1. About 8 to 10 % of retinal ganglion cells are bistratified cells. 2. The photoreceptors in the surrounding area " inhibit " the ganglion cell . 3. In 2007, a new role was found for the photoreceptive ganglion cell . 4. There is strong evidence that the retinal ganglion cell theory is untenable. 5. But there is a third kind of sensor in the eye-modified ganglion cells . 6. The ganglion cell axons form the optic nerve after they leave the eye. 7. Like Rizzo's device, Humayun's is designed to be placed by the ganglion cells . 8. The koniocellular laminae receive axons from the small bistratified ganglion cells . 9. Rod bipolar cells do not synapse directly on to ganglion cells . 10. Signals from these photosensitive ganglion cells have at least two other roles in addition.