The optic nerve is a part of the brain.

视觉神经是大脑的一部分。

Light stimulates the optic nerve.

光刺激视神经。

His optic nerve was hurt in an accident.

他的视神经在一次事故中受到损伤。

This is a sign that her optic nerve is functioning.

这是她的视神经开始发挥功能的迹象。

Increased pressure in the eye is linked to optic nerve damage.

眼压的升高与视神经的损害密切相关。