Arterial Occlusions to the Eye: From Retinal Emboli to Ocular Ischemic Syndrome.

: Abstract: A loss or lack of blood supply to the eye can result in acute loss of vision. The site of ischemia may be at the level of the retinal arterioles, the central retinal artery, or further back at the ophthalmic and internal carotid artery. Recognizing the symptoms and signs are important to help prevent permanent ischemic and irreversible blindness.

Visual Loss Secondary to Bioccipital Calcifications Associated with Coeliac Disease.

The purpose of this paper was to present a case report of permanent visual loss secondary to occipital lobe calcifications in coeliac disease. A 58-year-old grave digger was referred by his work place occupational health and safety department for vision assessment. His past medical history included coeliac disease (CD) diagnosed 20 years previously, as well as an over 40-year history of poor vision that had not been investigated.

Chronic apraxia of speech and Broca's area.

Background And Purpose: Apraxia of speech (AOS) is an impairment of motor planning and programming of speech articulation and is often considered an important stroke syndrome, localizable to Broca's area. However, an influential study raised doubts on this localization and reported that AOS is attributable to lesions of the anterior insula, based on an association between chronic AOS and anterior insula lesions. We hypothesized that chronic AOS is associated with large lesions (which include the insula) or lesions to Broca's area.

Arrival time correction for dynamic susceptibility contrast MR permeability imaging in stroke patients.

Purpose: To determine if applying an arrival time correction (ATC) to dynamic susceptibility contrast (DSC) based permeability imaging will improve its ability to identify contrast leakage in stroke patients for whom the shape of the measured curve may be very different due to hypoperfusion.

Materials And Methods: A technique described in brain tumor patients was adapted to incorporate a correction for delayed contrast delivery due to perfusion deficits. This technique was applied to the MRIs of 9 stroke patients known to have blood-brain barrier (BBB) disruption on T1 post contrast imaging.

Treatment options for central retinal artery occlusion.

Central retinal artery occlusion (CRAO) is an ocular emergency and is the ocular analogue of cerebral stroke. It results in profound, usually monocular vision loss, and is associated with significant functional morbidity. The risk factors for CRAO are the same atherosclerotic risk factors as for stroke and heart disease.