We explored the diffusion tensor imaging features of the optic radiations in patients with anterior visual pathway compression. The measurements were correlated with the visual tract impairment score. Significant differences in fractional anisotropy (FA), mean diffusivity (MD) and radial diffusivity (RD) were measured in the bilateral optic radiations depending on the visual disturbance. In addition, FA, MD and RD were correlated with the severity of visual field defects in the visual disturbance group. The results demonstrate the anterior visual pathway compression influences visual field defect affecting optic radiations in the brain.
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