Fovea contains: A. Cones only B. Rods only C. Both Rods and Cones D. None of the above
Option A. Fovea contains cones only.The green and red cones are concentrated in the fovea centralis . The "blue" cones have the highest sensitivity and are mostly found outside the fovea, leading to some distinctions in the eye's blue perception. The cones are less sensitive to light than the rods, as shown a typical day-night comparison.