Show Summary Details
Page of

Disorders of Higher Visual Function 

Disorders of Higher Visual Function
Disorders of Higher Visual Function

Matthew J. Thurtell

, and Robert L. Tomsak

Page of

PRINTED FROM OXFORD MEDICINE ONLINE ( © Oxford University Press, 2021. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Medicine Online for personal use (for details see Privacy Policy and Legal Notice).

date: 27 February 2021

A disorder of higher visual function should be considered when visual complaints are out of proportion to examination findings. Such disorders can remain undiagnosed until other cognitive deficits develop. In this chapter, we begin by reviewing the various disorders of higher visual function, which include visual agnosias, simultanagnosia, ocular motor apraxia, and optic ataxia. We next discuss practical strategies to detect these disorders. We then discuss common causes of these disorders and their diagnostic evaluation. We focus our discussion on the clinical features and imaging findings in the visual variant of Alzheimer disease, where the parieto-occipital lobes are preferentially affected in the early stages of the disease.

Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.