Comparison of the maximum applicable stretch force after femtosecond laser-assisted and manual anterior capsulotomy

• Verfasst von: Auffarth, Gerd U. [VerfasserIn]
• Verfasst von: Reddy, Kasu Prasad [VerfasserIn]
• Verfasst von: Ritter, Roland [VerfasserIn]
• Verfasst von: Holzer, Mike P. [VerfasserIn]
• Verfasst von: Rabsilber, Tanja Marina [VerfasserIn]
• Titel: Comparison of the maximum applicable stretch force after femtosecond laser-assisted and manual anterior capsulotomy
• Verf.angabe: Gerd U. Auffarth, MD, PhD, FEBO, Kasu Prasad Reddy, MD, Roland Ritter, MSc, Mike P. Holzer, MD, FEBO, Tanja M. Rabsilber, MD
• Jahr: 2013
• Umfang: 5 S.
• Fussnoten: Gesehen am 22.10.2020 ; First published: 12 December 2012
• Titel Quelle: Enthalten in: Journal of cataract and refractive surgery
• Ort Quelle: Fairfax, Va. : Soc., 1986
• Jahr Quelle: 2013
• Band/Heft Quelle: 39(2013), 1, Seite 105-109
• ISSN Quelle: 1873-4502
• DOI: doi:10.1016/j.jcrs.2012.08.065
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1736254367

Abstract

Purpose: To objectively measure the strength of the capsulotomy performed with a femtosecond laser-assisted technique or performed manually in a pig-eye laboratory study. - Setting - International Vision Correction Research Centre, Department of Ophthalmology, University of Heidelberg, Heidelberg, Germany. - Design - Experimental study. - Methods - Ten fresh pig eyes were randomly assigned to femtosecond laser-assisted capsulotomy or manual capsulotomy. The capsule was immersed in hyaluronic acid, and retractors were fixed in the capsule opening with a pull-force measuring device. The force necessary to break the capsulotomy was measured in millinewtons (mN); the maximum stretching ratio was also assessed. - Results - The observed mean rupture force (ie, maximum amount of force measured immediately before tissue rupture) was 113 mN ± 12 (SD) in the laser-assisted procedure and 73 ± 22 mN in the manual procedure (P<.05). The stretching ratios were 1.60 ± 0.10 (femtosecond) and 1.35 ± 0.04 (manual) (P<.05). - Conclusion - In this laboratory pig-eye study, femtosecond laser-assisted capsulotomy resulted in a significantly stronger anterior capsule opening than the standard manually performed capsulotomy. - Financial Disclosure - Drs. Auffarth, Reddy, and Holzer have received research and travel grants from Technolas Perfect Vision GmbH. Mr. Ritter is an employee of Technolas Perfect Vision GmbH, Munich, Germany.