Total unadjusted costs in each arm in first and second 12 months of trial follow-up
| Total cost | Trabeculectomy | Medical management | ||
| Mean | SD | Mean | SD | |
| Total cost to the NHS over 24 months (£) | 3826 | 1648 | 1685 | 1401 |
| Total cost to the NHS between baseline and 12 months (£) | 3157 | 1299 | 1067 | 1299 |
| Total cost to the NHS between 12 and 24 months (£) | 669 | 977 | 618 | 632 |
NHS, National Health Service.