Observation of Gonio Structures during Microhook Ab Interno Trabeculotomy Using a Novel Digital Microscope with Integrated Intraoperative Optical Coherence Tomography

Figure 3

Representative microscope-integrated optical coherence tomography (OCT) images of trabeculotomy site. Based on the flap locations (white and red arrows), the trabeculotomy cleft are classified into an anterior incisional pattern (a, b) (seen with posterior-based flaps predominantly), middle incisional pattern (c, d) (seen with posterior- and anterior-based flaps), or posterior incisional pattern (e, f) (seen with anterior-based flap predominantly). (g, h) The trabeculotomy cleft is unclear because the OCT signal is blocked by a blood clot. The white arrows indicate a posterior-based flap; red arrows, an anterior-based flap; blue arrow, a blood clot; green arrows, the direction of the scan; and asterisk, the lumen of Schlemm’s canal.

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