Cone photoreceptor density is greatest
A)at the optic disk.
B)in the fovea.
C)about 8 mm from the fovea.

Question

Quizplus · Accepted Answer

Cone photoreceptor density is greatest in the fovea, where there is a high concentration of cones responsible for high acuity vision. The optic disk is a location in the retina where the optic nerve exits and contains no photoreceptors. The location 8 mm from the fovea may have a high density of cones, but it is not specified whether it has the greatest density compared to other areas.

Cone Photoreceptor Density Is Greatest