Table 1.

Mean blood flow (MBF) values

	Right eye	Left eye	R/L ratio
Superior area	283.81 (60.40) (AU)	282.63 (46.64) (AU)	1.00 (0.11)
Inferior area	282.01 (54.12) (AU)	275.17 (52.20) (AU)	1.03 (0.13)
S/I ratio	1.01 (0.15)	1.04 (0.11)

AU  =  arbitrary units.

Data are expressed as mean (SD). R/L  =  ratio of the right eye to the left eye. S/I  =  ratio of the superior area to inferior area. No significant difference was found in the MBF between both eyes in both superior (p = 0.627) and inferior (p = 0.351) areas. No significant difference was found in the MBF between superior and inferior areas in each eye (p = 0.765 in right eye and p = 0.316 in left eye).