查看文章

We read with interest, the report by Bodanapally et al (1) of using diffusion tensor imaging (DTI) in evaluating patients with traumatic optic neuropathy (TON). The authors concluded that decreased axial diffusivity and mean diffusivity in the posterior segment of the optic nerve might serve as a biomarker of axonal damage in patients with TON.

We describe a patient with right homonymous hemianopia who presented 11 years after a severe closed head trauma with a negative conventional magnetic resonance imaging (MRI) and magnetic resonance angiography in whom left optic tract atrophy was documented with DTI. A 59-year-old woman complained of transient visual loss. In 1999, she was involved in a motor vehicle accident with loss of consciousness and associated memory loss. Recently, she reported 2 episodes of transient “tunneling of vision,” each lasting 5 minutes. She was not certain if they were …