Theresa just walked outside into bright sunlight and her pupils constricted.What part of the eye is responsible for making this happen?

Name: Theresa just walked outside into bright sunlight and her pupils constricted.What part of the eye is responsible for making this happen?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The iris is responsible for controlling the size of the pupil in response to varying amounts of light. When there is bright sunlight, the iris will cause the pupil to constrict to reduce the amount of light entering the eye.

Theresa Just Walked Outside into Bright Sunlight and Her Pupils