Petra looked directly into a very bright light and damaged her retina. The ophthalmologist has told her that she has sustained massive damage to her cones, but for the most part her rods have not been affected. Which of the following aspects of Petra's vision is likely to be deficient?

Question

Quizplus · Accepted Answer

Cones are responsible for colour vision, therefore damage to them would lead to a deficiency in identifying colour. Since rods are not affected, Petra's vision in low illumination (which rods are responsible for), peripheral vision, and depth perception are unlikely to be deficient.

Petra Looked Directly into a Very Bright Light and Damaged