Isolated Sudden-Onset Trochlear Nerve Palsy Associated with Mild Novel Coronavirus Disease (COVID-19) Infection

To present a case of sudden isolated unilateral trochlear nerve palsy of new onset associated with a COVID-19 infection without a severe course. A 49-year-old previously healthy man suddenly noticed seeing double while going down the stairs to go out for the first time the day after the completion o...

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Bibliographic Details
Published in:Journal of binocular vision and ocular motility 2023, Vol.73 (1), p.11-14
Main Authors: Mangan, Mehmet Serhat, Acar, Zeynep
Format: Article
Language:English
Subjects:
COVID-19
COVID-19 - complications
diplopia
Diplopia - diagnosis
Diplopia - etiology
Humans
Magnetic Resonance Imaging
Male
Middle Aged
SARS-CoV-2
superior oblique palsy
Trochlear Nerve Diseases - diagnosis
Trochlear nerve palsy
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Summary:To present a case of sudden isolated unilateral trochlear nerve palsy of new onset associated with a COVID-19 infection without a severe course. A 49-year-old previously healthy man suddenly noticed seeing double while going down the stairs to go out for the first time the day after the completion of medical treatment and home isolation for COVID-19. There was no systemic disease or history of trauma. Magnetic resonance imaging of the brain and orbits was normal and the neurology examination revealed no pathology. The acute onset of the diplopia, the small vertical fusion amplitude, and the lack of facial asymmetry supported acquired trochlear nerve palsy. Trochlear nerve palsy has rarely been reported in association with the various types of viral infections. To the best of our knowledge, this is the first case of isolated unilateral trochlear nerve palsy with no additional neurological finding or any radiological finding that is possibly associated with mild SARS-CoV-2 infection.
ISSN:2576-117X
2576-1218
DOI:10.1080/2576117X.2022.2114343