Station eight
(allowed 5 minutes)
The following electroretinograms (ERG) belongs to a patient who has poor vision in the left eye:


a. What structures (see ERG of the right eye) are responsible for:
 i) the a-wave
ii) the b-wave?
b. Suggest a common cause for the poor vision in the left eye
    which would also account for the left ERG appearance.




Go to station 1
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