Table 2:

DTI parameter data^{^a} of patients with RP and controls

	Patients (n = 38)	Controls (n = 35)	t Value	P Value
FA
R	0.442 ± 0.077	0.572 ± 0.046	−8.840	.000^{^b}
L	0.447 ± 0.067	0.581 ± 0.044	−10.083	.000^{^b}
ADC (×10⁻³mm²s⁻¹)
R	1.367 ± 0.250	1.099 ± 0.166	5.417	.000^{^b}
L	1.343 ± 0.218	1.068 ± 0.122	6.667	.000^{^b}
λ// (×10⁻³mm²s⁻¹)
R	5.548 ± 0.288	5.361 ± 0.231	3.030	.003^{^b}
L	5.521 ± 0.250	5.333 ± 0.191	3.609	.001^{^b}
λ⊥ (×10⁻³mm²s⁻¹)
R	4.526 ± 0.249	4.218 ± 0.146	6.511	.000^{^b}
L	4.503 ± 0.213	4.187 ± 0.106	8.041	.000^{^b}

Note:—R indicates right eye; L, left eye.
↵a Values are mean ± SD.
↵b Significant difference between patient nerves and control nerves as determined by using an independent-samples t test.