Table 4. Visual acuity of the three groups at each follow-up visit.

Groups	UDVA, baseline	CVA
		Initial lens wearing	1wk	1mo	3mo
Group A	0.84±0.37	0.02±0.04	0.01±0.04	0.02±0.04	0.01±0.04
Group B	0.90±0.40	0.03±0.07	0.03±0.06	0.03±0.06	0.03±0.06
Group C	1.00±0.38	0.04±0.08	0.03±0.07	0.03±0.06	0.02±0.06
H	4.287	8.238	6.393	3.964	4.633
P	0.117	0.016	0.041	0.138	0.099

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; UDVA: Uncorrected distance visual acuity; CVA: Corrected visual acuity with contact lenses; H: Test statistics for Kruskal-Wallis H test.