Sixth nerve palsy: Difference between revisions
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==Clinical Features== | ==Clinical Features== | ||
Patients with a CN VI palsy frequently present with | Patients with a CN VI palsy frequently present with '''diplopia''' and '''esotropia'''. They may have a '''head turn''' to help correct their diplopia. | ||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
Revision as of 08:29, 28 August 2015
Background
Palsy of the abducens nerve, CN VI, is the most common ocular nerve palsy. The abducens nerve innervates the ipsilateral lateral rectus muscle, controlling eye abduction. A palsy results in an esotropia of the affected eye due to the unopposed action of the medial rectus muscle.
Clinical Features
Patients with a CN VI palsy frequently present with diplopia and esotropia. They may have a head turn to help correct their diplopia.
Differential Diagnosis
- Giant Cell Arteritis
- Medial Orbital Fracture (with entrapment of the medial rectus muscle)
- ocular Myasthenia Gravis
- Miller-Fisher Syndrome Guillian-Barre Syndrome
- Congenital Esotropia