Question

Describe the formation of image on the Retina

Answer 1

The human eye contains a biconvex lens that performs two important functions – refraction of light and focusing of images to the retina. The lens and retina are crucial structures of the human visual system that work hand-in-hand to execute the image forming process.

When image is inverted, the superior half portion of the visual field of each eye undergoes a process of projection towards the inferior half portion of the retina. Also, the reversed image produced by the lens causes the temporal half portion of an eye's visual field to be projected on half of the nasal area of the retina. These relationships between the retinal areas and the visual field help health professionals describe visual field defects in the neuroscience point-of-view.

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Answer 2

$\color{}{Because light rays diverge in all directions from their source, the set of rays from each point in space that reach the pupil must be focused. Theformation of focused images on the photoreceptors of the retina depends on the refraction (bending) of light by the cornea and the lens}$