The effect of Stab Incision Glaucoma Filtering Surgery on Intraocular Pressure in Primary Angle Closure Glaucoma

The current study aims to evaluate the stab incision trabeculectomy technique on the intraocular pressure in primary angle closure glaucoma patients. Patients indicated for glaucoma surgery were selected for this prospective interventional study. Twenty-four eyes of 24 patients were included in this study. IOP was measured by the Goldmann applanation tonometer preoperatively and in the follow-up on the first day, the seventh day, the first month, the third month and the sixth month. The preoperative mean intraocular pressure was 28 mmHg (SD 5.1). Mean Postoperative IOP on the first day, third day, first week, first month, third month, and the sixth month was (9.5 mmHg (SD 5.1), 10.9 mmHg (SD 3.1),13.2 mmHg (SD 3.7), 15.5 mmHg (SD 5.5),15 mmHg (SD 4) and 14.3 mmHg (SD 2.4) respectively). In postoperative titrations among the studied cases, 8 (33.3%) cases required needling, which was statistically significant. (P value 0.025 %). 11 (45.8 %) cases required massage, which was statistically significant. (P value 0.000 %). 4 (16.7 %) cases required surgery, which was statistically significant. (P value 0.004 %). 6 (25 %) cases required anti-glaucoma drops, which was statistically significant. (P value 0.021 %). Hyphema occurred in 1 case (4.2 %) of cases. Stab incision technique was a safe and quick alternative to conventional trabeculectomy. IOP control with fewer complications was observed during the first six months of follow‑up; mean Intraocular pressure was ~14 mmHg