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Flashcards in Untitled spreadsheet - plastics Deck (47):
2

incision 1 cm above upper tarsus

conj, orbic septum, orbital fat, leavtor, muellers, conj

3

origin of orbital bones

neural crest

4

absorption of chromic gut sutures

20 days

5

why is upper lid retraction produced by Grave's disease due to

overreaction of Mullers

6

pin 4 mm above eyelashes

skin orbic, elavtor, tarsus, conj

7

location of valve of hasner

underneath inferior trubinate of nose

8

neck surgery induced ptosis

horner's syndrome

9

organism for chronic canaliculitis

actinomyces

10

jaw winking ptosis with fair levator function

excision of LA and fascia lata sling

11

are medial wall fractures associated with a floor fracture

yes

12

which Le Fort fractures is CSF rhinorrhea commonly seen

Lefort II and III

13

large vascular channel at superior tarssal border

peripheral arterial arcade beneath leavtor aponeurosis on surface of Mueller's. this suggests LA is dehisced.

14

which nerves pass through superior part of SOF

lacrimal, frontal, trochlear

15

which nerves in inferior part of SOF

III, VI, and V.

16

how many fat compartment in upper and lower lid

2 in upper, 3 in upper. Lacrimal gland substitutes for lateral fat

17

most common location for an orbital meningocele

above medial canthus

18

what structures pass through inferior orbital fissure

pterygopalatina ganglion, maxillar nerve, pterygoid nerve, IOV

19

which structures pass through optic foramen

optic nerve, ophthalmic artery, sympathetic fibers

20

thrombocytopenia, strawberry skin nevi and subglottic hemangioma

kasabach-Meritt synrome

21

def of distichiasis

extra row of lashes

22

location of dermoid cysts in orbit in kids

anterior upper termporal oribt

23

6 features of crouzon

proptosis with shallow orbits, blue sclera, strabismus, congenital catarat, optic atrophy, ypertelorism

24

most common location of sebaceous carcinoma

upper eyelid

25

bone that form s lacrimal fossa

frontal

26

bones of medial orbit

SMEL- sphenoid, ethmoid, lacrimal, maxillary

27

bones of lateral wall

zygoma, and sphenoid

28

origin of lacrimal gland

surface ectoderm

29

location of rosenmuller's valve

common canalicultis

30

course of infraorbital nerve

branch of V2, in infraorbital canal and exits orbit about 4 mm below inferior orbital rim

31

characteristic of tripod fractures

pain with mouth openingand chewing

32

bone of optic foramen and optic canal

lesser wing of sphenoid

33

orbital fat in T1 and T2

T1 bright, dark in T2

34

most common intracranial tumor to invade orbit

sphenoid wing meningioma

35

in DCR, what bony structures are removed during osteomy

lacrimal sac fossa and superior nasal wall of nasalacrimal duct removed

36

def of epiblepharon

horizontal fold of skin that overrides lid margin

37

triad of hand schuller christian disease

exophthalmos, lytic leison, DI

38

worse prognosis of histiocytosis X

letterer-Siwe- systemic spread of abnormally proliferating histocytes with rapid death.

39

what can be expressed from canaliculi infected with actinomyces

yellow sulfur granules

40

bones that form floor

maxilliary zygomatic, and palatine

41

what muscles separtes medialf rom central fat compatment in lower eyelid

inferior oblique muscle

42

what is hypertelorism?

increased distance between medial orbital walls

43

what is telecanthus?

increased distance between medial canthi of eyelids due to abnormally long medial canthi tendon.

44

what is Jones 1 test

fluoroscein in conj, after 5 min, cotton tip inserted in inferior tubrinate

45

what is Jones 2 test

fluorscein in puncta, irrigated, if saline in nose, partial obstruction of nasalacimral duct, if no luorsocein, it is in upper drainage system.

46

Lengths of part of lacrimal drainage system

ampula, (2m), canalicluls 98mm), nasolacrimal sac (10 mm), nasal lacrimal duct (12mm).

47

what condition is epicanthus inversus associated with

blepharophimosis

48

what are attachement os medial canthal tendon

superficial head of pre-tarsal and per-septal protions of orbicularis insert into anterior lacrimal cest , deep heads insert into posterior lacrimal crest.