Question

The severing of what nerve causes blindness?

Answer 1

The optic nerve.

Explanation:

While it is relatively difficult to sever the optic nerve due to its position at the back of the orbit. a penetrative injury can cause it to be severed, resulting in blindness.

The severing of the optic nerve prevents signals from the retina being sent to the brain to be interpreted as sight.

This can be caused by penetrative injuries, especially if accompanied by orbital fractures