Table 6. Cylinder degree of three groups at various follow-up visits.

Groups	Naked cylinder degree, initial lens wearing	Residual cylinder degree
		1wk	1mo	3mo	Initial lens wearing
Group A	-0.60±0.12	-0.11±0.23	-0.12±0.25	-0.11±0.22	-0.12±0.23
Group B	-1.24±0.26	-0.13±0.27	-0.13±0.29	-0.14±0.31	-0.17±0.31
Group C	-2.38±0.44	-0.13±0.40	-0.13±0.39	-0.09±0.35	-0.18±0.39
H	320.575	0.635	0.364	0.183	3.268
P	<0.001	0.728	0.834	0.913	0.195

Group A: Cylinder degree range of -0.75 to -0.50 D; Group B: Cylinder degree range of -1.75 to -1.00 D; Group C: Cylinder degree ≤-2.00 D; H: Test statistics for Kruskal-Wallis H test.