Unusual intraoperative separation of the trabecular meshwork during gonioscopy-assisted transluminal trabeculotomy

Gonioscopy-assisted transluminal trabeculotomy (GATT) is an angle-based surgical procedure used for the management of glaucoma⁽¹⁾. We report the case of an 82-year-old female with pseudoexfoliative glaucoma that was refractory to medical treatment and who subsequently underwent GATT.

Following completion of a 270° trabeculotomy, a 120° segment of the trabecular meshwork was observed to be detached and protruding into the inferotemporal angle (Figure 1, black arrows). This unusual intraoperative finding was not associated with any subsequent surgical complications. To the best of our knowledge, only one similar case has been reported previously⁽¹⁾, underscoring the exceptional rarity of this event.

REFERENCE

1. Dönmez Gün R, Kugu S, Erkan M, Şimşek S. Partial Schlemm canal, trabecular meshwork, and descemet membrane separation during gonioscopy-assisted transluminal trabeculotomy: a case report. J Glaucoma. 2020;29(1):E1–2.

Submitted for publication: April 27, 2026.
Accepted for publication: May 27, 2026.

Data Availability Statement: The datasets generated and/or analyzed during the current study are included in the manuscript.

Edited by

Editor-in-Chief: Newton Kara-Júnior Associate

Editor: Carlos Augusto Moreira Neto

Funding: This study received no specific financial support.

Disclosure of potential conflicts of interest: The authors declare no potential conflicts of interest.