title: Disorders of the optic tract, radiation, and occipital lobe.
abstract: Disorders of the optic tract, lateral geniculate nucleus, optic radiation, and occipital lobe - collectively called the retrochiasmal visual pathways - are commonly encountered in neurological practice, and may result from a number of causes. The major visual morbidity of retrochiasmal disease is the homonymous visual field defect, which is found in approximately 8% of stroke patients. A homonymous visual field defect may have profound legal, occupational, and financial consequences for patients, with many patients unable to read, drive, or return to work after sustaining retrochiasmal damage. Some homonymous hemianopias may improve, usually within days of a cerebral infarction, but remain stable after 3 months. Although treatment options are limited to those of the underlying cause, appropriate counseling and low-vision rehabilitation may be helpful.
authors: Departments of Ophthalmology, Neurology, and Neurological Surgery, Neuro-ophthalmology Unit, Emory Eye Center, Emory University School of Medicine, Atlanta, GA 30322, USA.
authors: J Alexander
authors: JA
authors: Fraser
authors: Nancy J
authors: NJ
authors: Newman
authors: Valérie
authors: V
authors: Biousse