Visual pathway

The visual pathway handles light. The information from the left and right eye remains seperated throughout the visual pathway.

Reception
Light falls onto the retina in the eye.

Routes
The information leaves the retina through the optic nerves. They cross eachother at the optic chiasm, where information about the left visual field is rerouted to the right and vice versa. Once in the brain, the information splits into two paths:

Geniculostriate system
All P and some M ganglion cells project to this system. Now called the optic tract, the information enters the LGN. From there on, it goes to the striate cortex (part of the visual cortex).

Tectopulvinar system
The remaining M ganglion cells project to this system. They send their information to the Superior collicus (part of the tectum). From there, it goes to the pulvinar.

Geniculostriate
Splits into the dorsal stream, "how", to the PG (parietal lobe), and the ventral stream, "what", to the TE (temporal lobe).

Tectopulvinar
To the parietal lobe and the temporal lobe, containing information about "where".