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Intracranial pathology and diplopia


J.C. de Villiers

Abstract

Diplopia, as a common symptom of intracranial pathological processes is defined. Monocular diplopia, the least common variety, is often hysterical in origin but may be G sign of a cortical or peripheral visual pathway disturbance. Muscle paretic diplopia is the clinical entity commonly encountered and has great diagnostic value if one considen that ocular nerves may be involved directly by intracranial pathological processes or in a distant dislocation effect due to raised intracranial pressure. In the latter instance diplopia may have false localizing value. A brief description of the origin, course and relationships of the ocular nerves as well as their actions, is given. The common pathological processes involving these nerves are briefly described. The less common varieties of diplopia: that due to visual field loss and the type produced by failure of convergence are a'so considered.


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eISSN: 2078-5135
print ISSN: 0256-9574