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Retina. 1997;17(4):286-93.

Choroidal findings in the course of idiopathic serous pigment epithelium detachment detected by indocyanine green videoangiography.

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1
Department of Ophthalmology, University of Ancona, Italy.

Abstract

PURPOSE:

To analyze the choroidal alterations associated with idiopathic serous pigment epithelium detachment.

METHODS:

Twenty-five consecutive patients affected by idiopathic serous pigment epithelium detachment underwent ophthalmoscopy, fluorescein angiography, and indocyanine green videoangiography.

RESULTS:

On indocyanine green videoangiography an early, complete, and homogeneous filling of the pigment epithelium detachment was always observed. In the late phases, the indocyanine green pattern depended on the size of the detachment. An idiopathic serous pigment epithelium detachment larger than the diameter of one optic disk was still hyperfluorescent in the late phases of indocyanine green videoangiography and was surrounded by a ring of brighter hyperfluorescence. An idiopathic serous pigment epithelium detachment smaller than the diameter of one optic disk usually could be visualized in the late phases as a hypofluorescent area surrounded by a hyperfluorescent ring. In 30 eyes (83.3%), choroidal hyperpermeability was observed. An irregular dilatation of the choroidal veins at the site or within an area the size of one disk diameter from the detachments could be visualized on indocyanine green videoangiography in 12 of 36 affected eyes (33.3%); in three cases an active focus of central serous chorioretinopathy with subretinal leakage developed in the follow-up period.

CONCLUSION:

The observation that pigment epithelium detachments frequently are associated with choroidal leakage and venous dilatation supports the hypothesis that an idiopathic serous pigment epithelium detachment is a variant of central serous chorioretinopathy. Moreover, the choroidal permeability alterations detected by indocyanine green videoangiography would support the theory of Gass that idiopathic serous pigment epithelium detachments could be caused by exudation of fluids from the choroidal vessels.

[Indexed for MEDLINE]

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