Laser-fiber system for ablation of intraocular tissue using the fourth harmonic of a pulsed Nd:YAG laser |
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Authors: | Miller Joseph Yu Paula K Cringle Stephen J Yu Dao-Yi |
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Affiliation: | The University of Western Australia, Nedlands, Perth, Australia. |
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Abstract: | We report on a method for delivering high fluence pulsed 266 nm laser radiation to the target tissue via an optical fiber. The fourth harmonic of a Nd:YAG laser was concentrated using a hollow glass taper and launched into an optical fiber. Fluences of up to 2 J/cm(2) were routinely output at the tapered optical fiber tip. The maximum fluence generated before failure of the optical fiber was between 3.5 and 8 J/cm(2). Ablation of ocular tissue was demonstrated using fluences of 1.0 and 0.4 J/cm(2). The delivery system has the potential for use in intraocular surgical procedures. |
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