What structure in the eye contains the photoreceptors?

The structure in the eye that contains the photoreceptors is the retina. The retina is a thin layer of tissue located at the back of the eye, and it plays a crucial role in vision by converting light into neural signals.

Photoreceptors, which include rods and cones, are specialized cells found in the retina that respond to light. Rods are responsible for vision in low-light conditions and are highly sensitive to light, while cones are responsible for color vision and function best in bright light. This differentiation allows for a range of visual functions, making the retina essential for our ability to see in various lighting conditions.

When light enters the eye, it passes through the cornea and lens, which help to focus the light onto the retina. However, it is within the retina where the actual conversion of light into chemical signals occurs, which are then sent to the brain via the optic nerve for interpretation. Thus, the presence of photoreceptors in the retina is fundamental for visual perception, making it the correct answer.