A patient presented with vision loss. On radiological investigation, an aneurysm causing damage to the optic chiasma was noted. Which of the following arteries is most likely to be the artery that is causing the damage?

Options

1. Anterior communicating artery
2. Anterior choroidal artery
3. Middle cerebral artery
4. Anterior cerebral artery

Correct Answer

Anterior communicating artery

Explanation

The optic chiasma is closely related to the anterior communicating artery, which connects the two anterior cerebral arteries. Aneurysms of the anterior communicating artery can compress the optic chiasma, leading to visual field defects, typically bitemporal hemianopia.

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