The choriocapillaris

Based on present fluorescein fundus angiography and correlated with the previous neoprene latex and other injection studies, a pattern for the choriocapillaris has been worked out. It reveals that each terminal choroidal arteriole supplies an independent segment of choriocapillaris, with the arteriole joining the segment in its centre; the draining venules lie around the periphery of this segment. Each segment is an independent unit of a polygonal shape, with no anastomosis with the adjacent segments in vivo. The various segments are arranged like a mosaic, the borders of the mosaic being formed by the venous channels. This picture of the pattern of the choriocapillaris helps to explain the localized nature of various inflammatory, metastatic and degenerative lesions. Ein Modell der Gefäßverteilung in der Choriocapillaris konnte aufgrund von fluoreszein-angiographischen Untersuchungen und von Gefäßinjektionen mit Neopren ausgearbeitet werden. Jede Endarteriole der Gefäßhaut versorgt einen bestimmten Gewebsbezirk. Die Arterie liegt im Mittelpunkt dieses Gewebsbezirkes. Die Venen liegen in der Peripherie. Jeder Bezirk stellt eine unabhängige Einheit dar. Anastomosen zwischen benachbarten Bezirken gibt es am lebenden Auge nicht. Die verschiedenen Bezirke formen ein Mosaik, wobei die äußeren Grenzen immer von den Venen gebildet werden. Dieses Modell der Gefäßverteilung der Choriocapillaris erlaubt es, das lokalisierte Auftreten verschiedener entzündlicher, metastatischer und degenerativer Veränderungen zu erklären.

[1]  S. Hayreh Vascular pattern of the choriocapillaris. , 1974, Experimental eye research.

[2]  S. Hayreh,et al.  Occlusion of the posterior ciliary artery. II. Chorio-retinal lesions. , 1972, The British journal of ophthalmology.

[3]  S. Hayreh,et al.  Occlusion of the posterior ciliary artery. I. Effects on choroidal circulation. , 1972, The British journal of ophthalmology.

[4]  T. Fujino,et al.  Observations on the anatomy and pathology of the choroidal vasculature. , 1967, Archives of ophthalmology.

[5]  A. E. Maumenee,et al.  Acute posterior multifocal placoid pigment epitheliopathy. , 1972, American journal of ophthalmology.

[6]  A. Gay,et al.  CHORIORETINAL VASCULAR OCCLUSIONS WITH LATEX SPHERES. , 1964, Investigative ophthalmology.

[7]  S. Hayreh Submacular choroidal vascular pattern , 1974, Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie.

[8]  B. Klien Ischemic infarcts of the choroid (Elschinig spots). A cause of retinal separation in hypertensive disease with renal insufficiency. A clinical and histopathologic study. , 1968, American journal of ophthalmology.

[9]  S S Hayreh,et al.  Blood supply of the optic nerve head and its role in optic atrophy, glaucoma, and oedema of the optic disc. , 1969, The British journal of ophthalmology.

[10]  S. Hayreh Occlusion of the posterior ciliary arteries. , 1973, Transactions - American Academy of Ophthalmology and Otolaryngology. American Academy of Ophthalmology and Otolaryngology.

[11]  K. Wybar Vascular Anatomy of the Choroid in Relation to Selective Localization of Ocular Disease * , 1954, The British journal of ophthalmology.

[12]  S S Hayreh,et al.  Vasogenic origin of visual field defects and optic nerve changes in glaucoma. , 1970, The British journal of ophthalmology.

[13]  N. Ashton,et al.  Observations on the Choroidal Circulation * , 1952, The British journal of ophthalmology.

[14]  C. Dollery,et al.  Effect of raised intraocular pressure on the retinal and choroidal circulation. , 1968, Investigative ophthalmology.

[15]  J. Rohen MORPHOLOGY OF THE UVEAL TRACT , 1965, International ophthalmology clinics.