chemical Reviews·Alfred Vogel, Vasan Venugopalan

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