What are rods and cones of the retina. What are their functions?
This is neuroscience, not pysch. The rods of your retina are nerves (or maybe nerve endings is more appropriate) that perceive the presence or absence of light. In other words, they see in grayscale. The cones are similar but perceive the color of light. Cones have much less resolution than rods and don’t see very well, but they fill in the color. In your peripheral vision you have only rods, so you cannot see color changes (but this is unnoticeable).
