Comparison of Ex-PRESS implantation versus trabeculectomy combined with phacoemulsification in primary open-angle glaucoma: a retrospective in vivo confocal microscopy study

Table 2 Preoperative and postoperative change of intraocular pressure (IOP) and anti-glaucoma medication

	Phaco-ExPRESS (n = 33)	Phaco-Trab (n = 34)	P value
IOP (mmHg)
PRE-OP	21.61 ± 5.72	21.60 ± 3.49	0.15
POST-OP 2 W	9.21 ± 2.59	10.91 ± 2.49	0.01
POST-OP 1 M	10.57 ± 2.58	12.08 ± 3.03	0.04
POST-OP 3 M	12.29 ± 3.03	12.54 ± 3.87	0.78
POST-OP 6 M	12.05 ± 3.01	12.52 ± 3.61	0.58
POST-OP 12 M	12.57 ± 2.81	13.29 ± 3.67	0.38
No. of anti-glaucoma medications at baseline	2.42 ± 1.20	2.47 ± 0.86	0.86
No. of anti-glaucoma medications at 12 M	0.24 ± 0.56	1.02 ± 1.08	< 0.01
No. of patients taking anti-glaucoma medications at 12 M	5	20	< 0.01
No. of patients achieved qualified success at 12 M	33 (100.0%)	31 (91.2%)	0.24
No. of patients achieved complete success at 12 M	28 (84.9%)	14 (41.2%)	< 0.01

PRE-OP= preoperative; POST-OP= postoperative; W= week; M= month. Bold font indicates signifcance of P < 0.05

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