ABSTRACT
Fiona Costello This case highlights the importance of distinguishing whether AION is of the artertic versus nonarteritic type for any given patient. Arteritic AION is the most common cause of blindness in patients with giant cell arteritis (GCA), and recognition of this clinical syndrome is critical to prevent subsequent blindness in the fellow eye and avoid other nonophthalmic complications of GCA. Ultimately, the treating physician must rely on details of the history and clinical examination to determine whether empirical
Figure 18.1 Goldmann visual field, right eye, showing dense inferior visual field defect.
