Research Papers

Femtosecond laser ablation of the stapes

[+] Author Affiliations
Ryan G. McCaughey

University of California, Irvine, Beckman Laser Institute and Medical Clinic, 1002 Health Sciences Road, Irvine, Calfornia 92612

Hui Sun

University of California, Irvine, Department of Ophthalmology, 118 Med Surge I, Irvine, Calfornia 92697

Vanessa S. Rothholtz

University of California, Irvine, Department of Otolaryngology-Head and Neck Surgery, Irvine Medical Center, Building 56, 101 The City Drive South, Orange, Calfornia 92868

Tibor Juhasz

University of California, Irvine, Department of Ophthalmology, 118 Med Surge I, Irvine, Calfornia 92697

Brian J. F. Wong

University of California, Irving, Beckman Laser Institute and Medical Clinic, 1002 Health Sciences Road, Irvine, Calfornia 92612

J. Biomed. Opt. 14(2), 024040 (April 17, 2009). doi:10.1117/1.3120490
History: Received November 25, 2008; Revised February 09, 2009; Accepted February 16, 2009; Published April 17, 2009
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A femtosecond laser, normally used for LASIK eye surgery, is used to perforate cadaveric human stapes. The thermal side effects of bone ablation are measured with a thermocouple in an inner ear model and are found to be within acceptable limits for inner ear surgery. Stress and acoustic events, recorded with piezoelectric film and a microphone, respectively, are found to be negligible. Optical microscopy, scanning electron microscopy, and optical coherence tomography are used to confirm the precision of the ablation craters and lack of damage to the surrounding tissue. Ablation is compared to that from an Er:YAG laser, the current laser of choice for stapedotomy, and is found to be superior. Ultra-short-pulsed lasers offer a precise and efficient ablation of the stapes, with minimal thermal and negligible mechanical and acoustic damage. They are, therefore, ideal for stapedotomy operations.

Figures in this Article
© 2009 Society of Photo-Optical Instrumentation Engineers

Citation

Ryan G. McCaughey ; Hui Sun ; Vanessa S. Rothholtz ; Tibor Juhasz and Brian J. F. Wong
"Femtosecond laser ablation of the stapes", J. Biomed. Opt. 14(2), 024040 (April 17, 2009). ; http://dx.doi.org/10.1117/1.3120490


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