Absent optic chiasm presenting with horizontal nystagmus

Document Type

Journal Article

Publication Date

5-1-2010

Journal

Journal of Pediatric Ophthalmology and Strabismus

Volume

47

Issue

3

DOI

10.3928/01913913-20090818-08

Abstract

A female infant with horizontal nystagmus and normal ophthalmic examination had isolated absence of the optic chiasm on magnetic resonance imaging. Eye movements were recorded on video and reviewed. Horizontal nystagmus without see-saw nystagmus was observed. Visual evoked potential showed inter-hemispheric asymmetry compatible with the absence of crossing chiasmal fibers. Systemic abnormalities in this patient included cleft lip, preauricular skin tags, broad thumbs, and an anteriorly positioned anus, suggestive of Townes - Brock syndrome. Copyright © SLACK Incorporated.

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