| 组别 | 例数n | 症状评分 | |||
| 疼痛 | 异物感 | 畏光 | 流泪 | ||
| A组 | 32 | 0.3 ± 0.02 | 2.0 ± 0.8 | 0.6 ± 0.05 | 0.7 ± 0.3 |
| B组 | 32 | 3.6 ± 0.2 | 3.9 ± 0.05 | 3.7 ± 0.3 | 3.8 ± 0.1 |
| P |
| <0.01 | <0.01 | <0.01 | <0.01 |