In the retina, receives images that have passed through the lens of the eye?

• A. Optic disk (papilla)
• B. Pupil
• C. Lens
• D. Rods and cones

Answer: (D)

Light is focused by the lens onto the retina, and the retina’s light-detecting cells—the rods and cones—receive that image and convert it into electrical signals for the brain. The optic disk is where the optic nerve exits the retina and contains no photoreceptors, so it can’t receive light as an image. The pupil is an opening that regulates how much light enters, not a retina structure. The lens is part of the focusing system in front of the retina, not inside it. Therefore, the structures that actually receive the image on the retina are the rods and cones.