Anterior Segment Optical Coherence Tomography Imaging of Conjunctival Filtering Blebs after Glaucoma Surgery
Figure 3
Failed filtering blebs. Nonfunctioning blebs, after MMC-augmented trabeculectomy, appear flat (a) or encapsulated (b) at clinical evaluation. At AS-OCT (Visante OCT) (c and d) these blebs present a patent and low reflective inner cavity but with a thick and hyperreflective bleb wall (arrows). In vivo laser scanning confocal microscopy (e) shows scattered and markedly less numerous intraepithelial microcysts in a glaucomatous patient who underwent failed MMC-augmented trabeculectomy (planar reconstruction of the superior bulbar conjunctiva 6 weeks after surgery). Arrowhead indicates the Ex-PRESS implantation. (e: from Mastropasqua et al., [16] with permission from the publisher).
