The retina of a cow's eye contains a high density of rods and cones. This allows them to see a wide range of light intensities and colors. They are also able to see in ultraviolet light, which humans cannot see. This ability is helpful for cows because they can use it to find food and avoid predators.
The arrangement of rods and cones in a cow's eye is different than in a human's eye. In a human's eye, the cones are concentrated in the center of the retina, while the rods are located around the periphery. This allows humans to see fine detail in the center of their visual field, but they have poor night vision. In a cow's eye, the rods and cones are more evenly distributed across the retina. This gives them a wider field of view and better night vision, but they do not have as good depth perception as humans.
Overall, the eyes of cows are well-adapted to their environment and lifestyle. They have good night vision, a wide field of view, and the ability to see in ultraviolet light. These adaptations help them to find food, avoid predators, and navigate their surroundings.