Simultaneous Changes in Astigmatism with Noncycloplegia Refraction and Ocular Biometry in Chinese Primary Schoolchildren
Table 5
Comparison of ocular biometry among the three astigmatism change subgroups.
Ocular parameter
Astigmatism subgroups
F
value
Increase
Decrease
No change
Baseline AL (mm)
23.33 ± 0.98
22.89 ± 0.84
23.06 ± 0.75
74.562
<0.001
AL change (mm)
0.68 ± 0.41
0.56 ± 0.36
0.53 ± 0.33
16.466
<0.001
Baseline AL/CRC ratio
2.99 ± 0.08
2.94 ± 0.08
2.93 ± 0.08
45.005
<0.001
AL/CRC ratio change
0.08 ± 0.06
0.07 ± 0.04
0.07 ± 0.04
9.312
<0.001
Baseline SER (D)
−0.63 ± 1.40
−0.07 ± 1.04
−0.01 ± 0.74
39.142
<0.001
SER change (D)
−0.86 ± 1.15
−0.31 ± 0.86
−0.39 ± 0.77
33.222
<0.001
AL, axial length; CRC, corneal radius of curvature; SER, spherical equivalent refraction; D, diopters; values are means ± standard deviations. Compared to the decrease subgroup, ;#compared to the no-change group, .
