IOP Preoperative (mean±sd) Postoperative (mean±sd) p Trab(n=14 eyes) 30.5±13.1 11.4±3.8 <0.0001 NPTS(n=6 eyes) 20.3±4.7 12.2±3.1 <0.0001 IOP=intraocular pressure, NPTS= non-penetrating trabecular surgery, Trab=trabeculetomy

Table 2: Preoperative and last postoperative IOP.