has part has part has_part characteristic of has modifier retinal ganglion cell neuron degeneration abnormal retina ganglion cell morphology retina ganglion cell degeneration degeneration or loss of ganglion neurons located in the innermost nuclear layer of the retina of that receive visual information from photoreceptors via various intermediate cells such as bipolar cells, amacrine cells, and horizontal cells; axons from these cells form the optic nerve and connect mainly to the lateral geniculate nucleus (LGN) and to the suprachiasmatic nucleus in the brain MP:0008067 MPheno.ontology retinal ganglion cell degeneration abnormal degenerate