Cones are connected one-to-one to ganglion cells for high visual acuity, while rods have high convergence to a single ganglion cell for improved low-light vision.
Cones have a one-to-one connection with ganglion cells, providing high visual acuity. On the other hand, rods have high synaptic convergence, meaning many rod photoreceptors ultimately signal to a single retinal ganglion cell, enabling better vision in low light conditions.
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