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Curr Opin Neurol. 2017 Apr;30(2):200-205. doi: 10.1097/WCO.0000000000000423.

Functional visual loss.

Author information

1
aSave Sight Institute, The University of Sydney bSydney Eye Hospital, Sydney, New South Wales, Australia.

Abstract

PURPOSE OF REVIEW:

Functional visual loss (FVL) is a syndrome in which subjective visual parameters are inconsistent with objective measures. Recent advances in understanding the pathophysiology and management of functional disorders and FVL will be explored.

RECENT FINDINGS:

FVL requires a positive diagnosis of normal function through clinical examination or visual electrophysiology. A substantial proportion of patients have an underlying organic illness that needs to be identified and treated. Recent updates in Diagnostic and Statistical Manual of Mental Disorders-5 reflect the observation that many patients with FVL do not have a recognizable psychological association. A small number of functional neuroimaging studies suggest that there may be a stress-mediated prefrontal suppression of visual awareness. There is limited evidence to guide the treatment of FVL; education and reassurance remain first line, followed by cognitive behavioral therapy and pharmacotherapy for psychiatric comorbidities.

SUMMARY:

FVL remains a poorly studied and understood condition. Recent advances in the understanding and management of functional symptoms more generally may aid in advancing the understanding of this condition.

PMID:
28141741
DOI:
10.1097/WCO.0000000000000423
[Indexed for MEDLINE]

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