Table.

Average DTI Parameters for Visual Pathways (± Standard Deviation Along Each Fiber)

	Optic tract			Optic Radiation			Foveal Fibers			Parafoveal Fibers			Occipito-callosal Fibers
	FA	AD	RD	FA	AD	RD	FA	AD	RD	FA	AD	RD	FA	AD	RD
Patient 1
Before treatment	0.328 ±0.034	1.685 ±0.027	0.987 ±0.46	0.394 ±0.050	2.035 ±0.095	1.073 ±0.099	0.372 ±0.063	1.944 ±0.093	1.074 ±0.130	0.398 ±0.056	2.055 ±0.116	1.069 ±0.098	0.435 ±0.092	2.083 ±0.181	1.006 ±0.173
After treatment	0.391 ±0.03	1.651 ±0.046	0.860 ±0.46	0.376 ±0.047	2.018 ±0.132	1.100 ±0.077	0.380 ±0.054	1.948 ±0.117	1.066 ±0.085	0.374 ±0.048	2.033 ±0.141	1.109 ±0.078	0.466 ±0.134	2.070 ±0.210	0.954 ±0.249
Patient 2
Before treatment	0.365 ±0.051	1.526 ±0.082	0.848 ±0.089	0.388 ±0.070	2.119 ±0.180	1.119 ±0.101	0.386 ±0.057	2.124 ±0.147	1.122 ±0.115	0.385 ±0.071	2.118 ±0.197	1.125 ±0.093	0.382 ±0.110	2.087 ±0.192	1.125 ±0.179
After treatment	0.389 ±0.067	1.480 ±0.137	0.792 ±0.162	0.401 ±0.058	2.103 ±0.123	1.086 ±0.112	0.371 ±0.086	2.092 ±0.160	1.145 ±0.141	0.377 ±0.065	2.143 ±0.164	1.157 ±0.120	0.362 ±0.117	2.099 ±0.247	1.198 ±0.250
Patient 3
Before treatment	0.343 ±0.04	1.405 ±0.071	0.800 ±0.058	0.402 ±0.044	1.931 ±0.115	1.010 ±0.095	0.342 ±0.074	1.944 ±0.112	1.131 ±0.106	0.388 ±0.053	1.828 ±0.117	0.995 ±0.063	0.345 ±0.178	1.905 ±0.221	1.118 ±0.301
After treatment	0.260 ±0.042	1.556 ±0.062	1.031 ±0.096	0.431 ±0.049	2.050 ±0.135	1.000 ±0.077	0.451 ±0.082	1.990 ±0.149	0.939 ±0.111	0.433 ±0.050	2.029 ±0.115	0.989 ±0.086	0.470 ±0.121	1.985 ±0.206	0.904 ±0.203
Control (SD among controls)	0.355 (0.026)	1.631 (0.150)	0.917 (0.094)	0.407 (0.036)	1.985 (0.101)	1.018 (0.063)	0.411 (0.032)	2.009 (0.103)	1.024 (0.072)	0.412 (0.042)	2.004 (0.106)	1.020 (0.071)	0.495 (0.020)	2.018 (0.061)	0.865 (0.052)
Mann-Whitney–derived P value for pretreatment comparison	0.559	0.359	0.559	0.793	0.487	0.254	0.048a	0.84	0.07	0.536	0.84	0.448	0.002b	0.875	0.002b
Mann-Whitney–derived P value for post-treatment comparison	0.712	0.359	0.793	0.875	0.138	0.303	0.734	0.945	0.536	0.448	0.295	0.233	0.014a	0.487	0.033a

Diffusion parameters of each fiber for patients and controls. Averages and standard deviations along fibers are included for each patient and controls. P values were derived through the Mann–Whitney test comparing patients and controls.

^a P < 0.05.

^b P < 0.01.