A patient was being operated for fistula in ana under saddle block. On 3rd postoperative day the patient develop photophobia, blurred vision. The most probable cause is:
|B||Subdural frontal hematoma|
|C||Cavernous sinus thrombosis|
|D||Abducent nerve palsy|
Abducent nerve palsy
Saddle block is a kind of spinal block given in sitting position and the patient remains seated till drug get fixed. Due to low CSF pressure cranial nerves get stretched and most commonly involved is 6th nerve due to its longest course.