Table 2.

Comparisons of variables between normal and damaged hemispheres in normal-tension glaucoma (NTG) eyes; and normal hemisphere of NTG eyes and healthy hemisphere of healthy eyes

	NTG eyes, mean (SD)			Healthy eyes, mean (SD)
Variable	Damaged hemisphere, n=43	Normal hemisphere, n=43	P value*	Healthy hemisphere, n=48	P value†
RNFLT, μm‡	69.0 (19.7)	99.7 (22.8)	<0.001	122.8 (20.2)	<0.001
GCCT, μm	76.6 (11.9)	92.7 (14.5)	<0.001	98.8 (6.5)	0.012
RS, dB	25.2 (4.2)	29.3 (1.7)	<0.001	30.0 (1.3)	0.187
TA RBF, μL/min	3.61 (1.68)	5.86 (2.59)	<0.001	8.40 (3.36)	<0.001
TA diameter, μm	76.0 (13.8)	84.2 (13.5)	<0.001	97.1 (13.9)	<0.001
TA average velocity, mm/s	12.8 (4.1)	15.4 (4.7)	0.003	17.1 (5.7)	0.111
TA maximum velocity, mm/s	26.5 (8.7)	31.6 (10.6)	0.007	33.7 (10.7)	0.308
TA minimum velocity, mm/s	5.2 (2.1)	6.7 (2.7)	0.001	7.7 (3.5)	0.109
TV RBF, μL/min	5.61 (2.51)	6.94 (2.83)	0.010	9.28 (4.47)	0.002
TV diameter, μm	112.5 (15.2)	115.1 (18.9)	0.409	120.3 (19.1)	0.168
TV average velocity, mm/s	9.5 (3.7)	10.4 (3.9)	0.184	12.7 (4.6)	0.007

Boldface indicates statistically significant difference.

^*Paired t-tests were used to compare the variables between the normal hemisphere and the hemisphere corresponding to the visual field defect in the same eye with NTG. P<0.05 is considered to be statistically significant.

^†One-way analysis of variance followed by Tukey–Kramer Honestly Significant Difference post-hoc test was used to compare the variables between healthy hemispheres and normal hemispheres of NTG, with p<0.05 considered to be statistically significant.

^‡Measured in superior (46°–135°) and inferior (226°–315°) quadrants.

RNFLT, retinal never fibre layer thickness; GCCT, ganglion cell complex thickness; RS, retinal sensitivity; TA, temporal artery; RBF, retinal blood flow; TV, temporal vein.