Work

Congenital Unilateral Trochlear-Oculomotor Nerve Synkinesis: A Case Report

Year: 2025

Type: article

Abstract: Introduction: Involuntary muscle stimulation by a nerve other than the normal muscle innervation leads to ocular synkinesis. The most common form of ocular synkinesis, which involves the extraocular muscles, occurs between the abducens and oculomotor nerves. Case Presentation: We describe a case of congenital unilateral trochlear-oculomotor synkinesis in a healthy 31-year-old woman, along with a review of the related literature. The patient shows unusual lid retraction when she depresses and adducts her left eye. Additionally, we discuss the proposed mechanisms underlying the pathophysiology, the ophthalmic workup, and suggested management strategies. Conclusion: Given its rarity and potential to cause diagnostic confusion, physicians need to be aware of this condition.

Source: Case Reports in Ophthalmology

DOI: 10.1159/000548547

Authors: Hind M. Alhodaly, Amal Alhemidan

Institution: Riyadh Armed Forces Hospital

Language: English

Topic: Ophthalmology and Eye Disorders

Subfield: Pathology and Forensic Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,030