What is a characteristic sign of Anterior Ischaemic Optic Neuropathy (AION) observed during fundoscopy?

A characteristic sign of Anterior Ischaemic Optic Neuropathy (AION) observed during fundoscopy is the swollen optic disc that appears pale and chalky white. This finding is due to the ischemic damage to the optic nerve head, where the swelling reflects the accumulation of fluid and the resultant inflammation.

In AION, the interruption of blood supply to the optic nerve leads to changes in the appearance of the optic disc. The pallor is indicative of underlying nerve damage, which can occur as part of this condition. The swollen disc is typically observed soon after the onset of visual symptoms, which can include sudden vision loss and alterations in visual acuity. This presentation is crucial for clinicians to recognize as it facilitates timely intervention and management of potential underlying systemic issues that could contribute to the patient's condition.

Other options do not accurately represent the expected findings in AION, making the first choice the correct representation of the associated clinical pathology.