25th December 2023

Visual aspects of stroke

Visual impairment is a common consequence of stroke. There is significant overlap between the arterial circulations. The lateral geniculate nucleus may be affected by compromise to the internal carotid artery (anterior choroidal artery branch), middle or posterior cerebral artery. The optic radiations are served by both the anterior choroidal and middle cerebral arteries. The occipital cortex is supplied by the middle and posterior cerebral arteries. A posterior cerebral artery stroke may produce a complete homonymous hemianopia with macular sparing owing to an intact blood supply from the middle cerebral artery.