Abstract
The choroid plays an integral role in the evolution of a number of inflammatory eye diseases but only limited information is provided on the choroidal vasculature by fluorescein angiography. This study used indocyanine green (ICG) videoangiography to assess the degree of choroidal vascular involvement in inflammatory eye diseases and the results obtained were compared with fluorescein angiography. A total of 34 patients were examined: 6 with retinal vasculitis and 28 with chorioretinitis of various aetiologies. Areas of active involvement of the choroid were seen as areas of hypofluorescence on ICG angiography, representing areas of inflammatory infiltrate and/or choroidal hypoperfusion. No leakage of ICG occurred from large choroidal vessels at any stage in any disease. In contrast to sodium fluorescein, there was no leakage of ICG from retinal vessels in active inflammation. An inflammatory choroidal neovascular membrane leaked fluorescein and fluoresced late with ICG. ICG videoangiography provides useful information on the degree of choroidal involvement in inflammatory eye disease and is a valuable adjunct to fluorescein angiography.
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