Which is the second order neuron in optic pathway?

Rods and Cones are the photo-receptors not neurons Axon of Bipolar cells are neurons of first order. Axons of ganglion cells form the optic nerve, which are second order neurons. 3rd order neurons arise in the Lateral Geniculate Body and terminate in the visual coex Astrocytes are neuroglial cells which provide the suppoive network for the retinal neural cells and are not directly involved in the signal transmission