What structures of the eye are involved in the perception of the visual signal?

The rays from the object penetrate the eye through the cornea and pupil. The pupil circumference may vary depending on the illumination of the subject. The lens focuses the rays on the retina. After passing through the vitreous body, the rays fall on the retina, giving a reduced inverse image. It is perceived by receptors and sent to the brain. In parallel there is information from the muscles that describe the contours of the object when viewed. Comparison of information from muscles and from the eye allows you to get a direct image corresponding to nature, regardless of the angle of view.

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