Document Type
Article (Restricted)
Publication Date
1-1-2013
Abstract
Visual field defects are a conglomerate of patterns of visual impairment derived from diseases affecting the optic nerve as it extends from the globe to the visual cortex. They are complex signs requiring perimetry or visual confrontation for delineation and are associated with diverse aetiologies. This review considers the chiasmatic and post-chiasmatic causes of visual disturbances, with an emphasis on magnetic resonance imaging (MRI) techniques. Newer MRI sequences are considered, such as diffusion-tensor imaging. MRI images are correlated with perimetric findings in order to demonstrate localization of lesions in the visual pathway. This may serve as a valuable reference tool to clinicians and radiologists in the early diagnostic process of differentiating causes of various visual field defects in daily practice. (C) 2013 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.
Keywords
Pituitary-adenomas arachnoid cysts multiple-sclerosis natural-history nerve neuritis stroke meningiomas angiography features
Divisions
fac_med
Publication Title
Clinical Radiology
Volume
68
Issue
10
Additional Information
ISI Document Delivery No.: AA5UV Times Cited: 0 Cited Reference Count: 66 Fadzli, F. Ramli, N. Ramli, N. M. University of Malaya High Impact Research Grant J-20518-73808 The authors would like to thank Mr Azreen Shah Mohd Khalid from the Medical Illustration Department of the Faculty of Medicine, University of Malaya, for his efforts in producing the illustrations in this review. The authors also gratefully acknowledge support from University of Malaya High Impact Research Grant J-20518-73808. W b saunders co ltd London