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| before NC | after NC | |
| LC (cm)* | 2.8 ± 1.1 | 3.2 ± 1.6 |
| AC (cm2)* | 0.2 ± 0.1 | 0.2 ± 0.2 |
| NC rate in LC (%) | 1.6 ± 0.2 | |
| NC rate in AC (%) | 1.3 ± 0.6 | |
| COP | ||
| anterior | 1 | 15 |
| posterior | 31 | 17 |
| COP | ||
| symtomatic side | 3 | 31 |
| asymptomatic side | 29 | 1 |
average ± SD, p<0.001
* COP after NC: direction compared with before NC
