The retina as a tissue is comprised of eight cell types (six neuronal, one
epithelial and one glial). The neuronal cells include the retinal ganglia cells
(GC), amacrine cells (AC), horizontal cells (HC), bipolar cells (BP) and
photoreceptors. The lone epithelial cells type is the pigment epithelium
(RPE); the glial cells are the Müller cells (MC). The ganglion cell layer is
predominantly GC, with some AC; the inner nuclear layer consists of the AC,
MC, BP, and HC; the outer nuclear layer consists of the photoreceptors and
RPE. During development of the retina, the GC axons form the optic nerve,
which terminates in the superior colliculus and lateral geniculate nucleus in
mammals.