Comparison of ExPress Mini-Device Implantation Alone or Combined with Phacoemulsification for the Treatment of Open-Angle Glaucoma

Table 4

Visual acuity (logMAR) mean values, median values, standard deviations, and range in the phaco-ExPress (P-ExPress) and ExPress (ExPress) groups at specific times after surgery.

Time	P-ExPress			ExPress
	Mean (SD)	Median	Range	Mean (SD)	Median	Range
Pre-op	0.54 ± 0.56	0.3	0.16–0.77	0.33 ± 0.4	0.16	0.0–523	0.020
1st day	0.8 ± 0.57	0.7	0.3–1.22	0.45 ± 0.36	0.3	0.16–0.67	0.006
7th day	0.5 ± 0.65	0.22	0.97–0.67	0.37 ± 0.33	0.3	0.097–0.52	0.968
1st month	0.41 ± 0.5	0.22	0.97–0.67	0.27 ± 0.33	0.16	0.024–0.398	0.444
3rd month	0.24 ± 0.44	0.13	0.0–0.22	0.34 ± 0.5	0.1	0.0–0.4	0.674
6th month	0.24 ± 0.45	0.05	0.0–0.19	0.24 ± 0.36	0.16	0.0–0.301	0.378
9th month	0.42 ± 0.61	0.22	0.0–0.398	0.29 ± 0.46	0.05	0.0–0.398	0.687
12th month	0.32 ± 0.49	0.19	0.0–0.467	0.37 ± 0.67	0.1	0.0–0.650	0.829

Mann-Whitney test.