The amount of light entering the eye is controlled by the ____.

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Detailed Solution

The amount of light entering the eye is controlled by the iris.
The human eye enables us to see this wonderful and colourful world. Different parts of the eyes perform different functions so that we can see objects clearly. The amount of light which enters the eyes is controlled by the iris, which shrinks so the pupil will contract and doesn’t allow light to pass into the eyes and pupil relaxes, and the pupil will expand and allows more light to pass through the eyes.

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