Treatment of Oculomotor Nerve Palsy with Ptosis and Eye Fixed in Abduction
Complete oculomotor nerve palsy produces a distinctive constellation of findings: the eye is fixed in abduction and infraduction, intorsion is present, and the eyelid is ptotic. This specific presentation calls for a targeted surgical strategy.
When the palsy is complete, the eye is fixed in abduction, infraduction, and intorsion, and the eyelid is ptotic. The presence of ptosis, alongside the abnormal ocular position, defines this subgroup and directly informs the surgical approach.
Management centres on surgery targeting the superior oblique to counteract the characteristic abnormal eye position. Multiple technique options are available and selection depends on individual clinical factors. The complete regimen — including technique selection criteria, procedural sequencing, and all relevant considerations — is available in the full protocol.
References
DOI: 10.1016/j.jaapos.2022.11.017
- When the palsy is complete, the eye is fixed in abduction, infraduction, and intorsion, and the eyelid is ptotic.
- Reducing abduction, hypotropia, and incyclotorsion can be accomplished by Z-myotomy or suture spacer of the superior oblique (SO); complete tenotomy is also effective, but precludes subsequent nasal transposition of the SO.
- Nasal transposition of the SO to a location near the MR insertion provides resistance to progressive abduction over time.
- We perform a nasal tenotomy with reattachment 2 mm superior to the MR insertion.