The<unk>  (external<unk>  layer) is a layer of neuronal synapses in the retina of the eye. It consists of a dense network of synapses between dendrites of horizontal cells from the inner nuclear layer, and photoreceptor cell inner segments from the<unk>  nuclear layer. It is much thinner than the inner<unk>  layer, where amacrine cells synapse with retinal ganglion cells. The synapses in the<unk>  are between the rod cell endings or cone cell branched foot plates and horizontal cells. Unlike in most systems, rod and cone cells release neurotransmitters when not receiving a light signal.
Outer plexiform layer
Inner plexiform layer
Layer of rods and cones
Ganglion cell layer
Inner nuclear layer
Episcleral layer
Retinal nerve fiber layer
External lamina