IOPs following microtrabeculectomy
| At presentation | Preop | 6 mon ths | 1 year | 2 years | 3 years | 4 years | 5 years | 6 years | |
|---|---|---|---|---|---|---|---|---|---|
| Number of eyes | 36 | 36 | 36 | 36 | 36 | 29 | 22 | 15 | 8 |
| Mean IOP (mm Hg) | 33.7 | 24.6 | 11.9 | 12.6 | 13.2 | 13.7 | 13.2 | 12.7 | 12.3 |
| SD | 7.5 | 4.5 | 4.6 | 4.7 | 4.6 | 4.1 | 4.0 | 4.8 | 3.9 |
| Median IOP | 32 | 24 | 12 | 12 | 14 | 14 | 13 | 14 | 11 |









