It gives off some of the anteromedial ganglionic vessels, but these are principally derived from the anterior cerebral artery.

[1] Anatomical variations of the anterior communicating artery are relatively common.

[3] Aneurysms of the anterior communicating artery are the most common circle of Willis aneurysm[4] and can cause visual field defects such as bitemporal heteronymous hemianopsia (due to compression of the optic chiasm),[5] psychopathology and frontal lobe pathology.

This can often preserve the cerebral blood supply well enough to avoid the symptoms of ischemia.

[7] This article incorporates text in the public domain from page 572 of the 20th edition of Gray's Anatomy (1918) ocular group: central retinal