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The state of pupillary contraction is known as

  1. mydriasis

  2. miosis

  3. pupillary dilation

  4. iris constriction

The correct answer is: miosis

The state of pupillary contraction is known as miosis. Miosis refers to the constriction or shrinking of the pupil size. This can occur in response to bright light, when the parasympathetic nervous system is activated. The other options are incorrect: A. Mydriasis refers to pupillary dilation or the enlargement of the pupil. C. Pupillary dilation is the widening of the pupil, the opposite of miosis. D. Iris constriction is not a specific term related to the size of the pupil, so it is not the correct answer in this context.