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The long posterior ciliary arteries are arteries of the orbit. There are long posterior ciliary arteries two on each side of the body. They are branches of the ophthalmic artery. They pass forward within the eye to reach the ciliary body where they ramify and anastomose with the anterior ciliary arteries, thus forming the major arterial circle ...
- Ciliary arteries
The ciliary arteries are divisible into three groups, the...
- Ciliary body
Structure. The ciliary body is a ring-shaped thickening of...
- Ciliary arteries
Jul 20, 2023 · The long posterior ciliary arteries are branches of the posterior ciliary arteries which are in turn branches of the ophthalmic artery. They supply the anterior part of the choroid of the ocular globe as well as the iris and ciliary muscle 1,2. Each eye has a number of long ciliary arteries. The most posterior, typically one on either side of ...
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The posterior ciliary artery (PCA) circulation is the main source of blood supply to the optic nerve head (ONH), and it also supplies the choroid up to the equator, the retinal pigment epithelium (RPE), the outer 130 μm of retina (and, when a cilioretinal artery is present, the entire thickness of the retina in that region), and the medial and lateral segments of the ciliary body and iris.
- Sohan Singh Hayreh
- 2004
The long posterior ciliary arteries arise as trunks from the ophthalmic artery, pierce the globe near the optic nerve, and run forward to the ciliary body, where they anastomose to form the major arterial circle (Fig. 2-6 ). The anterior ciliary arteries also contribute to the major circle, but to a lesser extent than the long posterior ciliary ...
There are no named branches; however, the long posterior ciliary arteries divide in the ciliary body and form an anastomosis with the anterior ciliary arteries. This forms the major arterial circle of the iris (Forrester et al., 2008).
