Red-green refers to a pair of opposing retinal processes that are responsible for color vision. These processes work together to perceive and differentiate between red and green colors.
This theory suggests that our perception of color is determined by the activity of three pairs of opposing color processes - red-green, yellow-blue, and white-black.
Color Vision Deficiency (Color Blindness): A condition where individuals have difficulty distinguishing certain colors due to a deficiency or absence of specific cones in their retina.
Cone Cells: Specialized cells in the retina that detect different wavelengths of light and enable us to see colors.