Journal of Ophthalmology

Clinical Study

Changes and Diurnal Variation of Visual Quality after Orthokeratology in Myopic Children

Table 4

Effects of orthokeratology on ocular aberrations (, mean ± SD).


Time	Coma	Trefoil	Tetrafoil	Sph	S3	S4	S5	S6	S7	S8

3 mm optical zone
Baseline AM	0.019 ± 0.01	0.044 ± 0.02	0.023 ± 0.01	−0.004 ± 0.01	0.050 ± 0.02	0.028 ± 0.01	0.017 ± 0.01	0.017 ± 0.01	0.013 ± 0.01	0.011 ± 0.01
1 month AM	0.049 ± 0.03	0.077 ± 0.04	0.037 ± 0.02	0.019 ± 0.02	0.099 ± 0.04	0.050 ± 0.02	0.029 ± 0.02	0.025 ± 0.02	0.018 ± 0.01	0.015 ± 0.01
1 month PM	0.052 ± 0.03	0.081 ± 0.05	0.030 ± 0.03	0.023 ± 0.01	0.101 ± 0.06	0.046 ± 0.03	0.027 ± 0.02	0.019 ± 0.01	0.015 ± 0.01	0.013 ± 0.01
P1	<0.001	0.002	0.005	<0.001	<0.001	<0.001	<0.001	0.11	0.081	0.235
P2	0.618	0.665	0.216	0.03	0.799	0.331	0.752	0.233	0.409	0.428

4 mm optical zone
Baseline AM	0.043 ± 0.02	0.081 ± 0.03	0.035 ± 0.02	−0.010 ± 0.02	0.095 ± 0.03	0.047 ± 0.02	0.033 ± 0.01	0.028 ± 0.01	0.022 ± 0.01	0.018 ± 0.01
1 month AM	0.196 ± 0.09	0.136 ± 0.08	0.072 ± 0.03	0.099 ± 0.06	0.256 ± 0.10	0.143 ± 0.06	0.087 ± 0.04	0.060 ± 0.03	0.039 ± 0.03	0.033 ± 0.03
1 month PM	0.210 ± 0.08	0.145 ± 0.08	0.062 ± 0.05	0.108 ± 0.04	0.264 ± 0.10	0.141 ± 0.06	0.083 ± 0.05	0.046 ± 0.02	0.031 ± 0.02	0.026 ± 0.02
P1	<0.001	0.005	<0.001	<0.001	<0.001	<0.001	<0.001	0.001	0.007	0.017
P2	0.158	0.634	0.417	0.14	0.587	0.839	0.672	0.116	0.282	0.329

5 mm optical zone
Baseline AM	0.091 ± 0.05	0.129 ± 0.04	0.059 ± 0.03	−0.019 ± 0.05	0.166 ± 0.05	0.091 ± 0.04	0.064 ± 0.03	0.047 ± 0.03	0.039 ± 0.02	0.032 ± 0.02
1 month AM	0.532 ± 0.26	0.223 ± 0.10	0.120 ± 0.06	0.333 ± 0.16	0.603 ± 0.26	0.393 ± 0.15	0.181 ± 0.09	0.112 ± 0.05	0.082 ± 0.05	0.065 ± 0.04
1 month PM	0.540 ± 0.24	0.222 ± 0.10	0.093 ± 0.07	0.328 ± 0.14	0.602 ± 0.24	0.373 ± 0.14	0.157 ± 0.08	0.095 ± 0.05	0.074 ± 0.04	0.051 ± 0.03
P1	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	0.001	0.002
P2	0.762	0.969	0.181	0.73	0.968	0.224	0.238	0.233	0.536	0.213

Paired t-test. P1: comparison between AM baseline and AM 1 month after orthokeratology; P2: comparison between AM and PM during the same day 1 month after orthokeratology.