Anatomical insights from intraoperative OCT in microincisional trabeculectomy.

The trabecular meshwork (TM) offers the maximum resistance to aqueous outflow that regulates the intraocular pressure. Newer ab interno procedures have opened up newer frontiers for understanding the functional relationship between the TM and Schlemm's canal. This case provides newer anatomical insights from findings during intraoperative use of anterior segment optical coherence tomography during ab interno microincisional trabeculectomy. Growing evidence and intraoperative findings during ab interno trabeculectomy suggest that other parts of the TM and its intricate understanding of the physiology of the outflow pathway deserve more study.