Opening through which light enters the eye?

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Multiple Choice

Opening through which light enters the eye?

Explanation:
Light entering the eye goes through an opening in the iris called the pupil. The iris can widen or narrow this opening to regulate how much light gets in: it narrows in bright light and widens in dim light. After passing through the pupil, light is focused by the lens onto the retina at the back of the eye, where light detection begins the process of vision. So the opening through which light enters is the pupil.

Light entering the eye goes through an opening in the iris called the pupil. The iris can widen or narrow this opening to regulate how much light gets in: it narrows in bright light and widens in dim light. After passing through the pupil, light is focused by the lens onto the retina at the back of the eye, where light detection begins the process of vision. So the opening through which light enters is the pupil.

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