Which retinal cells are sensitive to color and enable color vision in well-lit conditions?

Which retinal cells are sensitive to color and enable color vision in well-lit conditions?

• A. Rods
• B. Cones
• C. Ganglion Cells
• D. Bipolar Cells

Answer: (B)

Cones are the retinal cells responsible for color vision in well-lit conditions. They contain photopigments that are sensitive to different wavelengths of light, grouped into several types (roughly corresponding to red, green, and blue). This lets you distinguish colors when there’s enough light and provides high visual acuity due to their concentrated, small receptive fields. In bright light, rods saturate and can’t convey color information, so color vision relies on cones. Bipolar and ganglion cells pass along and process these signals, and some color processing occurs downstream, but the actual color sensitivity comes from the cone photoreceptors.

Cones are the retinal cells responsible for color vision in well-lit conditions. They contain photopigments that are sensitive to different wavelengths of light, grouped into several types (roughly corresponding to red, green, and blue). This lets you distinguish colors when there’s enough light and provides high visual acuity due to their concentrated, small receptive fields. In bright light, rods saturate and can’t convey color information, so color vision relies on cones. Bipolar and ganglion cells pass along and process these signals, and some color processing occurs downstream, but the actual color sensitivity comes from the cone photoreceptors.