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Ophtho > Plastics > Flashcards

Plastics Flashcards

1
Q

What r findings of blepharophimosis?

A

Ptosis
Epicanthus inversus
Telecanthus

Autos dominant

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2
Q

Blepharophimosis consists of what findings?

What systemic issue is associated?

A

Blepbarophimosis
Ptosis
Telecanthus
Epicanthus inversus

Premature ovarian failure

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3
Q

How far behind globe does ophth art enter optic nerve?

A

13 mm

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4
Q

Volume of orbit

Other dimensions?

A

30cc
40mm wide
35mm tall
45 mm deep

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5
Q

What goes thru sup orb fis

A

CN 3, 4, V1
Sup oph vein
Sympathetic to iris dilator

(NOT V2 which goes thru foremen rotundum)

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6
Q 
Where do sinuses drain?
Frontal
Ethmoid
Sphenoid
Maxillary
A

Ethmoid- superior
Sphenoid- spheno-ethmoid recess
Maxillary and frontal- middle
NasoLacrimal - inferior

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7
Q

Innervation of lacrimal gland?

A

Cn5 sensory
Cn7 secretomotor
Sympathetic - sup cerv gang

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8
Q

Describe medial canthal attachments

A

Anterior limb

  • passes in front of lac sac
  • attaches to frontal process of maxillary bone and ant lacrimal crest

Posterior limb

  • attached posterior lac crest
  • goes behind lac sac
  • function = apposition to globe
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9
Q

Vascular supply to upper and lower lids

A

Upper
-INternal carotid to ophthalmic art to superior marginal arcade

Lower
-EXTErnal carotid to facial art to angular art to inferior marginal arcade (6-8mm medial to medial can thus and posterior to orbicularis, 5mm anterior to lacrimal sac)

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10
Q

If u find skin Capillary hemangioma, what test should u order?

A

Bleeding time, clotting studies

Kassabach-Merritt assoc w consumptive coagulopathy

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11
Q

Orbital roof bones

A

Frontal

Lesser wing sphenoid

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12
Q

Orbital floor bones

A

Maxillary
Zygomatic
Palatine

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13
Q

Lateral wall bones

A

Zygomatic

Greater wing sphenoid

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14
Q

Medial wall bones

A

Sphenoid
Max
Ethmoid
Lacrimal

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Ophtho (9 decks)

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