the eyeball lady that didnt use a mic

Question 1

number of bones in the orbit

Answer 1

7

Question 2

orbital floor

Answer 2

three bones, palatine bone, maxillary and zygomatic

Question 3

what is the weakest part of the orbit?

Answer 3

orbital floor, weakest closest to infraorbital nerve

Question 4

medial wall

Answer 4

sphenoid, maxillary, ethmoid, and lacrimal

Question 5

thinest wall of orbit?

Answer 5

medial wall

Question 6

ethmoid foramen

Answer 6

passage of nerves and vasculature into nose

Question 7

orbital roof

Answer 7

two bones, frontal bone and lesser sphenoid wing

Question 8

lateral wall

Answer 8

thickest bone, greater sphenoid, and zygomatic

Question 9

muscles

Answer 9

6 muscle, but four primary

Question 10

looking up?

Answer 10

superior rectus

Question 11

looking down

Answer 11

inferior rectus

Question 12

torsion

Answer 12

superior and inferior oblique

Question 13

look medial

Answer 13

medial rectus

Question 14

look lateral

Answer 14

lateral rectus

Question 15

innervation

Answer 15

cn3, 4, 2, and 6

Question 16

cn3 innervation

Answer 16

superior rectius and inferior rectus

Question 17

cn4 innervation

Answer 17

superior blique

Question 18

cn6 innervation

Answer 18

lateral rectus

Question 19

cn2 innervation

Answer 19

the eye

Question 20

sensory?

Answer 20

cn5, v1 = nasocilliary, frontal nerve, and lacrimal

v1 = maxillary - infraorbital nerve (cheek numbness), zygomatic nerve

Question 21

oculocardiac reflex

Answer 21

increased pressure on eye leads to bardycardia, arythmias

efferent branch is connect to vagus, hence influence on heart. atropine, glycopyrrolate can help is release doesnt help.

Question 22

orbital fractures

Answer 22

floor and medial wall - most common (thinnest)
the floor leads to cheek numbness due v2 compression

enphthalmos - shrunken eye, incarceratedmuscle, 50% wll fracture = needs surgucal repair

Question 23

eye hurts for 2 days and is swollen

Answer 23

cellulitis!
can open eye - preseptal cellulitis
cant open eye - orbital cellulits

Question 24

infection in sinus

Answer 24

can travel across into orbit leading to medial cellulitis

Question 25

orbital cellulitis

Answer 25

presents with pain, erthematous lid, swelling

eye is appears red, muscle constriction, increased IOP, proptosis

can cause vision loss, pupillary issues

treat with broad spectrum antibiotics, use contrat and find abcess - treat with surgery

Question 26

cavernous sinus thrombosis

Answer 26

bugs can travel through facial veins into cavernous sinus, leads to lots of nerve pulseys. major complication of orbital cellultis. altered meltal status

superior and inferior opthalimic veins are the routes of travel.

Question 27

canthes

Answer 27

corner of eye, medial and lateral

Question 28

eye lid blood supply

Answer 28

marginal arcades and periferal arcades

Question 29

preseptal cellulits

Answer 29

can open eye

Question 30

chalazion

Answer 30

backing up in meibomian glads wthin tarsus casing swelling. not infected!

use warm compression for treatment

Question 31

eyelid trauma

Answer 31

dont want to tear the levator

Question 32

avulsion

Answer 32

full thikness slice! looks like bacon hanging off the orbit. lots of surgery

Question 33

see fat?

Answer 33

check levator

Question 34

anterior structors of eyelid

Answer 34

skin and orbicularis

Question 35

posterior

Answer 35

tarsus and conjunctiva

Question 36

dacryocysilitis

Answer 36

infection of nasal lacrimal sac due to duct obstruction

need bypass surgery

Question 37

double vision onset of pain, eye drop (pointed downward)

Answer 37

the lacrimal gland, has a little tumor in the gland pushing on the eye.

this looks like cn3 paulsy, so maybe think uncus herniation too?