Gayton et al. 3 | Cataract extraction with ECP (29) | IOP <19 mm Hg without glaucoma medication | 30%/1 y with ECP | | |
| Cataract extraction with trabeculectomy (29) | | 42%/1 y with trabeculectomy | | |
Lima et al. 4 | ECP (34) | Not available | Not available | IOP >6 and <21 mm Hg | 73.53%/2 y with ECP |
| | | | | 70.59%/2 y with Ahmed implant |
| Ahmed implant (34) | | | | |
Wilson et al. 5 | Ahmed implant (59) | IOP <21 mm Hg and at least 15% | 69.8%/1 y with Ahmed implant | | |
| Trabeculectomy (64) | IOP reduction | 68.1%/3 y with trabeculectomy | | |
Gedde et al. 6 | Baerveldt implant (107) | IOP <21 mm Hg and/or lowered by 20% or more | 84.9%/3 y with Baerveldt implant | | |
| Trabeculectomy (105) | | 69.3%/3 y with trabeculectomy | | |
De Jong et al. 11 | Ex-PRESS (39) | IOP >4 and ≤18 mm Hg | 66.7%/3 y with Ex-PRESS | | |
| Trabeculectomy (39) | | 41%/3 y with trabeculectomy | | |
Gianoli et al. 12 | Phacoemulsification with deep sclerectomy (30) | IOP <21 mm Hg | 59%/1 y with phacoemulsification with deep sclerectomy | | |
| Phacoemulsification with trabeculectomy (30) | | 52%/1 y with phacoemulsification with trabeculectomy | | |
D'Eliseo et al. 13 | Deep sclerectomy (21) | IOP ≤20 mm Hg | 61.9%/1 y with deep sclerectomy | | |
| Phacoemulsification with deep sclerectomy (21) | | 90%/1 y with phacoemulsification with deep sclerectomy | | |
Cillino et al. 14 | Deep sclerectomy (17) | IOP ≤21 mm Hg | 52.9%/2 y with deep sclerectomy | | |
| Phacoemulsification with deep sclerectomy (15) | | 46.4%/2 y with phacoemulsification and deep sclerectomy | | |
| Trabeculectomy (18) | | 55.5%/2 y with trabeculectomy | | |
| Phacoemulsification with trabeculectomy (15) | | 46.6% with phacoemulsification and trabeculectomy | | |
Russo et al. 15 | Deep sclerectomy (43) | IOP <21 mm Hg | 51.1%/2 y with deep sclerectomy | | |
| Trabeculectomy (50) | | 72%/2 y with trabeculectomy | | |
Cillino et al. 16 | Deep sclerectomy (19) | IOP ≤21 mm Hg | 52.6%/2 y with deep sclerectomy | | |
| Trabeculectomy (21) | | 66.6%/2 y with trabeculectomy | | |
Jonescu-Cuypers et al. 17 | Viscocanalostomy (10) | IOP >7 and <20 mm Hg | 0%/6 mo with viscocanalostomy | | |
| Trabeculectomy (10) | | 50%/6 mo with trabeculectomy | | |
O'Brart et al. 18 | Trabeculectomy (25) | IOP <21 mm Hg | 100%/1 y with trabeculectomy | | |
| Viscocanalostomy (25) | | 64%/1 y with viscocanalostomy | | |
Luke et al. 19 | Trabeculectomy (30) | IOP <22 mm Hg | 56.7%/1 y with trabeculectomy | | |
| Viscocanalostomy (30) | | 30%/1 y with viscocanalostomy | | |
Carassa et al. 20 | Trabeculectomy (25) | IOP >6 and <21 mm Hg | 80%/2 y with trabeculectomy | | |
| Viscocanalostomy (25) | | 76%/2 y with viscocanalostomy | | |
Yalvac et al. 21 | Trabeculectomy (25) | IOP >6 and <21 mm Hg | 55.1%/3 y with trabeculectomy | | |
| Viscocanalostomy (25) | | 35.3%/3 y with viscocanalostomy | | |
Kobayashi and Kobayashi 22 | Trabeculectomy (20) | IOP <20 mm Hg | 80%/1 y with trabeculectomy | | |
| Viscocanalostomy (20) | | 85%/1 y with viscocanalostomy | | |
Gilmour et al. 23 | Trabeculectomy (25) | IOP <18 mm Hg | 42%/40 mo with trabeculectomy | | |
| Viscocanalostomy (25) | | 21%/40 mo with viscocanalostomy | | |
Samuelson et al. 26 | Cataract extraction with iStent (111) | IOP <21 mm Hg | 72%/1 y with iStent | | |
| Cataract extraction without iStent (122) | | 50%/1 y without iStent | | |