The rods and cones are two types of photoreceptors in the human retina. The retina is a tissue lining inside of the eye that absorbs light, processes images, and sends visual information to the brain. There are millions of receptor cells in the retina that control the sensitivity to light. The rods and cones are two types of receptors that are found in the retina. They both play an important significant to the luminosity humans use to see. When light is passed through the eye, rods and cones are used to determine what you see around you. Rods and cones are named for their particular shape inside of the retina. According to Weiten (2008), “Rods outnumber cones by a huge margin, as humans have 100-125 million rods, but only 5-6.4 million cones
