Which statement indicates that additional teaching about the eye is needed?

The statement regarding the eye creating new retinal cells highlights a misunderstanding about how retinal cells function. Unlike some other cells in the body, retinal cells do not regenerate or produce new cells in significant quantities. The retina is composed of specialized cells, including rods and cones, which are responsible for vision, but once they are damaged, they are not easily replaced. This misunderstanding suggests that further teaching is necessary to clarify the biological processes of the eye and the limited regenerative capabilities of retinal cells.

In contrast, the other statements accurately express established knowledge about ocular anatomy and function. The macula's role in central vision, the retinal artery's function in supplying oxygen and nutrients, and the role of cones in color vision are all correct representations of eye physiology, indicating that the individual understands these concepts well.