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Revista Cubana de Oftalmología
versão On-line ISSN 1561-3070
Resumo
HERNANDEZ PERUGORRIA, Arianni et al. Duane's syndrome type II with marked upshoot. Rev Cubana Oftalmol [online]. 2018, vol.31, n.3, pp. 0-0. ISSN 1561-3070.
Duane's syndrome is an eye motility disorder characterized by globe retraction and palpebral fissure narrowing with adduction, associated to abduction restriction, adduction restriction or both. Many theories have been put forth about the etiology of Duane's syndrome, but most authors agree that it is the consequence of a congenital alteration of the sixth cranial pair with aberrant innervation of the lateral rectus by the third cranial pair. This is the most common cause of congenital aberrant ocular innervation, and is more frequent in the left eye. Duane's syndrome type I is the most common and type II is the least common. A presentation is provided of two male patients aged 11 and 37 years with a diagnosis of Duane's syndrome type II with 15 degree exotropia on Hirchsberg's scale in the left and right eye, respectively, chin torticollis to the right, adduction limitation with palpebral fissure narrowing, and marked upshoot in relation to the affected eye. It is decided to perform resection of the lateral rectus 8.0 mm from the affected eye plus Y split to improve the marked upshoot. After surgery the patients were on orthotropics without upshoot or torticollis.
Palavras-chave : Duane's syndrome; exotropia; surgical procedures.