Neurology eye (delta) Flashcards Preview

Neurology > Neurology eye (delta) > Flashcards

Flashcards in Neurology eye (delta) Deck (68)
Loading flashcards...
61

Clinical features of NF1

Neurofibromas
Cafe-au-lait spots
Axillary freckling
Ophthalmic features; optic nerve glioma, bilateral lisch nodules, plexiform neurofibromas of eyelid

62

Cause of NF2

Mutation in NF2 gene on chromosome 22

63

Features of NF2

Cataracts
Bilateral vestibular schwannoma

64

What is benign essential blepharospasm?

Bilateral idiopathic condition characterized by involuntary contraction of orbicularis oris muscle
Presents in 6th decade
Diagnosis of exclusion

65

Tx for benign essential blepharospasm

Artificial tears
Botulinum toxin injection

66

What is contained within the cavernous sinus?

ICA and CN6 pass directly through
Lateral walls; CN 3,4 and 5 (V1 and V2)

67

Clinical features of cavernous sinus syndrome?

Ptosis and ophthalmoplegia: compression of CN 3,4,6
Loss of corneal reflex: CN V1
Maxillary sensory loss
Horner's syndrome; internal carotid ocular sympathetics
Proptosis and periorbital swelling

68

What can cause cavernous sinus syndrome?

Infections
Tumours
Cavernous sinus thrombosis
Internal carotid aneurysm
Carotid-cavernous fistula