The Long Posterior Ciliary Arteries are a pair of blood vessels that supply oxygen and nutrients to the eye, specifically the outer layers of the retina and the choroid. They branch off from the ophthalmic artery, which is a major artery that provides blood to the eye and surrounding structures. These arteries play a crucial role in maintaining the health and function of the eye. Each Long Posterior Ciliary Artery travels along the back of the eye and divides into smaller branches. These branches penetrate the sclera, the white outer layer of the eyeball, to reach the choroid and retina. Proper blood flow through these arteries is essential for visual function and overall eye health.