Table 2.
Preoperative and postoperative 18-month values in the ppAGV and acAGV groups.
| ppAGV (n = 18) | acAGV (n = 18) | P value | |
|---|---|---|---|
| ECC, cells/mm2 | |||
| Preoperative | 2337 ± 311 | 2334 ± 302 | 0.98 |
| Postoperative | 2044 ± 303 | 1904 ± 324 | 0.25 |
| P value | <0.001 | <0.001 | |
| BCVA, LogMAR | |||
| Preoperative | 1.76 ± 0.91 | 2.10 ± 0.93 | 0.31 |
| Postoperative | 1.27 ± 0.97 | 1.64 ± 1.18 | 0.21 |
| P value | 0.070 | 0.063 | |
| IOP, mmHg | |||
| Preoperative | 35.9 ± 7.6 | 39.7 ± 12.7 | 0.26 |
| Postoperative | 16.5 ± 7.5 | 17.1 ± 8.6 | 0.87 |
| P value | <0.001 | <0.001 | |
| Glaucoma medication | |||
| Preoperative | 2.9 ± 0.3 | 2.7 ± 0.6 | 0.39 |
| Postoperative | 1.5 ± 0.8 | 1.6 ± 0.8 | 0.52 |
| P value | <0.001 | <0.001 | |
| Surgical outcome (%) | |||
| Success | 16 88.8 | 14 77.8 | 0.66 |
| Failure | 2 11.2 | 4 22.2 |
ppAGV: pars plana implantation of an Ahmed glaucoma valve (AGV), acAGV: anterior chamber implantation of an AGV, ECC: endothelial cell count, BCVA: best corrected visual acuity, LogMAR: logarithm of the minimal angle of resolution, and IOP: intraocular pressure.