consensual reaction


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con·sen·su·al re·ac·tion

contraction of the pupil of the fellow eye in consensus with the pupil of the illuminated eye.

consensual reaction

contraction of the pupil of one eye when the other retina is stimulated. It is a normal reflex and a test to evaluate the second and third cranial nerves.

consensual reaction

1. An involuntary action.
2. A crossed reflex.