11 - Opth - Orbital Disease - Thyroid eye disease + Encephalocele + Idiopathic orbital inflammatory disease (IOID) Flashcards Preview

CP2 > 11 - Opth - Orbital Disease - Thyroid eye disease + Encephalocele + Idiopathic orbital inflammatory disease (IOID) > Flashcards

Flashcards in 11 - Opth - Orbital Disease - Thyroid eye disease + Encephalocele + Idiopathic orbital inflammatory disease (IOID) Deck (10):
1

Ocular manifestations are most common in which thyroid disease

Graves

2

What can happen to the eyelid in Thyroid eye disease

eyelid retraction - upper eyelid retracted, showing sclera above limbus -> can lead to exposure keratopathy
eyelid lag - lid lags and moves jerkily when moving gaze downwards
periorbital oedema - eyelids puffy

3

what rarely happens as a result of thyroid eye disease

optic nerve compression ~5%

4

What else can happen in thyroid eye disease

exopthalmos (1/3rd) permanent in 70%
chemosis of conjunctiva
opthalmoplegia - due to oedema then fibrosis

5

Encephalocele- what is it?

herniation of intracranial contents through congenital defect in orbit

6

Encephalocele - where?
-presentation?

may be anterior(frontal) or posterior (sphenoidal)

pres - swelling, unilateral proptosis without bruit

7

IOID - classed as a what? and why?

pseudotumour - non-neoplastic, non-infectious orbital lesion - involves soft tissue

8

IOID - two usual features

usually middle aged adults and usually unilateral

9

IOID - presentation

acute painful opthalmoplegia, proptosis, redness, periorbital swelling and chemosis

10

IOID - mgmt

my resolve spontaneously
if recurrent - NSAIDs, steroids, cytotxics, immsuppressives, radiotherapy

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