Traditional versus modified trabeculectomy in primary open angle glaucoma

Two groups of primary open angle glaucoma patients, each of 50 patients, were undergone trabeculectomy. In the first group, [59 eyes], traditional trabeculectomy-where the excised internal corneo-scleral block almost reached the edges of the scleral flap-was performed. The second group [68 eyes], were undergone a modified trabeculectomy. Where internal corneo-sclectomy stopped 1 mm short the edgs of the covering scleral flap i.e., leaving a ledge of 1mm. Cases of either group were followed up for 8-10 months for postoperative complications and intraocular pressure [10P] control. It was found that; modified trabeculectomy was associated with a significantly lower incidence of postoperative shallow or flat chamber and their sequences. Both procedures were effective regarding postoperative intra-ocular pressure control with insignificant difference