Influence of Overnight Orthokeratology Lens Treatment Zone Decentration on Myopia Progression

Table 1

Difference of biological parameters and lens between OLD eyes and OLC eyes.

Parameter (mean ± SD)	OLD eye (n = 30)	OLC eye (n = 30)	p value
Spherical equivalent refractive error (D)	−2.58 ± 1.15	−2.53 ± 1.16	0.60
Spherical refractive error (DS)	−2.39 ± 1.05	−2.32 ± 1.06	0.43
Regular astigmatism (DC)	−0.44 ± 0.52	−0.50 ± 0.50	0.35
Equivalent e value	0.61 ± 0.08	0.63 ± 0.10	0.15
Steep K (D)	43.60 ± 1.42	43.61 ± 1.65	0.96
Flat K (D)	42.78 ± 1.33	42.86 ± 1.56	0.39
Corneal toricity (D)	0.86 ± 0.53	0.84 ± 0.54	0.80
Lens toricity (D)	−0.17 ± 0.38	−0.12 ± 0.36	0.37
Lens diameter (mm)	10.59 ± 0.19	10.61 ± 0.17	0.18