Arterial Supply of the Eye

The eye's blood supply primarily comes from the ophthalmic artery, a branch of the internal carotid artery. This artery enters the orbit through a small opening and branches into smaller arteries that nourish the eye tissues. Key branches include the central retinal artery, which supplies the inner retina, and the ciliary arteries that provide blood to the middle and outer layers, including the iris and ciliary body. This extensive network ensures the eye receives vital oxygen and nutrients for proper vision and health.