A<unk>  <unk>  is a type of neuron located near the inner surface (the<unk>  cell layer) of the<unk> of the eye. It receives visual information from photoreceptors via two intermediate neuron types: bipolar cells and<unk> amacrine cells.<unk> amacrine cells, particularly narrow field cells, are important for creating functional subunits within the<unk>  cell layer and making it so that<unk>  cells can observe a small dot moving a small distance.<unk> s collectively transmit image-forming and non-image forming visual information from the<unk> in the form of action potential to several regions in the thalamus, hypothalamus, and mesencephalon, or midbrain.<unk> s vary significantly in terms of their size, connections, and responses to visual stimulation but they all share the defining property of having a long axon that extends into the brain. These axons form the optic nerve, optic chiasm, and optic tract. A small percentage of<unk> s contribute little or nothing to vision, but are themselves photosensitive; their axons form the retinohypothalamic tract and contribute to circadian rhythms and pupillary light reflex, the resizing of the pupil.
Retinal ganglion cell
Sustentacular cell
Pseudounipolar neuron
Granule cell
Magnocellular neurosecretory cell
Corneal endothelium
Iris pigment epithelium
Corneal keratocyte