The short ciliary arteries are small blood vessels that branch off from the ophthalmic artery, which is a major artery supplying the eye. These arteries primarily provide blood to the choroid, a layer of blood vessels located between the retina and the sclera, as well as to the ciliary body and the iris. Each short ciliary artery typically enters the eye through the sclera and divides into smaller branches. These branches play a crucial role in nourishing the eye's internal structures, ensuring proper function and health of the visual system.