Figure 1.

The retinal cell types in the adult mouse retina.

The adult mouse retina is comprised of three cellular layers separated by two synaptic layers. Rod and cone photoreceptors reside in the outer nuclear layer (ONL), and form synaptic contacts in the outer plexiform layer (OPL) with horizontal cells and bipolar cells, both of which reside in the inner nuclear layer (INL). In addition, amacrine cells and the cell bodies of Müller glia are found in the INL. Synaptic contacts between bipolar cells, amacrine cells and ganglion cells are present in the inner plexiform layer (IPL) and ganglion cells reside in the innermost cellular layer, the ganglion cell layer.