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September 1982

Occlusion of the Posterior Ciliary ArteryV. Protective Influence of Simultaneous Vortex Vein Occlusion

Author Affiliations

From the Department of Ophthalmology, the University of Iowa College of Medicine, Iowa City.

Arch Ophthalmol. 1982;100(9):1481-1491. doi:10.1001/archopht.1982.01030040459019

• In 28 eyes of rhesus monkeys, occlusion of all the posterior ciliary arteries (PCAs) was either performed alone (in seven eyes) or accompanied simultaneously by occlusion of one vortex vein (VV) (in 11 eyes) or two VVs (in ten eyes). In addition, in four eyes lateral PCA occlusion was combined with occlusion of two VVs. All the eyes were investigated for acute ischemic lesions in the fundus, ie, outer retinal infarcts and anterior ischemic optic neuropathy (AION). The findings indicate that occlusion of one or two VVs exercised a distinct protective influence against the acute ischemic lesions. The study also demonstrated that notable interstudy and intrastudy variations in the incidence and extent of retinal infarcts and AION among the various previously reported experimental PCA occlusion studies were caused by unintentional and unnoticed cutting of some of the VVs in the orbit.

Hayreh SS, Baines JAB:  Occlusion of the posterior ciliary artery: I. Effects on choroidal circulation . Br J Ophthalmol 1972;56:719-735.Article
Hayreh SS, Baines JAB:  Occlusion of the posterior ciliary artery: II. Chorioretinal lesions . Br J Ophthalmol 1972;56:736-753.Article
Hayreh SS, Baines JAB:  Occlusion of the posterior ciliary artery: III. Effects on the optic nervehead . Br J Ophthalmol 1972;56:754-764.Article
Anderson DR, Davis B:  Retina and optic nerve after posterior ciliary artery occlusion: An experimental study in squirrel monkeys . Arch Ophthalmol 1974;92:422-426.Article
McLeod D, Marshall J, Kohner EM:  Role of axoplasmic transport in the pathophysiology of ischaemic disc swelling . Br J Ophthalmol 1980;64:247-261.Article
Radius RL:  Optic nerve fast axonal transport abnormalities in primates: Occurrence after short posterior ciliary artery occlusion . Arch Ophthalmol 1980;98:2018-2022.Article
Ellenberger C:  Ischemic optic neuropathy as a possible early complication of vascular hypertension . Am J Ophthalmol 1979;88:1045-1051.
Hayreh SS:  Anterior ischemic optic neuropathy: I. Terminology and pathogenesis . Br J Ophthalmol 1974;58:955-963.Article
Hayreh SS: Anterior Ischemic Optic Neuropathy . New York, Springer Publishing Co Inc, 1975.
Hayreh SS:  Segmental nature of the choroidal vasculature . Br J Ophthalmol 1975;59:631-648.Article
Hayreh SS:  Experimental allergic encephalomyelitis: II. Retinal and other ocular manifestations . Invest Ophthalmol Vis Sci 1981;21:270-281.
Ernest JT, Stern WH, Archer DB:  Submacular choroidal circulation . Am J Ophthalmol 1976;81:574-582.
Hayreh SS, Baines JAB:  Occlusion of the vortex veins: An experimental study . Br J Ophthalmol 1973;57:217-238.Article
Hayreh SS:  The long posterior ciliary arteries . Albrecht von Graefes Arch Klin Exp Ophthalmol 1974;192:197-213.Article