Imaging of Trabeculectomy Blebs Using Anterior Segment Optical Coherence Tomography (original) (raw)

Objective: To image trabeculectomy blebs using anterior segment optical coherence tomography (AS-OCT). Design: Prospective cross-sectional study. Participants: Fifty-five patients who had previously undergone trabeculectomy surgery. Methods: All blebs were imaged with a prototype of the AS-OCT. Standardized color monophotographs of blebs were also obtained. Blebs were assessed for the following qualitative features: bleb height, thickness of the conjunctiva in the bleb wall, presence of cystic spaces within the bleb wall, apposition of the scleral flap to underlying sclera, and patency of the internal ostium.