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The axial length in different DIA.
| Group | Cases | Axial length in the eye with less IA (mm) | Axial length in the eye with larger IA (mm) | t | P |
|---|---|---|---|---|---|
| DIA = 0 D | 128 | 23.27 ± 0.99 (right eye) | 23.29 ± 0.96 (left eye) | 0.89 | >0.05 |
| 0 < DIA< 0.5 D | 292 | 23.22 ± 0.92 | 23.24 ± 0.95 | 0.44 | >0.05 |
| DIA ≥ 0.5 D | 192 | 23.17 ± 0.95 | 23.28 ± 0.97 | 2.65 | <0.05 |
DIA: difference of internal astigmatism between both eyes; IA: internal astigmatism.
