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What are rods and cons and what part do they play in vision?

April 26, 2017cons play rods vision

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What are rods and cons and what part do they play in vision?

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At the back of the retina is a layer of light-sensitive receptor cells—120 millions rods and 6 million cones. Rods look like slender cylinders and allow us to detect color and fine detail in adequate light. Cones look shorter and more rounded and help us see in dim light.