Practice Quiz

Ophthalmic Technician

Category - Pupillary Assessment

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A 40-year-old female is diagnosed with optic neuritis in the right eye. What should the pupillary reflexes be to diagnose presence of RAPD on the swinging flash light test?
  1. Paradoxical dilation of the right pupil when light is shone on the right eye with dilation of the left pupil
  2. Paradoxical dilation of the right pupil when light is shone on the right eye with constriction of the left pupil
  3. Constriction of the right pupil with dilation of the left pupil
  4. Constriction of the right pupil and constriction of left pupil
Explanation
Answer: A - Paradoxical dilation of the right pupil when light is shone on the right eye with dilation of the left pupil is noted on the swinging flash light test.

The paradoxical dilation of the right pupil is due to absence of function of the afferent fibers of the pupillary pathway and no light enters the right eye.
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