Table 2. Reported pre- and post-operative topical glaucoma medications in studies included in meta-analysis.
| Author (Year) | Number of iStent | N | Follow-up (months) | Baseline Medications(Mean) | Baseline Medications (SD) | Outcome Medications (Mean) | Outcome Medications (SD) | Mean Reduction in Total Medications |
|---|---|---|---|---|---|---|---|---|
| Ahmed (2012) [ 40 ] | 1 | 30 | 6 | 2.0 | 0.5 | 1.0 | 0.5 | 1.0 |
| 2 | 30 | 6 | 2.0 | 0.5 | 1.0 | 0.5 | 1.0 | |
| 3 | 30 | 6 | 2.0 | 0.5 | 1.0 | 0.5 | 1.0 | |
| Buznego (2009)[ 32 ] | 1 | 41 | 18 | 1.6 | 1.7 | 0.4 | 1.7 | 1.2 |
| Charters (2013)[ 30 ] | 2 | 39 | - | 1.0 | - | 0.1 | - | 0.9 |
| Singh (2012)[ 41 ] | 2 | 39 | 6 | 2.5 | 1.1 | 0.7 | 1 | 1.8 |
| 2 | 39 | 12 | 2.5 | 1.1 | 0.52 | 0.9 | 1.98 | |
| Voskanyan (2014)[ 39 ] | 1 | 99 | 1 | 2.21 | 0.44 | - | - | - |
| 1 | 99 | 3 | 2.21 | 0.44 | - | - | - | |
| 1 | 99 | 6 | 2.21 | 0.44 | - | - | - | |
| 1 | 99 | 7 | 2.21 | 0.44 | - | - | - | |
| 1 | 99 | 9 | 2.21 | 0.44 | - | - | - | |
| 1 | 99 | 12 | 2.21 | 0.44 | 0.414 | 1.0 | 1.796 |
Weighted mean reduction in medications following two iStents implantation at 6-months: 1.45.