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Table 1 Patients’ characteristics at baseline

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

 

Phaco-ExPRESS

(n = 33)

Phaco-Trab

(n = 34)

P value

Gender (M/F)

17 / 16

18 / 16

0.91

Age (years)

74.76 ± 4.75

72.50 ± 6.86

0.12

MD (dB)

− 14.49 ± 6.21

− 16.44 ± 7.89

0.27

PSD (dB)

7.58 ± 3.22

7.16 ± 3.09

0.58

Mild/moderate/severe (%)

12.1 / 27.3 / 60.6

5.9 / 38.2 / 55.9

0.50

BCVA (logMAR)

0.29 ± 0.18

0.29 ± 0.16

0.10

CCT (mm)

542.24 ± 16.85

545.44 ± 21.53

0.83

C/D ratio

0.84 ± 0.12

0.81 ± 0.11

0.12

Average thickness of GCC (μm)

75.34 ± 8.56

74.86 ± 14.51

0.12

Average thickness of pRNFL (μm)

72.38 ± 10.93

70.81 ± 12.91

0.71

Axial length (mm)

23.84 ± 1.49

23.92 ± 1.13

0.69

Corneal endothelial cell count (cells/mm2)

2037.58 ± 262.30

2017.65 ± 260.36

0.76

Preoperative hyperreflective dot count (cells/mm2)

0.55 ± 1.33

0.71 ± 1.55

0.40

  1. M/F = male/female; MD = mean deviation; PSD = pattern standard deviation; Mild/moderate/severe = mild stage/moderate stage/severe stage of glaucoma; BCVA = best-corrected visual acuity; CCT = central corneal thickness; C/D ratio = cup to disc ratio; GCC = ganglion cell complex; pRNFL = peripapillary retinal nerve fiber layer. P value < 0.05 is considered statistically significant