AIM:To report the results of phacoemulsification combined with posterior intraocular lens (IOL) implantation in treating angle-closure glaucoma with different severity of angle closure. METHODS:Phacoemulsification combined with posterior IOL implantation was performed in 64 eyes of 48 patients with angle-closure glaucoma. Visual acuity (VA), examination of anterior segment with slit-lamp microscope, examination of anterior chamber angle with Goldmann gonioscope, depth of anterior chamber and intraocular pressure (IOP) were recorded preoperatively and postoperatively. RESULTS:All the patients were followed up for 3 to 12 months. VA of 52 eyes were greatly improved. IOP of 59 eyes were below 21mmHg. Depth of anterior chamber all increased from average 1.803mm preoperatively to 3143mm postoperatively. The closed anterior chamber angles were open to varying extents. The irises were flat and the extension of peripheral anterior chamber adhesion was eliminated obviously. None of the 64 eyes was complicated by posterior capsular rupture or corneal decompensation. CONCLUSION:Phacoemulsification combined with posterior IOL implantation in treating angle-closure glaucoma with cataract will not only effectively lower IOP, deepen the anterior chamber, reopen the closed anterior chamber angle, but also restore VA and reduce the common complications of trabeculectomy. It is a safe and effective way to treat angle-closure glaucoma.