facial assymetries Flashcards
expected palpebral aperture
10-12 mm
UL of palpebral aperture should be?
2 mm below superior limbus
LL of palpebral aperture should be?
1 mm above inferior limbus
OD and OS for exophthalmometry should be
+/- 1.0 mm
exophthalmometry in european americans
15-20 mm
exophthalmometry in african americans
up to 24 mm
exophthalmometry in asians compared to whites
3 mm less
muscles of facial expression, superficial muscles of upper and or lower face
facial palsy and facial nerve
limited to adnexa, one eye sunken, protruding, apparent difference in eye size
assymetry of the palpebral aperture;
TRO and orbital disease
true ptosis, anisocoria
anisocoria/ptosis
how to check muscles of facial expression?
facial nerve (CN 7) 1. whole face --> look at the patient's face: check for any asymmetry
- distinguish upper face from lower face
- is the asymmetry limited to lower face only, or both?
forehead, eyebrows, orbicularis oculi
upper
orbicularis oris, cheeks, orbicularis oculi
lower
does the boundary between uper and lower face vary among people?
yes
Tell pt. to raise his eyebrows as if he is surprised. Dr. checks for symmetry of eyebrows and pattern of wrinkles on the forehead
b. Same instruction but Dr. pushes down on eyebrows: checks for symmetry of strength
c. Tell pt. to close his eyes tightly. Dr. checks for symmetry.
d. Same instructions as #3 but Dr. pries the eyes open: checks for symmetry of resistance
how to check upper division of cn 7