If you find the material on this website useful, you will find that the two books ACES for PACES and KEYS to SUCCESS in Medicine complement the material on these sites and will enhance your studying and revision

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ACES for PACES

Medical Revision

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Web ydr.org.uk acesforpaces.com medicalrevision.org

BOF: 30

A 67 year old male presents with a history of transient loss of vision in one eye .

Which of the following blood vessels is likely to be involved in the pathogenesis of this condition?

a)   External carotid artery

b)   Internal carotid artery

c)    Middle meningeal artery

d)   Posterior communicating artery

e)   Vertebral artery

Answer: b)

The ophthalmic artery is a branch of the internal carotid artery. Within the orbit it supplies the extraocular muscles, the lacrimal gland and the eye through the central retinal artery and the posterior ciliary arteries

Amaurosis fugax

ü  Transient and painless loss of vision in one eye

ü  Indicates   transient retinal ischaemia

ü  Associated with stenosis of the ipsilateral carotid artery or emboli (cardiac and aortic)

Revision Tip

Revise transient ischaemic attack KEYS to SUCCESS in Medicine page 432-435

 

 

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