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Proceedings Paper

Tissue ablation via optical fibre delivery of UV laser radiation
Author(s): Joseph Miller; Xiaobo Yu; Paula K. Yu; Stephen J. Cringle; Dao-Yi Yu
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Paper Abstract

We report the use of an ultraviolet (UV) laser and optical fibre arrangement capable of precise and controllable tissue ablation. The 5th (213nm) and 4th (266nm) harmonics of a Nd:YAG laser were launched into optical fibres using a hollow glass taper to concentrate the beam. Standard and modified silica/silica optical fibres were used, all commercially available. The available energy and fluence, as a function of optical fibre length, were evaluated and maximised. Single 5ns pulses were used to ablate both fresh porcine retina and in vivo rat trabecular meshwork. Fluences of 0.4 to 4.0 J/cm2 of 266nm and 0.2 to 1.0 J/cm2 of 213nm were used respectively. Thus demonstrating the potential use of this system for intraocular surgical applications.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70043D (16 May 2008); doi: 10.1117/12.786035
Show Author Affiliations
Joseph Miller, The Univ. of Western Australia (Australia)
Xiaobo Yu, The Univ. of Western Australia (Australia)
Fudan Univ. (China)
Paula K. Yu, The Univ. of Western Australia (Australia)
Stephen J. Cringle, The Univ. of Western Australia (Australia)
Dao-Yi Yu, The Univ. of Western Australia (Australia)

Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors
David Sampson; Stephen Collins; Kyunghwan Oh; Ryozo Yamauchi, Editor(s)

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