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Intraoperative optical coherence tomography and ab interno trabecular meshwork surgery with the Trabectome

Authors Junker B, Jordan JF, Framme C, Pielen A

Received 8 July 2017

Accepted for publication 22 August 2017

Published 28 September 2017 Volume 2017:11 Pages 1755—1760

DOI https://doi.org/10.2147/OPTH.S145873

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Amy Norman

Peer reviewer comments 3

Editor who approved publication: Dr Scott Fraser

Bernd Junker,1 Jens F Jordan,2 Carsten Framme,1 Amelie Pielen1

1University Eye Hospital, Medical School Hannover, Hannover, 2Eye Center, Medical Center, University of Freiburg, Freiburg, Germany

Importance: This study is the first description of the use of the intraoperative optical coherence tomography (iOCT) for trabecular meshwork surgery with the Trabectome in a regular clinical setting.
Background: The aim of this study is to evaluate intraoperatively the immediate success of ab interno trabeculotomy with the Trabectome defined as a removal of the trabecular meshwork.
Design: This is a retrospective clinical study performed in the University Eye Hospital, Medical School Hannover.
Participants: A total of nine consecutive Caucasian patients suffering from primary open angle glaucoma, pigment dispersion glaucoma, or pseudoexfoliation glaucoma took part in the study.
Methods: All patients underwent ab interno trabeculotomy surgery with the Trabectome using a commercially available iOCT to visualize the anterior chamber angle (ACA) before and after the procedure. The visualization was done using a modified Swan-Jacobs lens (all nine patients) or without lens (view from above, five patients).
Main outcome measures: The main outcome of this study is the success of visualization of the ACA on iOCT, especially the postprocedural visualization of the wound gap after removal of the trabecular meshwork.
Results: Using the view from above, the ACA could be visualized before and after the procedure in only two of the five cases. Using the modified Swan-Jacobs lens, the ACA could be visualized before the procedure and the trabecular meshwork opening after the procedure in all nine patients.
Conclusion: The iOCT can be used to objectify the immediate success of the surgical procedure, ie, the removal of the trabecular meshwork, of ab interno trabeculotomy with the Trabectome. The procedure itself cannot be captured sufficiently via iOCT.

Keywords: glaucoma, imaging, iOCT, trabecular meshwork surgery

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