The density of rods:
A) is highest in the optic disk.
B) remains constant throughout the retina.
C) rises rapidly within a short distance of the fovea.
D) is highest in the fovea.

Question

Quizplus · Accepted Answer

The density of rods in the human retina increases as one moves away from the fovea and reaches a peak at a certain distance from it. The fovea itself is densely packed with cones, which are responsible for high-resolution vision and color perception, while rods, which are more sensitive to light and are crucial for peripheral and night vision, are absent in the fovea and increase in density outside of it.

The Density of Rods