Table 3. Sub-group analysis of relevant changes in astigmatism power and axis in the two-wall and three-wall decompression groups.
| Two-walled surgery (n = 25) | Three-walled surgery (n = 8) | P value | |
|---|---|---|---|
| Astigmatism Power Change, 3 mm (D) | |||
| Number of relevant change cases | 19 | 7 | |
| Relevant Power Change | 0.58±0.29 | 0.76±0.67 | 0.954* |
| Maximum Decrease | 1.2 | 0.5 | |
| Maximum Increase | 0.8 | 2.2 | |
| Astigmatism Axis Change, 3 mm (Degree) | |||
| Number of relevant change cases | 17 | 5 | |
| Relevant Axis Change | 14.94±5.61 | 19.4±13.4 | 0.606* |
| Maximum Decrease | 30 | 16 | |
| Maximum Increase | 26 | 43 |
*Groups were compared with the Mann-Whitney U-test (two-tailed).