Question:
Which of the following statements are correct?
1. Anterior ischemic optic neuropathies are considered the equivalent of a “stroke of the optic nerve”.
2. The causes and mechanisms of anterior ischemic optic neuropathies and stroke are different.
3. The workup of a patient with an ischemic optic neuropathy is not the same as that for patients with retinal or cerebral infarction.
4. The clinician’s primary role in ischemic optic neuropathies is to exclude giant cell arteritis, control vascular risk factors, treat anemia, and prevent hypotension (e.g., in the setting of dialysis).
5. Anterior ischemic optic neuropathies are not associated with ipsilateral internal carotid artery stenosis and embolic AION is extremely rare.
6. Medications, such as amiodarone, may induce an optic neuropathy often indistinguishable from AION.
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