Book chapter
Posterior Ciliary Artery Occlusion and Choroidal Ischemia
Ocular Vascular Occlusive Disorders, pp.379-427
Springer International Publishing
12/08/2014
DOI: 10.1007/978-3-319-12781-1_18
Abstract
The posterior ciliary arteries (PCAs) supply the choroid and the optic nerve head. As discussed in Chap. 10.1007/978-3-319-12781-1_4, information on the vascular pattern of the choroid and of the PCAs was previously drawn entirely from postmortem cast studies, ever since the first description by Frederik Ruysch [1] in 1700. Extensive anatomical studies of the choroidal vascular bed have been conducted, mostly by studying casts prepared by the postmortem injection of a variety of materials [2–8] and also by studying casts by scanning electron microscopy [9–12]. These studies formed the basis of the classical anatomical textbook description of the choroidal vasculature. According to most of these descriptions: (1) PCAs have no segmental distribution, (2) they anastomose freely with one another as well as with the anterior ciliary arteries, (3) there are inter-arterial and arteriovenous anastomoses in the choroid, and (4) the choriocapillaris forms a freely communicating and an uninterrupted vascular bed in the entire choroid [8, 11]. From these postmortem anatomical descriptions, it was generally concluded that occlusion of PCA or one of its branches should not produce an ischemic lesion.
Details
- Title: Subtitle
- Posterior Ciliary Artery Occlusion and Choroidal Ischemia
- Creators
- Sohan Singh Hayreh - University of Iowa Hospitals and Clinics
- Resource Type
- Book chapter
- Publication Details
- Ocular Vascular Occlusive Disorders, pp.379-427
- DOI
- 10.1007/978-3-319-12781-1_18
- Publisher
- Springer International Publishing; Cham
- Language
- English
- Date published
- 12/08/2014
- Academic Unit
- Ophthalmology and Visual Sciences
- Record Identifier
- 9984182970502771
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