Table 2.
Changes of intraocular pressure and best-corrected visual acuity after Ahmed glaucoma valve implantation in the 2 groups.
| Total | IVB group (n = 45 eyes) | Control (n = 25 eyes) | P value |
|
| |||
| Baseline IOP (mmHg) | 40.3 ± 9.7 | 41.0 ± 8.4 | 0.759 |
| PO 1-year IOP (mmHg) | 15.3 ± 3.7 | 15.6 ± 2.8 | 0.660 |
| Final IOP (mmHg) | 15.5 ± 4.2 | 16.6 ± 4.4 | 0.290 |
| Final BCVA (LogMAR) | 1.62 ± 1.19 | 1.92 ± 1.29 | 0.334 |
| BCVA increased | 16 (36) | 8 (32) | 0.320 |
| BCVA unchanged | 20 (44) | 8 (32) | |
| BCVA decreased | 9 (20) | 9 (336) | |
|
| |||
| PAS less than 50% | IVB group (n = 35 eyes) | Control (n = 11 eyes) | P value |
|
| |||
| Baseline IOP (mmHg) | 40.7 ± 9.6 | 38.6 ± 8.1 | 0.497 |
| PO 1-year IOP (mmHg) | 15.5 ± 3.5 | 15.6 ± 2.2 | 0.958 |
| Final IOP (mmHg) | 15.7 ± 4.1 | 15.6 ± 2.2 | 0.880 |
| Final BCVA (LogMAR) | 1.51 ± 1.17 | 0.91 ± 1.14 | 0.140 |
| BCVA increased | 14 (40) | 5 (46) | 1.000 |
| BCVA unchanged | 14 (40) | 4 (36) | |
| BCVA decreased | 7 (20) | 2 (18) | |
|
| |||
| PAS more than 50% | IVB group (n = 10 eyes) | Control (n = 14 eyes) | P value |
|
| |||
| Baseline IOP (mmHg) | 38.7 ± 10.3 | 42.9 ± 8.4 | 0.281 |
| PO 1-year IOP (mmHg) | 14.5 ± 4.4 | 15.7 ± 3.3 | 0.447 |
| Final IOP (mmHg) | 14.5 ± 4.4 | 17.4 ± 5.6 | 0.182 |
| Final BCVA (LogMAR) | 2.00 ± 1.25 | 2.71 ± 0.73 | 0.128 |
| BCVA increased | 2 (20) | 3 (21) | 0.273 |
| BCVA unchanged | 6 (60) | 4 (29) | |
| BCVA decreased | 2 (20) | 7 (50) | |
IVB = intravitreal bevacizumab; IOP = intraocular pressure; PO = postoperative; BCVA = best-corrected visual acuity; MAR = minimal angle of resolution; PAS = peripheral anterior synechiae. Continuous variables are represented as mean ± standard deviation and categorical variables as number (%).