Pupils and Brain

  1. 0
    I thought I had this straight, then I listened to a lecture today and feel confused again. When a patient presents with a left hemorrhagic stroke will the pupillary dilatation be on the contralateral side or the ipsilateral side?

    I thought the pupillary response would be on the same side (ipsilateral) as the injury, is this not correct?

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  2. 2 Comments...

  3. 0
    same side
  4. 0
    Depends on the location of the hemorrhage and the size. The pupils could be completely equal or unequal. Remember that Cranial Nerve 3 controls pupil dilation so follow the nerve path. Also, increased ICP will affect pupil dilation by compressing the nerve pathway.


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