Ablation rate of the human cornea and PMMA with fifth harmonic generation of Nd:YAG laser (213 nm)

Jin-Hui Shen; Fabrice Manns; Karen Margaret Joos M.D.; William E. Lee; David B. Denham; Per G. Soederberg; Jean-Marie A. Parel

doi:10.1117/12.199263

12 January 1995 Ablation rate of the human cornea and PMMA with fifth harmonic generation of Nd:YAG laser (213 nm)

Jin-Hui Shen, Fabrice Manns, Karen Margaret Joos M.D., William E. Lee, David B. Denham, Per G. Soederberg, Jean-Marie A. Parel

Author Affiliations +

Proceedings Volume 2330, Lasers in Ophthalmology II; (1995) https://doi.org/10.1117/12.199263
Event: International Symposium on Biomedical Optics Europe '94, 1994, Lille, France

Abstract

It was found that ablation at radiant exposures below 1 kJ/m² both for polymethylmetacrylate (PMMA) and for the human cornea is minimal. Above 1 kJ/m² the ablation rate increased approximately linearly with radiant exposure, the increase being twice as quick for cornea [0.26 (micrometers /pulse)/(kJ/m²)] as for PMMA [0.13 (micrometers /pulse)/(kJ/m²)]. Laminae of PMMA and human cornea of known thickness were ablated with nano second pulses at 213 nm. It is anticipated that the current data will serve as a basis for design of ablation procedures in the cornea.

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Jin-Hui Shen, Fabrice Manns, Karen Margaret Joos M.D., William E. Lee, David B. Denham, Per G. Soederberg, and Jean-Marie A. Parel "Ablation rate of the human cornea and PMMA with fifth harmonic generation of Nd:YAG laser (213 nm)", Proc. SPIE 2330, Lasers in Ophthalmology II, (12 January 1995); https://doi.org/10.1117/12.199263

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