In your visual field, the peripheral area (where the information is processed by cells called rods) is known for best processing what type of information?

Rod cells in the retina process light.

Explanation:

There are two types of cells in the retina that process light. Rod Cells and Cone Cells. Rod cells are longer and contain more photopigments than cone cells. Photopigments absorb light from sources and this results in a chemical reaction. Because of this fact, they can operate better in low illuminated situations and are known for processing light, whereas cone cells are not as sensitive to light as rod cells and are known for processing color information.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.