Giant Cell Arteritis
Fundus photographs of two right eyes during the early stages of AION: (a) with non-arteritic AION and (b) with arteritic AION.

a. Shows typically seen optic disc edema and a splinter hemorrhage
at the optic disc margin in non-arteritic AION. (Reproduced from Hayreh
SS: Acute ischemic disorders of the optic nerve: Pathogenesis,
Clinical Manifestations and Management. Ophthalmol Clin N Am
1996;9:407-42.)

b. Shows typical chalky white optic disc edema.
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