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Table 1 Summary of outflow facility and resistance studies

From: Hydrus microstent implantation for surgical management of glaucoma: a review of design, efficacy and safety

Publication

Intervention

N Anterior Segments

Baseline Outflow Facility (μL/min/mmHg)

Outflow Facility Post-Implant (μL/min/mmHg)

p

Baseline Outflow Resistance (mmHg/μL/min)

Outflow Resistance Post-Implant (mmHg/μL/min)

p

Camras et al. 2012 [39]

Hydrus 15 mm

9

0.19 ± 0.02

0.39 ± 0.07

< 0.01

–

–

–

Controls

7

0.20 ± 0.03

0.23 ± 0.03

> 0.05

–

–

–

Gulati et al. 2013 [23]

Hydrus 8 mm

24

0.33 ± 0.17

0.52 ± 0.19

< 0.001

4.38 ± 3.03

2.34 ± 1.04

< 0.001

Controls

24

0.39 ± 0.21

0.38 ± 0.19

0.82

4.30 ± 3.64

3.47 ± 1.68

0.31

Hays et al. 2014 [41]

Hydrus 8 mm

12

0.28 ± 0.10

0.44 ± 0.13

0.001

4.30 ± 1.91

2.68 ± 1.16

0.0016

2 iStents

12

0.29 ± 0.09

0.37 ± 0.12

0.046

4.05 ± 1.42

3.17 ± 1.18

0.004