Short-term outcomes of Tanito microhook ab interno trabeculotomy combined with phacoemulsification in primary open-angle glaucoma - A pilot study

The aim of the study was to assess the early postoperative efficacy and safety of Tanito microhook (TMH) ab interno trabeculotomy combined with phacoemulsification in patients with primary open-angle glaucoma (POAG). This prospective interventional study was conducted on consecutive patients with visually significant cataract and mild-moderate POAG. All patients underwent a temporal clear corneal phacoemulsification combined with TMH ab interno trabeculotomy. Postoperative evaluation was done on day 1, 1 month, and 3 months. The outcome measures included intraocular pressure (IOP) at different follow-ups and postoperative complications. In total, 30 eyes of 30 patients were included in the study. There were 16 (53.3%) females and 14 (46.7%) males with a mean age of 62.63 ± 6.7 years. The mean IOP reduced from 23.57 ± 1.65 to 17.33 ± 2.84 at 3 months (P < 0.001). All eyes had a corrected distance visual acuity ≥6/9 at 1 month postoperatively. Postoperative complications included corneal stromal edema in eight (26.7%) eyes, hyphema in four (13.3%) eyes, and IOP spike in one (3.3%) eye. TMH ab interno trabeculotomy combined with phacoemulsification in patients with mild-moderate POAG is an effective and safe procedure with fewer complications.