+The **pupil** is the adjustable opening in the center of the [Iris](/wiki/iris) of the eye, appearing black as it absorbs most incoming [Light](/wiki/light). It dynamically controls the amount of light reaching the retina, widening in low light and narrowing in bright conditions.
+## See also
+- [Eye](/wiki/eye)
+- [Vision](/wiki/vision)
+- [Retina](/wiki/retina)
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