Cumulative complication rates in the currently used GDDs
| Complications | Ahmed valve (n=115) Coleman 199526 Coleman 199743Coleman 199744 | Krupin valve with disc (n=75) Krupin Study Group 199445 Fellenbaum 199424 | Baerveldt implant (n=249) Lloyd 199448 Sidoti 199547 Smith 199351 Siegner 199546 | Molteno implant (n=395) Mills 199639 Minckler 198842 Lloyd 199252 Heuer 199241 | |
|---|---|---|---|---|---|
| Hypotony/flat anterior chamber | 3.5% | 27% | 16.5% | 5% | |
| Choroidal effusion/haemorrhage | 14% | 33% | 23% | 7% | |
| Suprachoroidal haemorrhage | 3.5% | 1.3% | 0.8% | 0.5% | |
| Hyphaema | 0 | 1.3% | 11% | 4% | |
| Vitreous haemorrhage | 3.5% | 1.3% | 7% | 2% | |
| Uveitis | 1.7% | 9.3% | 3.6% | 0.5% | |
| Malignant glaucoma | 0.9% | 2.7% | 2% | 0.5% | |
| Motility problem | 3.5% | 4% | 21% | 0.3% | |
| Cataract | N/A | N/A | 9.9% | 12% | |
| Tube blocked | 7.8% | 11% | 10 | 6% | |
| Tube retraction | 5.2% | 2.7% | 2.4% | 0.8% | |
| Tube/plate extrusion | 4.3% | N/A | 1.2 | 0.5% | |
| Tube/plate erosion | 0 | 2.7% | 2 | 3% | |
| Corneal touch | 2.6% | N/A | 4% | 3% | |
| Corneal decompensation | 3.5% | 5.3% | 11.6% | 14% | |
| Retinal detachment | 0 | 0 | 5% | 3.5% | |
| Encepsulated bleb | 3.5% | 1.3% | 1.6% | N/A | |
| Phthisis | 0 | 1.3% | 2.4% | 4% | |
| Others | 1.7% Wound leak | 1.3% Wound leak | 1.6% Wound leak | 0.3% Epiretinal membrane | |
| 1.3% Endophthalmitis | 0.4% Endophthalmitis | 0.3% Perforation | |||
| 1.3% Decompression retinopathy | |||||