What part of vision is lost with an aneurysm of the right posterior cerebral artery?

An aneurysm of the right posterior cerebral artery can lead to visual field deficits, specifically causing homonymous hemianopia. This condition results in the loss of vision in the left visual field of both eyes, as the right posterior cerebral artery supplies areas of the brain responsible for processing visual information from the left side of the visual field. Additionally, it may affect other visual processing functions depending on the extent of the aneurysm and any resulting complications.