Diplopia as the primary presentation of foodborne botulism.

Document Type

Conference Proceeding

Publication Date



This conference paper is published in Oman Journal of Ophthamology.

Volume 5, Issue 2, June 2012, Pages 109-111.

The published version is available at DOI: 10.4103/0974-620X.99375. © 2012 Khakshoor H, et al.


Foodborne botulism is a serious condition caused by Clostridium botulinum neurotoxin. Clinically, botulism presents as bilateral cranial nerve neuropathy and descending paralysis. We report a unique presentation of botulism to remind clinicians of this potentially fatal condition. In this observational case report initial evaluation showed only esodeviation. This progressed to unilateral cranial nerve six (CN VI) paresis along with systemic signs. Clinical diagnosis was made based on in-depth history and concurrent symptoms in three other patients. Foodborne botulism presenting as diplopia and unilateral motility deficits is rare and can represent a diagnostic and therapeutic challenge to the ophthalmologist.

PubMed ID