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Case of the week 48 ( April 2012 )
Duane Syndrome Type I


the mother of this girl complains of the inward deviation of her daughter's eyes which had been noticed since birth.
she asked for surgery to correct this
 


Video of this patient


Aisha Elghadi : The pat. has restriction on abd. , narrowing of palpepral fissure on add. LE , this IS duane syndrome , type one , LE , there is no up or down shoot , on primary position there is mild esotropia , so better to not touch the pat. ,or do mild recessionn MR of the LE .

I definitely agree with Dr Aisha : This is an example of Duane syndrome type I. There is limited abduction in the left eye, and narrowing of the left palpebral fissure on Rt gaze. The girl assumes very minimal left face turn and very  minimal right gaze to achieve aligned eyes presumably with fusion.
In a case like this, it is always necessary to rule out a left sixth nerve palsy since there is limited abduction and left face turn but the narrowing of the left palpebral fissure with enophthalmos helps confirm Duane. This would not occur in a sixth nerve palsy.

I think this patient doesn't fulfill any of the indications of surgical interference in Duane syndrome which are :
* tropia in the primary position
* unacceptable face turn
* disfiguring narrowing
* up/down shooting

However , what bothers the patient is the esotropia that appears on looking left because of the limited extrusion of the Lt eye , this could be treated surgically by faden operation for the Rt MR ( the sound eye ) , this will limit the extrusion of the Rt eye on looking left , I adopt this surgery many times before and it works excellent .


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