Trabeculectomy with scleral tunnel treating refractory glaucoma / 眼科

ABSTRACT

Objective To investigate the clinical effecl of trabeculectomy with scleral tunnel in the treatment of refractory glaucoma. Design Prospective, randomized and comparative clinical study. Participants 87 patients (98 eyes) with refractory glaucoma. Methods The patients were randomly assigned to receiving trabeculectomy with or without scleral tunnel. The tunnel group (50 eyes) underwent trabeculectomy with an additional deep scleral tunnel of 5.0mm?1.5mm beneath the superficial scleral flap. The control group (48 eyes) underwent conventional trabeculectomy. The average follow-up period was 6 to 12 months posloperatively. Main Outcome Measures Visual acuity, intraocular pressures (IOP), filtering blebs, operative and postoperative complications. Results (1) No significant differences in visual acuity were found between two groups. (2) The postoperative IOPs were significantly lower than the preoperative IOPs in both groups, while the IOPs on the 7th day after the surgery between the two groups were not different significantly. The average postoperative IOP at the 6th month in the tunnel group was 14.34?3.95 mmHg and 19.57?7.76 mmHg in the control group, which were different significantly (P