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30th International Congress of German Ophthalmic Surgeons (DOC)

11.05. - 13.05.2017, Nürnberg

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Laboratory evaluation of resistance force for injection of 5 different hydrophobic IOL preloaded systems (P, B)

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  • Qiang Wang - Universitäts-Augenklinik Heidelberg, David J. Apple International Laboratory for Ocular Pathology, Heidelberg
  • Patrick R. Merz - Universitäts-Augenklinik Heidelberg, David J. Apple International Laboratory for Ocular Pathology, Heidelberg
  • Hui Fang - Universitäts-Augenklinik Heidelberg, David J apple International Laboratory for Ocular Pathology, Heidelberg
  • Sonja K. Schickhardt - Universitäts-Augenklinik Heidelberg, David J. Apple International Laboratory for Ocular Pathology, Heidelberg
  • Tanja M. Rabsilber - Universitäts-Augenklinik Heidelberg, David J. Apple International Laboratory for Ocular Pathology, Heidelberg
  • Gerd U. Auffarth - Universitäts-Augenklinik Heidelberg, David J. Apple International Laboratory for Ocular Pathology, Heidelberg

30. Internationaler Kongress der Deutschen Ophthalmochirurgen. Nürnberg, 11.-13.05.2017. Düsseldorf: German Medical Science GMS Publishing House; 2017. DocPO 1.5

doi: 10.3205/17doc116, urn:nbn:de:0183-17doc1169

Published: April 27, 2017

© 2017 Wang et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

Text

Purpose: To determine and compare the resistance force needed for injection of 5 different hydrophobic IOLs into porcine cadaver eyes.

Methods: Ten IOLs of five manufacturers (A: AcrySof IQ AU00T0 IOL, Alcon Inc., USA., B: ARTIS® PL E Cristalens, France., C: Avansee Preset 1P Kowa, Japan., D: Aktis SP (NS-60YG) NIDEK, Japan., E: CT LUCIA® 601PY Carl Zeiss Meditech Germany.) all with a labelled power of +26.0 D were implanted according to the manufacturer’s recommendation into freshly prepared porcine cadaver eyes. The resistance force during the IOL implantation experiments was measured and evaluated using an automated digital force gauge system. To evaluate the correlation between the maximum peak force and the mean total area, a regression curve was analyzed statistically for each group.

Results: For all groups, the maximum resistance forces were 13.6±2.0 (A), 11.0±1.1(B), 3.2±0.1(C), 4.8±0.4(D) and 17.8±1.8(E) Newtons (N) respectively, in porcine eyes, and 13.3±1.3(A), 10.0±1.0(B), 3.1±0.3(C), 4.4±0.4(D), and 18.4±1.8(E) N in Controls. The total AUC were 61.4±10.7 (A), 27.6±4.5(B), 17.8±1.6 (C), 23.4±4.7 (D) and 63.3±15.4 (E) N in porcine eyes and 44.2±6.6 (A), 31.3±4.7(B), 19.5±2.9 (C), 19.8±3.0(D) and 66.5±10.0(E) N in Controls; the correlation coefficients between the resistance forces and the sizes of the total area were 0.4736(A), 0.1527(B), 0.1954(C), 0.2468(D), and 0.8786(E) in porcine eyes.

Conclusions: There were distinct differences among 5 different IOL preloaded systems. System (C) showed the least resistance force.