II. Optic

Question 1

Foramen

Answer 1

Optic canal

Question 2

Fiber Type

Answer 2

Special sensory

SSA

Question 3

Function

Answer 3

Retina, vision

Pupillary light reflexes (with CN III)

Question 4

Branches

Answer 4

none

Question 5

Hemianopia (hemianopsia)

Answer 5

is a condition characterized by loss of vision (blindness) in one-half of the visual field of each eye.

Question 6

Lesion of Optic Nerve

Answer 6

Blindness

Question 7

Lesion of the optic chiasma caused by a pituitary tumor

Answer 7

bitemporal (heteronymous) hemianopia = loss of vision in the temporal visual field of both eyes

Question 8

Right perichiasmal lesion such as an aneurysm of the internal carotid artery

Answer 8

blindness in the nasal field of vision of the right eye

Question 9

Lesion of the right optic tract or optic radiation

Answer 9

left homonymous hemianopia, loss of sight in the left half of the visual field of both eyes

Question 10

Papilledema (choked disk)

Answer 10

is an edema of the optic disk or optic nerve, often
resulting from increased intracranial pressure and increased CSF pressure or thrombosis of the central vein of the retina, slowing venous return from the retina.