The size of the pupil in the human eye is controlled by the iris, which is a ring of muscle that can expand or contract to adjust the size of the pupil.
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When exposed to a bright light, the pupil of the human eye will contract. This action allows less light to come in contact with the lens.
The iris controls the amount of light that is entering the pupil. When its dark out, the sphincter muscles on the iris ease to dilate the pupil, but when its light out, the sphincter muscles contract to constrict the opening of the pupil.
The iris, which is the colored part of the eye, regulates the amount of light that goes into the eye by controlling the size of the pupil. The muscles in the iris can expand or contract the pupil in response to changes in light intensity.
Yes, you can see your pupil get bigger (dilate) and smaller (contract) in response to changes in lighting conditions. The pupil dilates to allow more light into the eye in dim environments and contracts to restrict the amount of light entering the eye in bright environments.
The pupil is the black center part of the eye.
The pupil is an opening into the center of the eyeball, where the retina (visual receptor layer) is located.The pupil is located in the front center of the eyeball, and its size (aperture) is controlled by the iris or colored part of the eye. The pupil is just behind the cornea, or lens, that focuses light on the interior surface of the eye (the retina).
pour white paint in your eye
The iris controls the amount of light passing into the eye by adjusting the size of the pupil. In bright light, the iris contracts to make the pupil smaller, and in dim light, it dilates to make the pupil larger.
When the eye is stimulated by bright light, the circular muscle of the iris contracts, decreasing the size of the pupil.
No