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Case of the week 45 ( March 2012 )
Combined Third and Fourth nerve palsy



25 years old young man complains of the dropped Rt eye lid . He uses the frontalis ms to just expose the pupil . Old photos show that the condition started shortly after birth . Neurologically , he is fine , no history of trauma , no history of general illness .
During Ocular examination findings more than blepharoptosis are discovered .



 See video of this patient

  


The Striking Findings in thid patient are :
1. Paralytic blepharoptosis .
2. Loss of Bell's phenomenon .
2. Right XT and Hypertropia .

The right hypertropia is greater on looking left and on head tilt to the right ( Rt SO palsy ) . The right XT and LPS palsy are remnants signs of regenerated 3rd nerve palsy .

Combined ocular motor palsies are present when eye muscle weakness indicates dysfunction of more than one ocular motor nerve. These may be unilateral or bilateral. They should be distinguished from supranuclear disorders of ocular motility and from diffuse disorders of the muscles or neuromuscular junction  ( Graves ophthalmopathy, myasthenia gravis ) .

When multiple nerves are affected, this is usually a combination of horizontal and vertical deviations . Ptosis is also common, as the third nerve is frequently a component of multiple nerve palsies.


Although surgical correction of the SO has no effect on this paralytic strabismus , my plan for this patient has two sessions , first to do Rt. LR recession and IO myotomy and second to do guarded frontalis sling operation .


  Post operative  


 See video of this patient post operative

  

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