Answer :
1) The light enters the cornea, which bends it. 2) The iris's pupil allows light to enter freely. 3) Vitreous humour allows light to pass through. 4) The retina collects light waves and converts them into impulses.
The retina, which lines the back of the eye, is then illuminated by the lens. The light beams' picture is transformed into nerve impulses by the retina. The first visual relay in the brain receives these impulses from the eye via the optic nerve, which is made up of the ganglion cells' axons in the retina.
As a result, we may state that light travels from the cornea to the lens through the front of the eye. The retina's cells take in light and transform it into electrical impulses that are then transmitted to the brain via the optic nerve.
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