Table 1 Clinical characteristics of the Ologen-augmented (Oloxen) and non-augmented (Xen) groups during standalone XEN gel stent implantation

Age, years (mean ± SD)

59.81 ± 15.62

58.10 ± 15.93

0.651*

Gender, n, male:female (%)

26:16 (61.9%:38.1%)

19:11(63.3%:36.7%)

0.902^†

Laterality, n, OD:OS (%)

17:25 (40.5%:59.5%)

16:14 (53.3%:46.7%)

0.280^†

HTN, n, yes:no (%)

14:28 (33.3%:66.7%)

11:19 (36.7%:63.3%)

0.770^†

DM, n, yes:no (%)

10:32 (23.8%:76.2%)

5:25 (16.7%:83.3%)

0.462^†

Preoperative visual acuity, logMAR (mean ± SD)

0.34 ± 0.43

0.56 ± 0.51

0.059*

Preoperative intraocular pressure, mmHg (mean ± SD)

17.60 ± 5.87

20.47 ± 6.46

0.054*

Prior glaucoma surgery, n, yes:no (%)

5:37 (11.9%:88.1%)

4:26(13.3%:86.7%)

0.858^†

Number of preoperative anti-glaucoma medications, n (mean ± SD)

3.57 ± 0.83

3.67 ± 1.32

0.709*

Preoperative diagnosis (%)

0.770^†

Primary open-angle glaucoma

28 (66.7%)

19 (63.3%)

Secondary open-angle glaucoma

14 (33.3%)

11 (36.7%)

Lens, n, phakic:pseudophakic (%)

20:22 (47.6%:52.4%)

12:18 (40.0%:60.0%)

0.532^†

CCT, (mean ± SD)

531.42 ± 46.76

535.27 ± 37.99

0.786*

ECD, (mean ± SD)

2340.36 ± 481.67

2233.23 ± 584.71

0.398*

Axial length, mm, (mean ± SD)

25.05 ± 2.19

25.91 ± 2.41

0.162*

RNFL thickness, (mean ± SD)

66.50 ± 9.86

71.56 ± 10.67

0.068*

VFI, (mean ± SD)

55.73 ± 25.11

58.89 ± 30.40

0.654*

MD, (mean ± SD)

-15.73 ± 7.90

-14.57 ± 9.15

0.590*

PSD, (mean ± SD)

9.93 ± 3.45

8.35 ± 4.75

0.154*