Orbital MRI for diagnosing giant cell arteritis in cases of anterior ischaemic optic neuropathy.
Acute anterior ischaemic optic neuropathy (AION) is a feared ischaemic complication of giant cell arteritis (GCA). However, distinguishing arteritic AION (A-AION) from its non-arteritic counterpart (NA-AION), which accounts for approximately 90% of cases, can be challenging. Rap…