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Rods respond to light. Perfect example of this is the Seven Sisters. Looking directly at it you should see Five, but if you look off to the side a bit... you'll see six. That's because the Rods are not located in the center of the eye.

Cones respond to color. They generally need more light and are located in the center of the eye. When you look in your peripheral vision, you do not see the color as vividly because your Rods are starting to take over the function. However when you look straight ahead you see colors very vividly.

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15y ago
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11y ago

The most basic and crucial function of photoreceptors is to perceive light. This is the job of rods. Color perception is performed by cones.

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13y ago

Rod detect changes in light, cones detect changes in color.

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14y ago

Rods and cones, also known as photoreceptors, are responsible for detecting light. If you had none of either, you would be blind.

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14y ago

rods: detect light

cones: detect colors

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13y ago

Rods help you see in the light and cones help you see in the dark. They are situated in the eyes.

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Q: What is the purpose of rods and cones in the eye?
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