[Benign concentric annular macular dystrophy].

In routine eye examination of a 32-year-old male patient an annular macular dystrophy was noted in absence of distinctive visual complaints. Visual acuity was 20/20, the photopic and scotopic electroretinograms were normal. The ring scotoma in perimetry and the macula finding in ophthalmoscopy corresponded to the fluorescein angiographic pattern. Color vision deficiency was only mild without any predominant axis of confusion. Benign concentric annular macular dystrophy is rarely described in literature. Differential diagnosis includes all 'bull's eye' conditions.