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from Wikipedia, the free encyclopedia

Pupillary reflex

In medicine, the pupillary reflex or pupillary light reflex, is the reduction of pupil size in response to light.

It is a normal response and dependent on the function of the optic nerves and oculomotor nerves.

Note:   The above text is excerpted from the Wikipedia article "Pupillary reflex", which has been released under the GNU Free Documentation License.
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October 9, 2015

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updated 12:56 pm ET