ABSTRACT
We evaluated the clinical results of phacoemulsification and posterior chamber lens implantation in posttrabeculectomy eyes. 26 eyes operated during Jan. 1990 to Dec.1995 were evaluated retrospectively with preoperative and postoperative visual acuity, intraocular pressure(IOP) and antiglaucomatous agent usage.The cataract operations were done by clear corneal incisions avoiding the filtering bleb sites. The average interval between trabeculectomy and cataract surgery was 25 months. From a total of 26 eyes 11 had the diagnosis of primary open angle glaucoma(POAG) and 12 eyes chronic angle closure glaucoma(CACG). The preoperative visual acuity was 0.3 or less in 53.8%, and the postoperative visual acuity was 0.4 or better in 57.7%. The preoperative and postoperative IOPs were 14.4+/-4.3mmHg and 15.3+/-4.6mmHg respectively, showing a slight increase. Filtering bleb failure was observed in one eye in which trabeculectomy was formed twice. Antiglaucomatous agent usage decreased to 8 cases from an initial 10 cases. The preoperative IOP of the 8 cases was 17.3+/-5.1mmHg, while it was 13.1+/-3.3mmHg in the 18 cases in which the IOP was controlled without treatment. There was a significant difference between the two(P=0.03). There was a significant relationship between preoperative and postoperative antiglaucomatous agent usage(P=0.01). Taken individually, POAG showed a greater incidence of postoperative antiglaucomatous agent usage than CACG, but was insignificant(P=0.56).