Optics which are sensitive to different aspects of light. Rod cells are sensitive to the intensity of light over a wide frequency range, thus are responsible for black-and-white vision. Rod cells are not present on the fovea, the area of the retina responsible for central vision, and are not as responsive as cone cells to spatial and temporal changes in light. There are, however, twenty times more rod cells than cone cells in the retina because the rod cells are present across a wider area. Because of their wider distribution, rods are responsible for peripheral vision. In contrast, cone cells are
Retinal precursor cells Wnt11 is localized in the center of the developing retina and is suggested to play a role in precursor cell differentiation. This expression coincides with the fact that committed cells are located in the center of the developing retina while undifferentiated cells are concentrated in the periphery Fz5 expression is implicated in differentiation of retinal precursor cells to a neural fate. Retinal precursor cells Retinal precursor cells are biological cells that differentiate into the various cell types of the retina during development. In the vertebrate, these retinal cells differentiate into seven cell types, including retinal ganglion cells, amacrine cells, bipolar