We used 3-Tesla anatomical MRI, DTI, optical coherence tomography, and perimetry to assess structural and functional changes in the eye and brain in glaucoma patients across disease stages. Both optic nerve and optic chiasm volumes were found to decrease from early to advanced staged glaucoma, and were associated with inner retinal thinning and visual field functional loss. Fractional anisotropy, mean diffusivity, and radial diffusivity in optic radiation were significantly different from early to advanced staged patients, but not when comparing control to early disease states. These results suggest anatomical MRI and DTI may be useful in monitoring glaucomatous brain damages non-invasively across stages.
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