Optic nerves transmit information from the visual field of to the left cerebral hemisphere.

Optic nerve transmit information from the both eyes visual field of the right cerebral hemisphere to the left cerebral hemisphere.

Explanation:

Optic nerve transmit information from the both eyes visual field of the right cerebral hemisphere to the left cerebral hemisphere. The optical nerve is the nerve that transmits visual information from retina to the brain.

Optical nerves is made up of retinal ganglion cell axons glial cells.The image in the eyes is transmitted to the brain along the optic nerve. About 90% of the axons in the optic nerve go to the lateral ganiculate nucleus in the thallamus.

The optic nerves begins from the optic disk which forms from the convergence of ganglion cell fibres(called axons) as they pass out of the eye.      

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)