Table 1.

Differences of Diopter, AL, AL/CR and ave K values between the two eyes in the three groups

	Group 1	Group 2	Group 3	H value	df	P value
Cases	39	31	31		2
Diopter	0.44 ± 0.15	1.44 ± 0.40	4.44 ± 2.51	89.196	2	0.000
AL	0.13 ± 0.16	0.70 ± 0.58	1.68 ± 0.98	69.433	2	0.000
AL/CR	0.02 ± 0.02	0.09 ± 0.07	0.23 ± 0.13	68.096	2	0.000
ave K	-0.01 ± 0.06	0.01 ± 0.07	-0.03 ± 0.09	6.299	2	0.043