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September 1978

The Structural Basis of Altered Vascular Permeability Following Intraocular Inflammation

Author Affiliations

From the Department of Pathology, University of California and San Francisco General Hospital.

Arch Ophthalmol. 1978;96(9):1668-1676. doi:10.1001/archopht.1978.03910060294024

• An immunogenic uveitis was produced in rabbits by the intravitreal injection of bovine γ-globulin. Four to six months later, an alteration in vascular permeability was determined by greater accumulation of iodinated l 125 serum albumin in the previously inflamed eye than in the normal eye. An altered vascular permeability was found only in eyes with profound structural changes. Possible sites of extravascular protein leakage were: (1) proliferated blood vessels in the posterior chamber and vitreous; and (2) leakage through the disrupted and scarred ciliary epithelium. In eyes without evidence of altered vascular permeability, a persistent chronic inflammation was observed, and gliosis and chorioretinal scarring was prominent.