Background: In glaucoma patients, anterior chamber angle anatomy in perspective of ocular biometry may be the key element to intraocular pressure (IOP) reduction. The wide variety of features that may be utilized to diagnose and track persons with this spectrum of disorders is the result of substantial research in the field as well as the continuous advancement of anterior segment optical coherence tomography technology and software. These characteristics must be investigated further in order to determine their clinical importance. The purpose of this research is to determine if surgical cataract removal is advantageous for those who have primary narrow-angle glaucoma. Anterior Segment Optical Coherence Tomography is an effective imaging modality for visually identifying the anterior segment structure, by obtaining high-resolution cross-sections of the entire anterior chamber in a single image Techniques for Conducting Research: A randomized, prospective design is used in this clinical investigation. Methods and Cases: The study included 30 patients (21 men and 9 women) with angle closure glaucoma and any level of cataract who visited the outpatient clinic at Assiut AL Azhar University Hospital. The patients' ages varied from 42.0 to 70.0 years old, with an average of 57.67.81. Result: When comparing IOP before and after the surgery, there was a substantial statistical difference between the two time periods. Prior to surgery, the mean was 35.13 ± 11.69SD. One week after surgery, the average was 16.67 ± 5.05SD. The average surgical result at 4 weeks was 13.80 ± 4.08SD. At 12 weeks after surgery, the mean value was 13.13 ± 4.21SD. Conclusion: Our findings demonstrate how AS-OCT may be utilized to evaluate the AC angle following cataract removal and peripheral iridotomy. Patients undergoing therapeutic cataract extraction to broaden a narrow angle may benefit from this type of pre- and post-operative screening. This approach is associated with the terms AS-OCT, glaucoma, and cataract.