Question

Why the rod cell present in our eye

Answer 1

Rod cells are photoreceptor cells in the retina of the eye that can function in less intense light than the other type of visual photoreceptor, cone cells. Rods are usually found concentrated at the outer edges of the retina and are used in peripheral vision. On average, there are approximately 90 million rod cells in the human retina.[1] Rod cells are more sensitive than cone cells and are almost entirely responsible for night vision. However, rods have little role in color vision, which is one of the main reasons why colors are much less apparent in darkness.

Rod cell

Cross section of the retina. Rods are visible at far right.

DetailsLocationRetinaShapeRod-shapedFunctionLow-light photoreceptorNeurotransmitterGlutamatePresynaptic connectionsNonePostsynaptic connectionsBipolar cells and horizontal cells

Answer 2

Rod cells are the light sensitive cells.they helps to give sharpness and colour vision to the image format on retina.