Final answer:
The parafovea and perifovea regions of the retina contain three layers of cells, including photoreceptor cells, bipolar cells, and retinal ganglion cells.
Step-by-step explanation:
The number of layers of cells found at the parafovea and perifovea regions of the retina is three.
The retina, located within the neural tunic of the eye, consists of three layers of cells and two synaptic layers in between. The parafovea and perifovea regions of the retina also have three layers of cells. These layers include photoreceptor cells (rods and cones), bipolar cells, and retinal ganglion cells (RGCs).
The parafovea and perifovea regions of the retina provide intermediate visual acuity between the central fovea and the peripheral retina. As one moves away from the fovea, visual acuity decreases due to the convergence of multiple photoreceptors onto a single RGC.