Orbit, Eyelids and Lacrimal system 2 Flashcards
1
Q
Most common orbital fracture
A
orbital floor fracture
orbital rim often spared
2
Q
Orbital Floor Fractures
presents with
A
- ecchymosis
- emphysema (air in orbit can increase IOP)
- subconjunctival hemorrhage
- enopthalmosis (sinking of eye)
3
Q
Orbital Floor Fractures Tx immediately if
A
muscle entrapment of oculocaardiact reflex
4
Q
Orbital Floor Fractures
tx early if
A
- doplopia
- hypodlobus
- large fracture
- enopthalmos
5
Q
Pediatric Orbital floor fractures high risk of
A
trap door fractures
6
Q
Pediatric Orbital floor fractures symptoms
A
- n/v
2. pain with EOM
7
Q
Pediatric Orbital floor fractures: white eyed blow out
A
- do not appear to have significant trauma
- kids have cancellous, rubbery bone that can entrap inferior rectus m. or other tissue
- treat with surgery– implants to prevent re-herniation
8
Q
pediatric orbital tumors
A
- Teratoma
- Capillary hemangioma
- dermal cysts
- lymphangioma
- rhabdomyosarcoma
9
Q
Most common malignant pediatric tumor of orbit
A
rhabdomyosarcoma
10
Q
Teratoma
A
- Congenital tumor of 2 or more germinal layers
2. Proptosis
11
Q
Teratoma treatment
A
with subtotal exenteration
removal of all the eye as well as adjoining structures
12
Q
Most common benign tumor of children
A
capillary hemangioma
13
Q
Capillary hemangioma treatment
A
- Monitor vision
- Treat strabismus, amblyopia
- Local or systemic steroids
- Excision
14
Q
Capillary hemangioma appears
A
- Appears at 1-2 wks in age and enlarges for 6-12 months
- Usually decrease after 1 yr
- Appear superficially, red and dimpled
- Appear deep, blue enlarging mass
15
Q
Lymphangioma
A
- Within 1st decade of life
- During infections, lymph or venous structures swell and put pressure on eye
- In conjunctiva, eyelid, orbit, oropharynx or sinus
