Sixth nerve palsy: Difference between revisions
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==Background== | ==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== | ==Clinical Features== | ||
Revision as of 05:54, 27 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
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