Retrospective Review of Corneal changes in overnight Orthokeratology
BCVA: Best Corrected Vision Acuity;
BUT: Tear Break up Time;
Dk: Oxygen Permeability Coefficient;
DS: Diopter Sphere;
FRCC: Front Radius of Corneal Curvature;
PD: Pupil Diameter;
PRCC: Posterior Radius of Corneal Curvature;
Cyl: Refractive Cylinder;
SIRS: Surface Irregularity Index;
SEQ: Spherical Equivalents;
UCVA: Uncorrected Vision Acuity
Corneal topography measurement
Statistical analysis methods
Case characteristic in subgroup
K= mean keratometric reading
Figure2E, there were no difference in corneal sensitivity between subgroup 1 and 2, there were no difference between subgroup 3 and 4. there was a difference in subgroup 1/ 2 and subgroup 3 /4. Figure2F, there were difference in BUT in 4 subgroup.
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