Table 1 Characteristics of highly myopic eyes in the training dataset, and the internal and external test datasets
Characteristics | Training dataset (n = 1462) | Internal test dataset (n = 361) | External test dataset (n = 150) | P value |
|---|---|---|---|---|
Eye laterality (right/left) | 756/706 | 186/175 | 78/72 | 0.736 |
Gender (male/female) | 687/775 | 157/204 | 71/79 | 0.801 |
AL (mm) | Â | Â | Â | 0.517 |
 Mean ± SD | 29.18 ± 2.19 | 29.21 ± 2.06 | 29.01 ± 2.09 |  |
 Range | 26.01–37.45 | 26.28–34.29 | 26.02–34.97 |  |
AL subgroups | Â | Â | Â | 0.464 |
 26.00–28.00 mm | 536 (36.66%) | 123 (34.07%) | 54 (36.00%) |  |
 28.00–30.00 mm | 423 (28.93%) | 118 (32.69%) | 51 (34.00%) |  |
 ≥ 30.00 mm | 503 (34.40%) | 120 (33.24%) | 45 (30.00%) |  |
Flattest K value (D) | 43.30 ± 1.51 | 43.24 ± 1.56 | 43.55 ± 1.55 | 0.107 |
Steepest K value (D) | 44.32 ± 1.61 | 44.29 ± 1.60 | 44.58 ± 1.61 | 0.141 |
ACD (mm) | 3.42 ± 0.34 | 3.43 ± 0.34 | 3.42 ± 0.37 | 0.93 |
LT (mm) | 4.44 ± 0.39 | 4.44 ± 0.40 | 4.38 ± 0.43 | 0.201 |
CD (mm) | 11.75 ± 0.42 | 11.77 ± 0.46 | 11.77 ± 0.40 | 0.609 |
IOL power (D) | 9.28 ± 5.05 | 9.31 ± 4.87 | 9.31 ± 4.41 | 0.941 |
Postop-BCVA (logMAR) | 0.05 ± 0.03 | 0.04 ± 0.03 | 0.03 ± 0.04 | 0.837 |