Surgical outcomes of combined gonioscopy-assisted transluminal trabeculotomy and cataract surgery

Purpose: To evaluate the success, safety, and complication rates of gonioscopy-assisted transluminal trabeculotomy (GATT) combined with cataract surgery. Methods: A retrospective study was conducted for 32 patients who underwent GATT combined with phacoemulsification and intraocular lens implantation. Patients with primary open-angle glaucoma were enrolled. The primary outcome measures were visual acuity, intraocular pressure (IOP), the number of antiglaucoma medications used, and complications. Results: The average preoperative visual acuity of the patients was logMAR 1.57 ± 1.2, and the average postoperative visual acuity was logMAR 0.39 ± 0.38. A significant increase in visual acuity was observed post-surgery ( P rd postoperative month, the average IOP was 10.5 ± 2.2 mmHg, and in the 6 th postoperative month, the average IOP was 11.2 ± 2.4 mmHg. In all postoperative follow-ups, IOP was significantly lower than that during the preoperative period ( P Conclusion: Performing GATT in the same session as cataract surgery does not reduce the efficacy of GATT, yet this procedure reduces the incidence of the most frequent complication of GATT, i.e. hyphaema. Therefore, in convenient cases, combined surgery can safely be performed.