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2006 Series -  April 11, 2006 Lecture 38 of 52  NEXT»

question

A 58-year-old patient with anisocoria has the following pupil measurements:

Light  room    OD:  3.5mm     OS: 5.5mm
Dark room     OD:  4.0mm        OS: 8.0mm

You administer 4% cocaine and no dilation occurs in the right eye.  After 48 hours, you re-test  the patient with 1% hydroxyamphetamine (Paradrine) and the pupil does not dilate. 

The most likely diagnosis is:  

a. Hornerís syndrome: first order neuron
b. Hornerís syndrome: second order neuron
c. Hornerís syndrome: third order neuron
d.  Adieís pupil

For answers to the above, click here on or after April 18, 2006.


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