What are rods and cones?
Rod and cones are special cells that line the retina of the eye. They get their names from their shapes.
Rods are highly sensitive cells located in the outer area of the retina the lining of the back of the eye. They are used in areas of dim light, and are sensitive to light, shape, and movement changes.
Cones are located in the central area of the retina. Cones play a key role in our ability to see colour.
When light falls on thesecells,thechemicals in them are altered, and send signals to the brain that translates these signals into images.
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