The authors describe in seven eyes of four patients a form of serpiginous choroiditis beginning in the macula without initial peripapillary activity. Eyes with macular serpiginous choroiditis often had a poor visual prognosis and sometimes developed subretinal neovascularization. Fluorescein angiography of the acute lesions showed hypofluorescence; some cases were thus initially diagnosed as having choroidal ischemia. Fluorescein angiography in one eye, however, suggested that at least some of the hypofluorescence seen acutely in eyes with serpiginous choroiditis is secondary to blocked fluorescence from 'opaque' retinal pigment epithelium.
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