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Verfasst von:Hengerer, Fritz [VerfasserIn]   i
 Auffarth, Gerd U. [VerfasserIn]   i
 Conrad-Hengerer, Ina [VerfasserIn]   i
Titel:Femtosecond laser-assisted capsulotomy
Titelzusatz:histological comparison of four different laser platforms
Verf.angabe:Fritz H. Hengerer, Michel Mittelbronn, Martin Leo Hansmann, Gerd U. Auffarth, Ina Conrad-Hengerer
Jahr:2017
Umfang:6 S.
Fussnoten:Gesehen am 04.05.2018
Titel Quelle:Enthalten in: Journal of refractive surgery
Ort Quelle:Thorofare, NJ : SLACK Inc., 1996
Jahr Quelle:2017
Band/Heft Quelle:33(2017), 10, Seite 670-675
ISSN Quelle:1938-2391
Abstract:Purpose: To compare histological analyses of capsulotomies from different laser systems with regard to tissue alteration, laser spot formation, and energy settings. Methods: Four femtosecond laser platforms approved for cataract surgery were evaluated: LenSx (Alcon Laboratories, Inc., Fort Worth, TX), Catalys (Abbott Medical Optics, Santa Ana, CA), Victus (Tecnolas/Bausch & Lomb, Munich, Germany), and LensAR (Topcon, Gamagori, Japan). Ten human anterior lens capsulotomy disks from each laser system were analyzed: five by means of light microscopy and five by transmission electron microscopy (TEM). TEM was used especially to examine the cellular and stromal changes at the cutting edges. The cellular demarcation line was measured at 15 points along the rim and statistically compared with the findings from all laser platforms. Three capsules of each laser platform were prepared for TEM to evaluate the cellular and tissue edges of the laser cuttings. Results: All capsulotomies revealed a circular demarcation zone of different sizes along the cutting edges. Light microscopy showed a radial tissue damage of 36.0 ± 12.3 μm after Victus laser capsulotomy, 8.9 ± 2.9 μm after Catalys laser capsulotomy, 25.2 ± 5.6 μm after LensAR laser capsulotomy, and 39.8 ± 5.1 μm after LenSx laser capsulotomy. Differences between the damaged tissue zones correlated with the laser systems and their energy settings. Conclusions: The use of less energy and larger spot separation led to smaller collateral damaged tissue areas along the cutting edges. The aberrant laser spots along the cutting edge may result in weakening of the remaining tissue, thereby enhancing the risk for capsular ruptures during surgery.
DOI:doi:10.3928/1081597X-20170718-01
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kostenfrei registrierungspflichtig: Volltext ; Verlag: http://dx.doi.org/10.3928/1081597X-20170718-01
 kostenfrei registrierungspflichtig: Volltext: https://www.healio.com/ophthalmology/journals/jrs/2017-10-33-10/%7B014237fb-b1c7-4ceb-8714-076c18f6397f%7D/femtosecond-l ...
 DOI: https://doi.org/10.3928/1081597X-20170718-01
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1572648112
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