When two people fuse through the fusion dance, or the potara earrings, the newly fused product leans to the characteristics and personalities of the two former subjects, but they do not submit to their control. The only character who ever submitted to control was super Gogeta, who had no choice.
The pupil is a hole located in the centre of the iris of the eye that allows light to strike the retina. It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil.
Dilating the pupil facilitates the view of the internal structures of the eye including the lens, optic nerve, blood vessels and retinal in greater detail. Dilation is a key component of a comprehensive eye examination, as it sometimes leads to the detection and diagnosis of certain eye diseases. The pupil of the eye is similar to a camera aperture that can become bigger or smaller depending on how much light is needed to enter the eye.