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Pain scores
| Pain score | Administration of local anaesthetic | Operation | Subconjunctival injection | After surgery |
| 0 | 37 (40.7%) | 69 (77.5%) | 70 (70.6%) | 76 (89.4%) |
| 1 | 19 (20.9%) | 12 (13.5%) | 10 (11%) | 7 (8.2%) |
| 2 | 19 (20.9%) | 5 (5.6%) | 6 (6.6%) | 1 (1.2%) |
| 3 | 7 (7.7%) | 1 (1.1%) | 5 (5.5%) | – |
| 4 | 2 (2.2%) | 1 (1.1%) | – | 1 (1.2%) |
| 5 | 4 (4.4%) | – | – | – |
| 6 | 1 (1.1%) | 1 (1.1%) | – | – |
| 7 | – | – | – | – |
| 8 | – | – | – | – |
| 9 | – | – | – | – |
| 10 | – | – | – | – |
| Total | 91 (100%) | 89 (100%) | 91 (100%) | 85 (100%) |
