Explanation:The inner coat of the eyeball is called the RETINA. it contains the actual light receptors , the rods and the cones, and thus retina functions in the same way as the film of a camera does.Retina contains THREE layers of cells from inside to outside - ganglion cells, bipolar cells and photoreceptor cells. There are TWO types of photoreceptor cells ,namely rods and cones. these cells contain the light sensitive proteins called the photopigments.The retina consists of pigment epithelium(nonvisual PORTION) and a neural epithelium(visual portion).Retina contains blind spot, yellow spot (macula lutea) and FOVEA.Fovea is the point were the visual acuity (resolution) is highest and the vision is sharpest as fovea contains only cones.Retina is main area were light coming from object is perceived and transformed into electrical signals which reaches the visual cortex of brain through optic nerve.Image formed on the retina is recognised based on earlier memory and experience.