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P Cervantes, M Hernandez-Barrios, M Greaves-Angeli, J Fromow-Guerra, L Arellanes-Garcia; Fluorescein Fundus Angiography in Mexican Patients with Classic Pars Planitis . Invest. Ophthalmol. Vis. Sci. 2002;43(13):4269.
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Purpose:Pars planitis is an idiopathic intermediate uveitis that primarily affects vitreous, peripheral retina and pars plana. The purpose of our study was to compare the angiographic patterns to the severity of intraocular inflammation. Methods:A retrospective, descriptive and transversal study was made. We reviewed the clinical charts of 105 pars planitis patients seen at the Inflammatory Eye Disease Clinic of the Asociación Para Evitar la Ceguera in Mexico from July of 1987 to May of 2001. We analysed fluorescein fundus angiographic patterns and compared them to the severity of intraocular inflammation clinically recorded at the time of the angiography. The angiographic patterns were: optic disc hyperfluorescence, macular hyperfluorescence, capillary («fern pattern») hyperfluorescence, segmental vascular hyperfluorescence, optic disc and neovascularization elsewhere. Results:The angiographies of four hundred and sixty four eyes were evaluated. The most common findings were fern capillary hyperfluorescence (65-88%), papillary hyperfluorescence (44-69%) and macular petal hyperfluorescence (37-63%). These angiographic findings were seen even in eyes without clinically evident inflammation. Conclusion:These angiographic findings are due to an increase in vascular permeability (retinal, peripapillar and perifoveal vessels). We propose that Classic Pars Planitis is initially a retinal vasculitis that affects small vessels.
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