Studies showing unfavourable results
| Reference | Procedure | Mean IOP in the 1st PO day | Complete success |
|---|---|---|---|
| PO = postoperative. | |||
| 0’Brart et al22 | Viscocanalostomy | 9.2 | 64% (12 months) |
| Drusedau et al20 | Viscocanalostomy | 18.6 (SD 7.5) | 36% (12 months) |
| Chiselita13 | DS | 9.8 (SD NA) | 44.5% (18 months) |
| Luke et al24 | Viscocanalostomy | 15.7 (SD 3.6) | 30% (at 12 months) |