Table 1 Demographics and baseline ocular characteristics.

Age(y), mean ± SD

63.83 ± 8.63

65.02 ± 8.00

62.79 ± 9.09

0.152^a

 Range(y)

45–79

46–79

45–79

Gender

0.472^b

 Males, N (%)

56 (45.16%)

24 (41.38%)

32 (48.48%)

 Females, N (%)

68 (54.84%)

34 (58.62%)

34 (51.52%)

Prior glaucoma procedures, n (%)

12 (9.68%)

5 (8.62%)

7 (10.61%)

0.769^b

Trabeculectomy, n

9

3

6

Canaloplasty, n

3

2

1

Preoperative BCVA logMAR, mean ± SD

0.62 ± 0.50

0.75 ± 0.43

0.50 ± 0.54

0.006^a

Preoperative IOP (mmHg), mean ± SD

27.00 ± 7.33

26.40 ± 6.37

27.54 ± 8.09

0.389^d

Preoperative antiglaucoma medications, N, mean ± SD

3.24 ± 0.73

3.12 ± 0.80

3.35 ± 0.64

0.081^d

HVF MD values

0.971^c

 ≥−12 dB, n (%)

63 (50.81%)

30 (51.72%)

33 (50.00%)

 <−12 dB, n (%)

43 (27.42%)

20 (34.48%)

23 (34.85%)

 Unreliable, n (%)

18 (14.52%)

8 (13.79%)

10 (15.15%)

Follow-up duration(months), mean ± SD

18.67 ± 5.10

18.83 ± 5.01

18.53 ± 5.21

0.747^a