Table 2.

Frequency of the intensity of redness in patients' eyes in both groups.

Eye	Step	Redness	Experimental	Control	Sig.
Right	Before study	Normal	9	6	0.165
		Severe	21	21
		More severe	0	3
	After study	Without redness	13	0	0.001
		Low	13	1
		Normal	3	15
		Severe	1	14
Left	Before study	Normal	10	5	0.111
		Severe	20	22
		More severe	0	3
	After study	Without redness	15	0	0.001
		Low	12	2
		Normal	3	15
		Severe	0	13