Table 1. Reported pre- and post-operative intraocular pressure in studies included in meta-analysis.
| Author (Year) | Study Design | Study Location | Number of iStent | N | Follow-up (months) | Mean Age | Age (SD) | Baseline IOP (Mean) | Baseline IOP (SD) | Outcome IOP (Mean) | Outcome IOP (SD) | IOPR% | SD_IOPR% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ahmed (2012) [ 40 ] | Case Series | Canada | 1 | 30 | 6 | - | - | 23.3 | 1.3 | 16.1 | 4.4 | 31 | 12 |
| Case Series | Canada | 2 | 30 | 6 | - | - | 23.2 | 0.9 | 13.7 | 2.5 | 41 | 11 | |
| Case Series | Canada | 3 | 30 | 6 | - | - | 23.2 | 2.4 | 13.6 | 2.1 | 41 | 14 | |
| Buznego (2009)[ 32 ] | Cohort | U.S. | 1 | 41 | 18 | - | - | 21.5 | 6.9 | 16.7 | 6.9 | 22 | 45 |
| Charters (2013)[ 30 ] | RCT | U.S. | 2 | 39 | - | - | - | 30 | 4.0 | 13.2 | 0.0 | 56 | 13 |
| Singh (2012)[ 41 ] | Case Series | Canada | 2 | 39 | 6 | 73 | 0 | 19.1 | 3.8 | 15.1 | 2.7 | 21 | 24 |
| Case Series | Canada | 2 | 39 | 12 | 73 | 0 | 19.1 | 3.8 | 15.9 | 0.9 | 17 | 20 | |
| Voskanyan (2014)[ 39 ] | Case Series | France, Germany, Italy, Republic of Armenia, Spain | 1 | 99 | 1 | 66.4 | 10.9 | 26.3 | 3.5 | 17 | 6.4 | 41 | 18 |
| Case Series | France, Germany, Italy, Republic of Armenia, Spain | 1 | 99 | 3 | 66.4 | 10.9 | 26.3 | 3.5 | 16.6 | 4.5 | 41 | 18 | |
| Case Series | France, Germany, Italy, Republic of Armenia, Spain | 1 | 99 | 6 | 66.4 | 10.9 | 26.3 | 3.5 | 16.8 | 4.1 | 41 | 18 | |
| Case Series | France, Germany, Italy, Republic of Armenia, Spain | 1 | 99 | 7 | 66.4 | 10.9 | 26.3 | 3.5 | 15.8 | 3.2 | 41 | 18 | |
| Case Series | France, Germany, Italy, Republic of Armenia, Spain | 1 | 99 | 9 | 66.4 | 10.9 | 26.3 | 3.5 | 15.5 | 3 | 41 | 18 | |
| Case Series | France, Germany, Italy, Republic of Armenia, Spain | 1 | 99 | 12 | 66.4 | 10.9 | 26.3 | 3.5 | 15.7 | 3.7 | 41 | 18 |
Weighted mean reduction in IOPR% following two iStents implantation at 6-months: 30.