<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: Ocular hallmark of giant cell aeritis is
Options:
A. Papilloedema
B. CRAO
C. AION
D. CRVO
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is C: AION. Explanation: Answer- C. AIONThe most common ocular manifestation of giant cell aeritis is visual loss, most commonly secondary to anterior ischemicoptic neuropathy (AION) due to occlusion of sho posterior ciliary aerities.Ophthalmic aery involvement can lead to sudden blindness which is the most feared complication of temporal aeritis.<|im_end|>
