Giuseppe Ravalico
University of Chieti-Pescara
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Publication
Featured researches published by Giuseppe Ravalico.
Journal of Cataract and Refractive Surgery | 2012
Daniele Tognetto; Paolo Cecchini; Pia Easter Leon; Marta Di Nicola; Giuseppe Ravalico
PURPOSE: To measure the working frequency and the stroke dynamics of the phaco tip of 3 phacoemulsification machines. SETTING: University Eye Clinic of Trieste, Italy. DESIGN: Experimental study. METHODS: A video wet fixture was assembled to measure the working frequency using a micro camera and a micropulsed strobe‐light system. A different video wet fixture was created to measure tip displacement as vectorial movement at different phaco powers using a microscopic video apparatus. RESULTS: The working frequency of the Infiniti Ozil machine was 43.0 kHz in longitudinal mode and 31.6 kHz in torsional mode. The frequency of the Whitestar Signature machine was 29.0 kHz in longitudinal mode and 38.0 kHz with the Ellips FX handpiece. The Stellaris machine had a frequency of 28.8 kHz. The longitudinal stroke of the 3 machines at different phaco powers was statistically significantly different. The Stellaris machine had the highest stroke extent (139 μm). The lateral movement of the Infiniti Ozil and Whitestar Signature machines differed significantly. No movement on the y‐axis was observed for the Infiniti Ozil machine in torsional mode. The elliptical path of the Ellips FX handpiece had different x and y components at different phaco powers. CONCLUSIONS: The 3 phaco machines performed differently in terms of working frequency and stroke dynamics. The knowledge of the peculiar lateral and elliptical path strokes of Infiniti and Whitestar Signature machines may allow the surgeon to fully use these features for lens removal. Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.
Archive | 2012
Daniele Tognetto; Paolo Cecchini; Pia Easter Leon; Giuseppe Ravalico
Archive | 2010
Daniele Tognetto; D. Fanni; Giuseppe Ravalico
Archive | 2010
Daniele Tognetto; Pia Easter Leon; Silvia Rinaldi; Giuseppe Ravalico
Archive | 2010
Daniele Tognetto; D. Fanni; Silvia Rinaldi; Giuseppe Ravalico
Archive | 2009
Daniele Tognetto; D. Fanni; Silvia Rinaldi; Marco Paoloni; Giuseppe Ravalico
Archive | 2009
Daniele Tognetto; A. Franchini; Silvia Rinaldi; D. Fanni; Eirini Skiadaresi; Giuseppe Ravalico
Archive | 2008
Giuseppe Ravalico; D. Fanni; M. T. Di Lauro; Daniele Tognetto
Archive | 2004
G. Sanguinetti; Daniele Tognetto; L. Marcucci; Daniela Minutola; G. Di Stefano; Paolo Sirotti; Giuseppe Ravalico
Archive | 2004
G. Sanguinetti; Daniele Tognetto; Giuseppe Ravalico