Research Article
The Effect of Corneal Refractive Power Area Changes on Myopia Progression during Orthokeratology
Table 1
The baseline parameters between the centric group and decentered group (mean ± SD).
| | Groups | Centric position (n = 44) | Decentered position (n = 72) | t | |
| | Age (y) | 10.86 ± 1.84 | 11.39 ± 1.47 | −1.697 | 0.092 | | SR (DS) | −3.27 ± 1.22 | −3.49 ± 1.15 | 0.967 | 0.336 | | Astigmatism (DC) | 0.37 ± 0.43 | 0.36 ± 0.39 | −0.151 | 0.880 | | SER (D) | −3.41 ± 1.31 | −3.64 ± 1.14 | 0.985 | 0.327 | | AL (mm) | 25.14 ± 0.83 | 25.03 ± 0.81 | 0.573 | 0.569 | | Flat-K (D) | 43.02 ± 1.24 | 42.63 ± 1.24 | 1.546 | 0.125 | | Steep-K (D) | 44.22 ± 1.23 | 44.08 ± 2.07 | 0.378 | 0.706 | | ΔK (D) | 1.20 ± 0.44 | 1.30 ± 0.63 | −0.847 | 0.399 |
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Note. SR: spherical refractive power; SER: spherical equivalent refractive power; AL: axial length; flat-K: flat radial refractive power; steep-K: steep radial refractive power; ΔK: the difference between flat-K and steep-K.
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