Wednesday, January 13, 2016

Visual snow: A thalamocortical dysrhythmia of the visual pathway?

Publication date: Available online 11 January 2016 Source:Journal of Clinical Neuroscience Author(s): Jenny L. Lauschke, Gordon T. Plant, Clare L. Fraser In this paper we review the visual snow (VS) characteristics of a case cohort of 32 patients. History of symptoms and associated co-morbidities, ophthalmic examination, previous investigations and the results of intuitive colourimetry were collected and reviewed. VS symptoms follow a stereotypical description and are strongly associated with palinopsia, migraine and tinnitus, but also tremor. The condition is a chronic one and often results in misdiagnosis with psychiatric disorders or malingering. Colour filters, particularly in the yellow-blue colour spectrum, subjectively reduced symptoms of VS. There is neurobiological evidence f…

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