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Posterior cortical atrophy is a striking clinical syndrome in which a dementing illness begins with visual symptoms. Initially, the problem may seem to be loss of elementary vision, but over time the patient develops features of visual agnosia, topographical difficulty, optic ataxia, simultanagnosia, ocular apraxia (Balint's syndrome), alexia, acalculia,(More)
Four patients each developed a reversible homonymous hemianopia caused by non-ketotic hyperglycemia. In two patients the homonymous hemianopia was the first manifestation of diabetes mellitus type 2. All four patients had abnormal MRI scans; in the three patients who had late follow-up scans the abnormalities resolved completely. In one patient the(More)
OBJECTIVE To evaluate and quantify prospectively visual field changes in patients undergoing temporal lobe resections for intractable epilepsy. BACKGROUND Visual field abnormalities occur after temporal lobe resections for epilepsy; however, we have not encountered published reports using automated static visual field analysis. METHODS Humphrey visual(More)
In eight patients with classical Huntington's chorea hypothalamic function was assessed by the insulin tolerance test, the thyrotrophin releasing hormone test, the gonadotrophin releasing hormone test and water deprivation and the results compared with those of 10 control subjects. All patients ceased to have choreiform movements for approximately 60(More)
BACKGROUND The tonic ocular tilt reaction (OTR) consists of vertical divergence of the eyes (skew deviation), bilateral conjugate ocular torsion, and paradoxical head tilt. The head and superior pole of both eyes are rotated toward the hypotropic eye. OBJECTIVE To describe ocular motility and torsion findings in 5 patients with OTRs that mimicked superior(More)
BACKGROUND Selective amygdalohippocampectomy (SelAH) is increasingly performed in patients with mesial temporal lobe epilepsy and hippocampal sclerosis. To determine whether visual field defects are less pronounced after SelAH than after standard temporal lobectomy (StTL), we retrospectively analyzed postoperative quantitative visual fields after the 2(More)
OBJECTIVE Lumboperitoneal shunting is the bastion of neurosurgical management for idiopathic intracranial hypertension (IIH). However, recent studies document a high failure rate for this procedure. The present study was designed to explore the feasibility of placing ventriculoperitoneal shunts under stereotactic control into patients with IIH as an(More)
OBJECTIVE To determine whether the 24-2 Humphrey visual field (HVF) (Humphrey, San Leandro, CA) strategy provides information comparable to that provided by the 30-2 strategy in patients with optic nerve disease. METHODS In part A of the study, an occluder device was designed to cover the additional outer 22 points tested in the 30-2 strategy of 187 HVFs(More)