The retina contains receptor rods and cones and begins processing visual information.

The retina contains receptor rods and cones and begins processing visual information.

• A. Retina
• B. Sclera
• C. Iris
• D. Cornea

Answer: (A)

The retina is the light-sensitive layer at the back of the eye where rods and cones reside, enabling phototransduction to convert light into neural signals. It also begins processing visual information through retinal circuits involving bipolar, horizontal, and ganglion cells before the signals travel to the brain via the optic nerve. The sclera is the protective outer white layer, the iris controls pupil size, and the cornea is the clear front surface that helps focus light. Since only the retina contains the receptor cells and the initial processing pathways, it matches the description.

The retina is the light-sensitive layer at the back of the eye where rods and cones reside, enabling phototransduction to convert light into neural signals. It also begins processing visual information through retinal circuits involving bipolar, horizontal, and ganglion cells before the signals travel to the brain via the optic nerve. The sclera is the protective outer white layer, the iris controls pupil size, and the cornea is the clear front surface that helps focus light. Since only the retina contains the receptor cells and the initial processing pathways, it matches the description.