Author/Authors :
Bagheri, Abbas Ocular Tissue Engineering Research Center - Shahid Beheshti University of Medical Sciences, Tehran, Iran - Ophthalmic Research Center - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Abbasnia, Ehsan Ocular Tissue Engineering Research Center - Shahid Beheshti University of Medical Sciences, Tehran, Iran - Ophthalmic Research Center - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Abrishami, Alireza Department of radiology - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Tavakoli, Mehdi Department of Ophthalmology and Visual Sciences - The University of Alabama at Birmingham - Callahan Eye Hospital - Birmingham - AL, USA
Abstract :
Purpose: To present a case of bilateral Brown syndrome who presented as a unilateral disease and then showed the disease in the fellow eye in an older age.
Methods: A 4‑year‑old girl presented with congenital Brown syndrome of the left eye and underwent a superior oblique weakening procedure in that eye, but then developed Brown syndrome in the right eye which required two more surgeries on the right eye to attain an acceptable alignment.
Results: Her orbital computed tomography scan revealed that the distance between the annulus of Zinn and trochlea (Z‑T distance) was 41.2 mm in both sides, which was comparatively longer than her age‑ and sex‑matched cases. This finding can suggest a possible mechanism of Brown syndrome development in some patients.
Conclusion: Bilateral Brown syndrome can present as a sequential disease, and its radiologic finding may be associated with increased Z‑T distance.
Keywords :
Annulus of Zinn‑trochlea distance , Brown syndrome , Sequential Brown syndrome , Superior oblique weakening
