Ponce de León SEF, Rodríguez CL, Tovilla CJL, Soto ANV, Quiroz GMÁ

Language: Spanish
References: 9
Page: 281-283
PDF size: 79.42 Kb.

ABSTRACT

Purpose: To determine the association between muscle enlargement and diplopia in patients with thyroid associated orbitopathy and the relation between optic nerve rectification and muscle enlargement in the orbitary apex in patients with optic neuropathy. To describe the morphology of extraocular muscle enlargement.
Design: Observational, descriptive and transversal.
Methods: Patients previously diagnosed as having thyroid associated orbitopathy had a complete ophthalmological evaluation and computed tomography of the orbit.
Results: From 64 patients, we found muscle enlargement in 43 patients (67.1%), 7 with tendon involvement, diplopia was present in 10 of them, 90% was associated to muscle enlargement; of those with diplopia 33% had tendon involvement. Morphology of the enlargement was fusiform (20%) or cylindrical (7.8%). Optic neuropathy was diagnosed in 15 patients, all of them had nerve rectification and muscle enlargement in the orbitary apex.
Conclusions: There is an association between muscle enlargement with tendon involvement and diplopia, however, it can be present even without involvement of tendon. Optic neuropathy is associated with nerve rectification and muscle enlargement in the orbitary apex.

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