Trabeculectomy and modifications of trabeculectomy.

Seventy-four trabeculectomies have been reviewed and discussed. Intraocular pressure 20 mm Hg or lower was achieved in 74.2% at the end of six months and in 66% one year postoperatively. The influence of age and sex on postoperative maintainance of intraocular pressure has also been discussed. There was not a statistical difference in results when the sex of the patients were compared. Patients under age forty did poorly in this series as compared to patients over age forty-one. Tenonectomy and cautery to the posterior edges of the scleral flap have been beneficial. The insertion of a gel film or silastic implant under the posterior edge of the scleral flap has been studied but in too few patients to draw any valid conclusions. In general, our results have been satisfactory with very few operative or postoperative complications.