Amacrine cells

Amacrine cells are located in the inner plexiform layer of the retina and provide 70% of the input to retinal ganglion cells (Bipolar cells are responsible for the other 30%; however, these are regulated by amacrine cells). There are around 40 different types of amacrine cells and like horizontal cells, they work laterally to affect the output from bipolar cells. Each type of amacrine cell connects with a particular bipolar cell and generally has a specific type of neurotransmitter.