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. 2017 Apr 27;12(4):e0176386. doi: 10.1371/journal.pone.0176386

Fig 9. Case 4.

Fig 9

Trabeculectomy sample from the left eye. A: Light micrographs. B-D: Transmission electron microscopy. A: Uveal trabecular meshwork. The intertrabecular spaces are open (b). Most of the trabecular endothelial cells have disappeared and those remaining are necrotic (N). Numerous red blood cells appear between the trabecular beams (arrowhead). B-D: High magnification of an uveal trabecular meshwork trabecular beam. B: Cross section. C and D: Longitudinal section. The trabecular core is filled with successive layers of collagen fibers (C) giving the appearance of onion-like layers. The collagen of the basal membrane (bm) is interspersed between successive layers of fibrillary collagen (C). In B-D necrotic remains of the endothelial cells lining the trabecular beams are observed (N). [e: elastic-like fibers; nf: non-fibrillary collagen VI].