The paper presents the results in surgical treatment of open angle glaucoma with a removable suture trabeculectomy technique. 25 eyes of 19 patients with different stages of open angle glaucoma were operated; 7 eyes had pseudoexfoliation glaucoma. The results obtained on this patients were compared to those obtained on the patients operated with classical trabeculectomy. In the final we discuss also the results presented by the Italian authors. Preoperative medium IOP was 33.04 mmHg +/- 13. The pressional reduction was over 50% on the patients with preoperative values of IOP under 30 mmHg, and over 70% on the patients with preoperative values of IOP over 30 mmHg. The follow-up period was 6 months. In the present all patients have IOP in normal ranges without additional medication.