Chapter 2

Question 1

What CN’s supply parasympathetic to eye?

Answer 1

CN 3 and 7

Question 2

Midbrain, Pons, Medulla

Answer 2

Midbrain: 3,4
Pons: 5,6,7,8
Medulla: 9,10,11,12

Question 3

What CN’s provide parasympathetic innervation to the eye?

Answer 3

CN 3 (miosis and accommodation)
CN 7 (lacrimation)

Question 4

What 2 layers of cornea do not regenerate if injured?

Answer 4

Bowman’s and endothelium

Question 5

Cranial Nerve V1 (NFL)

Answer 5

Nasolacrimal: goes to corna
Frontal: goes to upper eyelid
Lacrimal: goes to lacrimal gland

Question 6

What muscles innervate what cranial nerves?

Answer 6

SO 4
LR 6
All others 3

Question 7

What CN provides sensory innervation to the eye?

Answer 7

CN 5

Question 8

How do CAI’s reduce pressure?

Answer 8

Reducing aqueous production. (drops Trusopt, Azopt),

Pill Diamox, Neptazane and Daranide

Question 9

What CN is responsible for reflex tearing?

Answer 9

CN 7

Question 10

Sympathetic fibers become post ganglionic after synapsing in the …

Answer 10

superior cervical ganglion

Question 11

What 3 things make up the blood/aqueous barrier?

Answer 11

Iris, Schelms, Non pigmented ciliary epithelium

Question 12

CME following cataract surgery is called Irvine-Gass. How do you treat?

Answer 12

Topical ophtlamic steroid and topical NSAID

Question 13

If allergic to penicillin’s also do not give…

Answer 13

Cephalosporins, cefaclor, amoxicillian

Question 14

Dx Horner’s

Answer 14

10% cocaine or 1% apraclonidine

Question 15

If allergic to sulfa drugs don’t give…

Answer 15

Erythomycina and tetracycline

Question 16

For Meibomian gland dysfunctions give…

Answer 16

oral doxycycline 50mg bid

Question 17

Mersa give..

Answer 17

Trimetoprim