Tetracaine group (n = 30) | Image group (n = 30) | P value | |||
---|---|---|---|---|---|
Mild | Moderate & Severe | Mild | Moderate & Severe | ||
0.5 h | 26(86.7%) | 4(13.3%) | 28 (93.3%) | 2 (6.7%) | 0.671 |
1 h | 18 (60.0%) | 12 (40.0%) | 26 (86.7%) | 4 (13.3%) | 0.039 |
2 h | 12 (40.0%) | 18 (60.0%) | 20 (66.7%) | 10 (33.3%) | 0.038 |
6 h | 12 (40.0%) | 18 (60.0%) | 20 (66.7%) | 10 (33.3%) | 0.038 |