Reduction in intraocular pressure (IOP) by diagnosis
| Diagnosis | n | Mean preop IOP (mm Hg) | Final postop IOP (mm Hg) | % reduction | p Value |
| All patients | 119 | 38.2 (8.2) | 20.1 (11.0) | 47.4 | 0.00001 |
| Developmental | 38 | 34.9 (7.3) | 18.6 (8.7) | 46.7 | 0.00001 |
| POAG | 13 | 36.8 (7.5) | 20.2 (11.6) | 45.1 | 0.01 |
| CCAG | 10 | 43.6 (5.3) | 16.4 (13.3) | 62.4 | 0.007 |
| Uveitic | 19 | 39.4 (9.2) | 19.4 (9.8) | 50.8 | 0.0001 |
| Traumatic | 15 | 39.9 (10.0) | 22.5 (12.7) | 43.6 | 0.002 |
| Neovascular | 19 | 39.9 (7.1) | 24.0 (12.1) | 39.8 | 0.0003 |
| Miscellaneous | 5 | 40.6 (7.9) | 19.8 (15.5) | 51.2 | 0.1 |
POAG = primary open angle glaucoma; CCAG = chronic closed angle glaucoma.
Values are mean (SD).