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Updated: May 17, 2026
12:06
Optic Nerve Transection: A Model of Adult Neuron Apoptosis in the Central Nervous System
Published on: May 12, 2011
Trigemino-abducens synkinesis after lateral orbitotomy
1Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Ophthalmic Plastic and Reconstructive Surgery
|November 7, 2012
Summary
A patient developed double vision and eye movement issues after orbital surgery. This rare case of trigemino-abducens synkinesis occurred without brain trauma, offering new insights.
Area of Science:
- Ophthalmology
- Neurology
Background:
- Orbital surgery, specifically lateral orbitotomy for dermoid cyst removal, can lead to postoperative complications.
- Ocular motility disorders and cranial nerve palsies are potential sequelae of orbital procedures.
Observation:
- A 30-year-old male presented with esotropia and limited abduction in the right eye one month post-orbitotomy.
- Seven months later, he exhibited synkinetic eye movement (abduction) upon clenching his teeth.
Findings:
- The patient demonstrated trigemino-abducens synkinesis, a rare neurological phenomenon linking the trigeminal nerve (jaw clenching) and the abducens nerve (eye abduction).
- This case is unique as it is the first reported instance of trigemino-abducens synkinesis occurring secondary to orbital surgery without associated brain trauma.
Implications:
- This case expands the understanding of trigemino-abducens synkinesis, suggesting iatrogenic causes beyond central nervous system trauma.
- Highlights the importance of considering aberrant neural connections after orbital interventions.
- Further research into the mechanisms of synkinesis following orbital surgery is warranted.
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