Ischaemic optic neuropathy

Question 1

General presentation of ischaemic optic neuropathy

Answer 1

Sudden onset mococular vision loss and colour blindness

Question 2

Examination of optic neuropathy

Answer 2

RAPD, optic disc swelling, pale optic disc in late phase

Question 3

What is a sudden loss of vision related to ischaemia or vasculature also called

Answer 3

Amaurosis Fugax

Question 4

Desciption of field defects

Answer 4

“like curtain coming down”

Question 5

Differentials of ischaemic optic neuropathy

Answer 5

Atherothombosis, embolus, dissection, anterior ischaemic optic neuropathy, vasculitis, venous disease, hypoperfusion.

Question 6

What is ischaemic optic neuropathy due to

Answer 6

Occlusion of the short posterior cilliary arteries causing damage to optic nerve

Question 7

Treatment of optic neuropathy

Answer 7

Aspirin 300mg