Importance: The role of the filtration bleb for IOP management following trabeculectomy (TRAB) and deep sclerectomy (DS) in glaucoma is highlighted in this study.Background: This study serves to analyse the bleb morphology and IOP using the Indiana Bleb Appearance Grading Scale (IBAGS) and the anterior-segment optical coherence tomography (AS-OCT) postoperatively and at 3 months.
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