Prospective Randomized Study Comparing Combined Phaco-ExPress and Phacotrabeculectomy in Open Angle Glaucoma Treatment: 12-Month Follow-Up

Table 4

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

Time	P-ExPress			P-Trab
	Mean (SD)	Median	Range	Mean (SD)	Median	Range
Pre-op	0.54 ± 0.56	0.30	0–2.4	0.34 ± 0.43	0.22	0–2	0.046
1st day	0.81 ± 0.58	0.70	0–2	0.53 ± 0.49	0.30	0.05–2	0.037
7th day	0.43 ± 0.52	0.22	0–2	0.39 ± 0.45	0.22	0–2	0.780
1st month	0.38 ± 0.45	0.22	0–1.7	0.34 ± 0.49	0.15	0–2	0.621
3rd month	0.24 ± 0.44	0.12	0–1.7	0.18 ± 0.29	0.07	0–1.4	0.570
6th month	0.24 ± 0.45	0.05	0–1.7	0.2 ± 0.3	0.13	0–1.4	0.530
9th month	0.4 ± 0.54	0.13	0.0–1.7	0.18 ± 0.31	0.10	0–1.4	0.863
12th month	0.3 ± 0.49	0.22	0–1.7	0.14 ± 0.18	0.02	0–0.4	0.259

P-ExPress: phaco-ExPress group; P-Trab: phacotrabeculectomy group; SD: standard deviation; Pre-op: preoperatively, Mann-Whitney test.