Robert C. Sergott

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The pathogenesis of normal-tension glaucoma remains unknown. Because ocular vasospasm has been proposed as a possible mechanism, we investigated ocular vessel flow velocity in normal-tension glaucoma patients at rest and under treatment with a cerebral vasodilator. Ten normal-tension glaucoma patients and nine age- and gender-matched controls had flow(More)
PURPOSE To report the results of scanning laser polarimetry (NFA/GDx; Laser Diagnostic Technologies, San Diego, CA). DESIGN Prospective, consecutive observational case series. PARTICIPANTS Ten consecutive patients with central retinal artery occlusion (CRAO). METHODS Neuro-ophthalmic examination and scanning laser polarimetry of the retinal nerve(More)
We evaluated 37 patients with hemifacial spasm and 16 age-matched control patients with other neurological disorders using magnetic resonance (MR) imaging, MR angiography, and MR tomographic angiography. MR tomographic angiography is a new technique using computer reconstruction of MR angiographic images to create coronal angiotomes that display tissue and(More)
OBJECTIVE The purpose of this study was to determine if orbital and cerebral CT can be used to distinguish normal patients from those with pseudotumor cerebri, and to correlate CT findings with the severity of visual impairment. SUBJECTS AND METHODS Seventeen patients with a clinical diagnosis of pseudotumor cerebri were compared with 20 age- and(More)
PURPOSE The purpose of this study was to evaluate the test-retest reproducibility of measures of blood flow velocities using color Doppler imaging (CDI) in orbital arteries. PATIENTS AND METHODS Measures of peak systolic velocity, end-diastolic velocity, and resistive index were performed in a group of 15 normal tension glaucoma patients and in 15 healthy(More)
PURPOSE beta-Adrenergic blocking drugs lower intraocular pressure. The question of whether these drugs also alter, either directly or indirectly, orbital hemodynamics is potentially of great importance for patients with normal-tension glaucoma who may have some degree of reversible vasospasm. METHODS We compared the effect of selective (betaxolol) and(More)
OBJECTIVE To evaluate the prevalence of cupping in arteritic anterior ischemic optic neuropathy (AAION) and nonarteritic anterior ischemic optic neuropathy (NAION). DESIGN Retrospective, observational case series. PARTICIPANTS Three hundred one patients. METHODS Review of clinical records and color fundus photographs. MAIN OUTCOME MEASURES(More)
Three patients with dural arteriovenous malformations contiguous with the cavernous sinus had marked worsening of their neuro-ophthalmic symptoms. Such clinical deterioration has been attributed traditionally to increased blood flow through the malformations into the superior ophthalmic vein. However, arteriography in all three patients and magnetic(More)
Fifteen patients with clinical presentations compatible with idiopathic inflammatory orbital pseudotumor were examined by CT and MR imaging to determine if MR could add specificity to the CT appearance of this entity. MR was performed on a 1.5 T system, using surface-coil and head-coil techniques. Idiopathic pseudotumor was confirmed in nine patients on the(More)