[Ultrastructural observations of the anterior chamber angle tissues in congenital glaucoma]

18 trabeculectomy specimens of congenital glaucoma were examined by light and transmission electron microscopy with the finding that the primary anomalies in congenital glaucoma included the developmental defect of trabecular meshwork, excessive collagen fibrils in the trabecular matrix, shifting forward of ciliary muscle fibers, and persistent mesenchymal tissue in the chamber angle. The authors also pointed out the importance of the secondary lesions of the trabecular meshwork in the pathogenesis of congenital glaucoma.