Thirty-three pateints had adult-onset foveomacular dystrophy. The macular lesions typically resulted in a mild to moderate decrease in vision and appeared as small, yellow, bilateral, slightly elevated, pigment epithelial lesions with areas of hyperpigmentation. The characteristic finding on fluorescein angiography was a ring of hyperfluorescence surrounding an area of hypofluorescence. The electro-oculograms were either normal or slightly subnormal in most cases. This dystrophy appears to have an autosomal dominant transmission.