Parameters | Control group (n = 273) | High myopia group (n = 105) | Extreme myopia group (n = 78) | P value |
---|---|---|---|---|
Age (years)a | 60.5 ± 12.0 | 58.4 ± 9.2 | 57.7 ± 9.1 | 0.063 |
Sex, male/femaleb | 119/154 | 42/63 | 37/41 | 0.602 |
Eye laterality, right/leftb | 141/132 | 52/53 | 42/36 | 0.844 |
Axial length (mm)a | 23.73 ± 1.08 | 26.83 ± 0.63 | 29.09 ± 0.87 |  < 0.001 |
Preoperative corneal power (D)a | 43.09 ± 1.17 | 43.06 ± 1.41 | 42.82 ± 0.96 | 0.211 |
Preoperative corneal astigmatism (D)a | 0.64 ± 0.37 | 0.69 ± 0.39 | 0.73 ± 0.42 | 0.193 |
Mu chord (mm)a | 0.20 ± 0.11 | 0.21 ± 0.11 | 0.21 ± 0.11 | 0.946 |
Mesopic pupil diameter (mm)a | 4.66 ± 0.72 | 4.70 ± 0.65 | 4.85 ± 0.63 | 0.111 |
Photopic pupil diameter (mm)a | 3.51 ± 0.44 | 3.50 ± 0.46 | 3.59 ± 0.41 | 0.333 |
Preoperative CDVA (logMAR)a | 0.58 ± 0.39 | 0.64 ± 0.37 | 0.61 ± 0.41 | 0.375 |
IOL power (D)a | 19.8 ± 3.1 | 11.4 ± 3.8 | 7.6 ± 4.6 |  < 0.001 |