Introduction: Cataract and glaucoma are one of the leading causes of blindness worldwide. The 
prevalence of both diseases is increasing with aging (Friedman et al., 2002). Aim of the work: By 
using Anterior Segment Optical Coherence Tomography (AS-OCT) evaluating anterior chamber 
angle (ACA) preoperatively and evaluating ACA and filtering bleb postoperatively after 
phacotrabeculectomy. Patients and Methods: This is a prospective study that included 30 eyes of 30 
patients with a diagnosis of: cataract and glaucoma from both sexes age from 42 to 72 years old 
underwent phacotrabeculectomy operation. Results: This is a prospective study detect diagnostic 
performance of AS-OCT in assessing the anterior chamber angle (ACA) pre and postoperatively and 
feltring bleb in phacotrabeculectomy. Conclusion: AS-OCT imaging of phacotrabeculectomy feltring 
bleb detect that we can diagnosed successful functioning bleb from its morphological character with 
controlled IOP, AS-OCT detect 9 cystic blebs, 12 diffuse, and 9 flat blebs with controlled IOP in all 
cases inspite of type of bleb and that explaend by cataract extraction.