Measurement of tear resistance after manual capsulorhexis and femtosecond laser–assisted capsulotomy of crystalline lenses

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Mandy Patzlaff-Günther
  • Michael Fromm
  • Thomas Kern
  • Martin Bartram
  • Anna Schwäblein
  • Dag Heinemann
  • Sonja Johannsmeier
  • Carsten Framme
  • Tammo Ripken

Externe Organisationen

  • Laser Zentrum Hannover e.V. (LZH)
  • Rowiak GmbH
  • Medizinische Hochschule Hannover (MHH)
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Details

OriginalspracheEnglisch
Seiten (von - bis)1891-1897
Seitenumfang7
FachzeitschriftLasers in medical science
Jahrgang37
Ausgabenummer3
Frühes Online-Datum29 Okt. 2021
PublikationsstatusVeröffentlicht - Apr. 2022

Abstract

Background: In this study, the tear resistance of porcine lens capsules after continuous curvilinear capsulorhexis (CCC) and femtosecond (fs)-laser-assisted capsulotomy for cataract surgery (FLC) with different laser parameters is measured with a custom-made testing setup. Methods: Forty-five fresh porcine lenses were randomly chosen for CCC (n = 15) or FLC 1 (n = 15) and FLC 2 (n = 15). The FLC 1-group was treated with smaller spot distances than the FLC 2-group. The force necessary to break the opening of the anterior capsule and the maximum displacement were measured. Results: The mean tear resistance of the CCC-group (150 ± 70 mN) was higher than that of the FLC 1-group (60 ± 20 mN) and the FLC 2-group (30 ± 20 mN). Conclusion: It could be shown that CCC leads to a significantly higher tear resistance of the opening than FLC in porcine lenses. The femtosecond laser group demonstrated that smaller spot distances lead to a higher tear resistance.

ASJC Scopus Sachgebiete

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Measurement of tear resistance after manual capsulorhexis and femtosecond laser–assisted capsulotomy of crystalline lenses. / Patzlaff-Günther, Mandy; Fromm, Michael; Kern, Thomas et al.
in: Lasers in medical science, Jahrgang 37, Nr. 3, 04.2022, S. 1891-1897.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Patzlaff-Günther, M, Fromm, M, Kern, T, Bartram, M, Schwäblein, A, Heinemann, D, Johannsmeier, S, Framme, C & Ripken, T 2022, 'Measurement of tear resistance after manual capsulorhexis and femtosecond laser–assisted capsulotomy of crystalline lenses', Lasers in medical science, Jg. 37, Nr. 3, S. 1891-1897. https://doi.org/10.1007/s10103-021-03448-1
Patzlaff-Günther, M., Fromm, M., Kern, T., Bartram, M., Schwäblein, A., Heinemann, D., Johannsmeier, S., Framme, C., & Ripken, T. (2022). Measurement of tear resistance after manual capsulorhexis and femtosecond laser–assisted capsulotomy of crystalline lenses. Lasers in medical science, 37(3), 1891-1897. https://doi.org/10.1007/s10103-021-03448-1
Patzlaff-Günther M, Fromm M, Kern T, Bartram M, Schwäblein A, Heinemann D et al. Measurement of tear resistance after manual capsulorhexis and femtosecond laser–assisted capsulotomy of crystalline lenses. Lasers in medical science. 2022 Apr;37(3):1891-1897. Epub 2021 Okt 29. doi: 10.1007/s10103-021-03448-1
Patzlaff-Günther, Mandy ; Fromm, Michael ; Kern, Thomas et al. / Measurement of tear resistance after manual capsulorhexis and femtosecond laser–assisted capsulotomy of crystalline lenses. in: Lasers in medical science. 2022 ; Jahrgang 37, Nr. 3. S. 1891-1897.
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title = "Measurement of tear resistance after manual capsulorhexis and femtosecond laser–assisted capsulotomy of crystalline lenses",
abstract = "Background: In this study, the tear resistance of porcine lens capsules after continuous curvilinear capsulorhexis (CCC) and femtosecond (fs)-laser-assisted capsulotomy for cataract surgery (FLC) with different laser parameters is measured with a custom-made testing setup. Methods: Forty-five fresh porcine lenses were randomly chosen for CCC (n = 15) or FLC 1 (n = 15) and FLC 2 (n = 15). The FLC 1-group was treated with smaller spot distances than the FLC 2-group. The force necessary to break the opening of the anterior capsule and the maximum displacement were measured. Results: The mean tear resistance of the CCC-group (150 ± 70 mN) was higher than that of the FLC 1-group (60 ± 20 mN) and the FLC 2-group (30 ± 20 mN). Conclusion: It could be shown that CCC leads to a significantly higher tear resistance of the opening than FLC in porcine lenses. The femtosecond laser group demonstrated that smaller spot distances lead to a higher tear resistance.",
keywords = "Cataract surgery, Continuous curvilinear capsulorhexis, Femtosecond (fs)-laser-assisted capsulotomy, Lens refilling, Phacoemulsification, Tear resistance",
author = "Mandy Patzlaff-G{\"u}nther and Michael Fromm and Thomas Kern and Martin Bartram and Anna Schw{\"a}blein and Dag Heinemann and Sonja Johannsmeier and Carsten Framme and Tammo Ripken",
note = "Funding Information: We thank the Deutsche Gesellschaft f{\"u}r Gewebetransplantation gGmbH (DGFG) for the support with human donor lenses.",
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T1 - Measurement of tear resistance after manual capsulorhexis and femtosecond laser–assisted capsulotomy of crystalline lenses

AU - Patzlaff-Günther, Mandy

AU - Fromm, Michael

AU - Kern, Thomas

AU - Bartram, Martin

AU - Schwäblein, Anna

AU - Heinemann, Dag

AU - Johannsmeier, Sonja

AU - Framme, Carsten

AU - Ripken, Tammo

N1 - Funding Information: We thank the Deutsche Gesellschaft für Gewebetransplantation gGmbH (DGFG) for the support with human donor lenses.

PY - 2022/4

Y1 - 2022/4

N2 - Background: In this study, the tear resistance of porcine lens capsules after continuous curvilinear capsulorhexis (CCC) and femtosecond (fs)-laser-assisted capsulotomy for cataract surgery (FLC) with different laser parameters is measured with a custom-made testing setup. Methods: Forty-five fresh porcine lenses were randomly chosen for CCC (n = 15) or FLC 1 (n = 15) and FLC 2 (n = 15). The FLC 1-group was treated with smaller spot distances than the FLC 2-group. The force necessary to break the opening of the anterior capsule and the maximum displacement were measured. Results: The mean tear resistance of the CCC-group (150 ± 70 mN) was higher than that of the FLC 1-group (60 ± 20 mN) and the FLC 2-group (30 ± 20 mN). Conclusion: It could be shown that CCC leads to a significantly higher tear resistance of the opening than FLC in porcine lenses. The femtosecond laser group demonstrated that smaller spot distances lead to a higher tear resistance.

AB - Background: In this study, the tear resistance of porcine lens capsules after continuous curvilinear capsulorhexis (CCC) and femtosecond (fs)-laser-assisted capsulotomy for cataract surgery (FLC) with different laser parameters is measured with a custom-made testing setup. Methods: Forty-five fresh porcine lenses were randomly chosen for CCC (n = 15) or FLC 1 (n = 15) and FLC 2 (n = 15). The FLC 1-group was treated with smaller spot distances than the FLC 2-group. The force necessary to break the opening of the anterior capsule and the maximum displacement were measured. Results: The mean tear resistance of the CCC-group (150 ± 70 mN) was higher than that of the FLC 1-group (60 ± 20 mN) and the FLC 2-group (30 ± 20 mN). Conclusion: It could be shown that CCC leads to a significantly higher tear resistance of the opening than FLC in porcine lenses. The femtosecond laser group demonstrated that smaller spot distances lead to a higher tear resistance.

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KW - Continuous curvilinear capsulorhexis

KW - Femtosecond (fs)-laser-assisted capsulotomy

KW - Lens refilling

KW - Phacoemulsification

KW - Tear resistance

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